708results about How to "Long term storage" patented technology

The invention relates to silicon rubber with high refractive index and high transparency for optical encapsulation and a preparation method thereof. The silicon rubber is prepared from a phenyl vinyl polysiloxane component A, a silicon resin component B containing phenyl vinyl, a phenyl component C containing hydrogen polyoxyalkylene, a platinum catalyst component D, a catalytic inhibitor component E, a modified polysiloxane component F, and a water remover component G in a mixing manner. The silicon rubber not only has over 1.50 of refractive index, but also is good in transparency, excellent in adhesion, and stable in performance, can resist heat and ultraviolet radiation for a long period of time, can meet various requirements of LED (light-emitting diode) encapsulation, and is an ideal encapsulation material of the LED. The silicon rubber can be packaged into a bi-component product; the product has good storage stability; and high transparency is still kept after the product is stored for over 6 months.

The invention discloses an acidic cleaning composition. The acidic cleaning composition is characterized in that the composition comprises the following components by weight percent: 10-90% of hydrogen peroxide adduct which is stable under the acidic condition, 10-90% of acidic material, 0-50% of anionic surfactant, 0-20% of nonionic surfactant, 0-10% of chelating reagent, 0-90% of additive, 0-40% of activator, 0-10% of corrosion inhibitor and 0-15% of other reagents. The acidic cleaning composition disclosed by the invention has multiple functions of bleaching, descaling, disinfecting, removing the biofilm and the like; and the composition is mainly used as the surface cleaning agent, and can be dispersed in water to wash the inside of the washing machine and the inside of the dish-washing machine or used to clean and disinfect the common hard surface, etc.

The invention relates to a fire-extinguishing composition containing amino acid compounds. The fire-extinguishing composition comprises the following components in percentage by mass: 10-70% of amino acid and 30-90% of fire retardant; and in the fire-extinguishing composition, fireworks drug is used as heat source and power source, and the fire-extinguishing composition is driven by setting fire to the fireworks drug to react to generate a large amount of fire-extinguishing substances which are sprayed out together with the fireworks drug to extinguish fire. By adopting the amino acid compounds and through using the characteristic of low toxicity of amino acid, the fire-extinguishing composition has no harm to people and livestock; and in addition, the amino acid compounds decompose and generate various aerosol fire-extinguishing substances which are excellent in fire-extinguishing effect, therefore, the fire-extinguishing efficiency of the fire-extinguishing composition is improved.

The invention relates to a prescription and a preparation method of rejoicing powder having a new dosage form and used for preventing or treating the senile dementia, and belongs to the biological medicine field. The rejoicing powder having a new dosage form is based on rejoicing powder having an ancient classic prescription and treats Radix Polygalae, Acorus gramineus and the like as primary medicines, the primary medicines are pretreated, partial or all medicines are extracted with water or an organic solvent in necessity to obtain effective components, the primary medicines or the effective components are mixed with proper medicinal auxiliary materials, and the rejoicing powder having the new dosage form is prepared through a certain preparation technology. The traditional prescription and the traditional technology for preparing the powder through simply crushing all medicines are changed in the invention, a new method and a new technology are applied against modern clinic medicine use characteristics to prepare the novel powder, and technological products have the characteristics of safety, effectiveness, controllable quality, convenient taking and the like of modern medicines, have the advantages of high biological utilization degrees of the effective components, fast effectiveness, substantial improvement of the product quality, and effective guarantee of the basic efficacies comprising qi benefiting, heart nourishing, nerve calming and tranquilizing, and have unique clinic application values in the prevention and the treatment of the senile dementia.

The invention discloses a new crystal form X, Y and Z of 2-(3-cyanogroup-4-isobutoxy) phenyl-4-methyl-5-thiazole formic acid (febuxostat for short) with the formula of I and a preparing method thereof, and is confirmed by a melting point and a powder X diffraction pattern. The febuxostat prepared with the method is stable in temperature, illumination and humidity and is favourable for storage fora long term; adopted solvent is safe and easy to remove, and the method has easy operation, is suitable for industrial production and is suitable for directly producing preparation.

The invention relates to a food fruit material, wherein, 100 portions by weight of which is prepared from the raw materials as follows: 45 potions to 80 portions of fruit, 1 portion to 3 portions of modified starch, 0.01 portion to 0.06 portion of sodium citrate, 0.01 portion to 0.03 portion of Acesulfame-K and 0.01 portion to 0.1 portion of aspartame and the rest is water to make up 100 portions. The invention also provides a method for producing the food fruit material and a food added with the food fruit material which is produced by the method. The food fruit material provided by the invention has low content of cane sugar, contains various fruits and is good both in nutrition and taste. Furthermore, the manufacturing method provided by the invention can produce fruit-contained food with different flavors; selection and sterilization of the fruit are strict, and both the degree of hardness and softness and degree of tartness and sweetness of the fruit material can be set, thus being suitable for being selected and taken by the consumers for a long time.

The invention provides a face brick for decorating a building wall and a production technique, in particular to a decorative face brick adhered on the outer surface of a heat-insulating system of an external wall and the production technique of the face brick. The face brick adopts high molecular polymer and cement as gelled materials, quartz sand and / or calcium carbonate as aggregate, and acrylic acid polyurethane resin as glazed face. The face brick consists of polymers formed by cement and high molecular polymer particles, and has high strength, high tenacity, excellent resistance to pollution and light mass; the brick can release the temperature stress slowly and is easy to be cleaned. The production technique is simple and is suitable for large-scale production.

The invention discloses an antiallergic microemulsion, which contains: sorbitan sesquioleate and PEG‑60 sorbitan stearate; one or more oily components, Selected from hydrocarbon oils, synthetic oils, animal and vegetable oils, silicone oils and mixtures thereof; polyhydric alcohols and water; one or more water-soluble antiallergic raw materials. The microemulsion is a water-in-oil system, has good stability, can be stored for a long time, has a good solubilizing effect on water-soluble anti-allergic raw materials, and can be made into products with higher functional components.

The invention relates to polycarboxylic efficient concrete water reducer for high-performance prefabricated parts and a synthesis method thereof. The polycarboxylic efficient concrete water reducer in a comb structure is characterized by being formed by using TPEG 2400 (methyl alkenyl polyoxyethylene ether), unsaturated crylic acid and activated monomer AMPS (2-acrylamide 2- methylpro panesulfonic acid), and using a redox system (hydrogen peroxide-VC (ascorbic acid)) for one-step mid-temperature aqueous free radical polymerization. The polycarboxylic efficient concrete water reducer is provided with active groups such as ether bonds, carboxylic acid groups, sulfonic acid groups, polyoxyethylene alkyl ethers and amide groups on long main chains and side chains. The product with 40% solid content has the effects of high water reducing rate, high early strength, low gas content, low chlorine, low alkali and no rusting to reinforcement steel bars. The product is prepared into the product with 20% solid content for use. After 1.0-1.2% of cementing material is added, the product has fine wrapping performance and water retentivity when slump is 30-50mm. The product can be used for concrete for high-performance prefabricated parts, such as C80 high-strength tubular piles and C60 prefabricated beams.

The invention relates to pitch emulsion which comprises 45-70wt% of pitch raw material, 0.01-2wt% of additive, 0.05-5wt% of emulsifying agent, 0.02-3wt% of auxiliary agent and 25-45wt% of water, wherein the additive is selected from one or several of organic acid, ester, alkali metal salt of the organic acid and alkali metal salt of the ester. The preparation method comprises the following steps: when preparing the pitch emulsion, adding the additive into the pitch raw material at the temperature of 80-150 DEG C firstly, afterwards heating the temperature at 100-190 DEG C and then mixing with a solution containing the emulsifying agent, the auxiliary agent and the water at the temperature of 40-95 DEG C. The pitch emulsion has high storage stability and small particle diameter of particles.

The invention relates to a cement grinding-aid intensifier. The weight percent is that alkylol amine: polyalcohol: amide: initiator is equal to 1:1.2-1.6:0.1-0.5:0.01-0.04. The alkylol amine and the polyalcohol are mixed in a reaction tank evenly, the reaction acidity is controlled under stirring at 100-110 DEG C; the reaction time is 2-6 hours; the alkylol amine and the initiator are added, the pH value is adjusted to 7-7.5, then stirring is carried out for reaction for 3-5 hours; alkali is used for neutralization, the pH value is 8-10, and the finished product is obtained. The cement grinding-aid intensifier has the advantages that static electricity produced during powder grinding can be eliminated, thus facilitating the materials not to bond each other and penetrate into the cracks of grains and improving powder grinding efficiency; catalysis is acted during cement hydration, the diffluent complexing ions are produced, and the intensity of the testing body is improved; separation of cement powder grains in super thin grinding powder milling is restrained, thus avoiding the phenomenon of sticky balls, wall built-up and static electricity absorption; powder grinding ability of millers is improved, the specific surface of the thin powder is increased, and early strength, fast coagulation and hydration are fast; product cost is lowered, effect for aiding grinding is outstanding, the working environment is improved, performance of cement is improved obviously, production process is simple, and the products can be stored for a long period.

The invention relates to a method of preparing polymer asphalt with one step to modify the asphalt by adopting the polymer as a modifying agent. In a peptizator of 80 to 160 DEG C which account for 5 to 27 percent of the total weight of the raw materials, the polymer modifying agent and 0.1 to 2 percent of stabilizer which account for 2 to 9 percent of the total weight of the raw materials are added, and then is poured into a plastic extruder where the rotating speed is 300 to 800 rotations per second to be extruded; the extruding temperature is controlled to be 130 to 210 DEG C; the extruded polymer is directly and mixingly stirred for 0.5 to 6 hours together with the asphalt which accounts for 62 to 89.9 percent of the total weight of the raw materials, then the polymer modified asphalt is gained, which is provided with good heat preservation function, good low temperature expanding performance, anti-fatigue and anti-tearing function and relatively good weatherproof function. After being mixed with the stones, the mixed materials perform good water stability and high and low temperature stability, which can effectively improve the using performance of the asphalt pavement and prolong the service life.

The invention discloses a processing method of a vacuum refrigerating flavored prawn cake. The processing procedure comprises the following steps of: material selecting, pretreating, pulping, forming, steaming, cooling, traying, refrigerating fast, cutting, refrigerating fast, vacuum refrigerating and drying, sorting, metal detecting and packaging. The flavored prawn cake comprises the following raw materials in parts by weight: 70-80 parts of minced fillet, 20-30 parts of peeled prawns, 8-10 parts of soy protein isolate and 2-4 parts of prawn meat extract. The processing method of the vacuum refrigerating flavored prawn cake provided by the invention has the advantages that the product appearance is good in color, that the original rich nutrition ingredients and the special flavor and taste of the vacuum refrigerating flavored prawn cake are reserved, that other bad smell is not generated, and that the vacuum refrigerating flavored prawn cake can be stored for a long time even at normal temperature, has a shelf life as long as 12 months and is ready to eat.

The invention discloses a micro-emulsion edible antioxidant product and a preparation method thereof and belongs to the filed of food ingredient production. The micro-emulsion edible antioxidant product takes commonly used natural antioxidant as a main functional component. The preparation method of the product is as follows: adding selected antioxidant which can be used in food and serves as the main functional component to a system which consists of edible surfactant, cosurfactant, water and / or edible oil while stirring, thus automatically forming transparent or translucent antioxidant emulsion the drop diameter of which is 5-100nm. The invention has the advantages that the prepared micro-emulsion antioxidant is thermodynamically stable and does not layer after long-term storage, can be evenly dispersed in oily and aqueous mediums, and is convenient for use, thus greatly improving the usage effect of natural antioxidant and expanding the application range thereof.

The invention provides a conductive paste and a preparation method thereof. The conductive paste comprises aluminum powder, an inorganic binding agent, an organic carrier and metal-glass composite powder, wherein the metal-glass composite powder is of nano-particles and a core-shell structure, glass is used as a core material, and metal is used as a shell material. The conductive paste disclosed by the invention is good in storage stability and less prone to sedimentation and agglomeration, and the conductive paste is less prone to leakage from a screen during screen printing; after sintering, an aluminum film is smooth in surface and grey white, and has no aluminum vesicles or aluminum beads; and furthermore, the part in contact and superimposition with a back silver electrode, of the aluminum film is wiped by a non-dust cloth, and wiping traces and powder dropping can be avoided. The series resistance of the produced solar cell is reduced obviously, a filling factor is increased obviously, and the average photoelectric conversion efficiency of a monocrystalline silicon cell piece can be above 18.20%. Simultaneously, the conductive paste disclosed by the invention is good in construction performance, a film layer formed after sintering is compact, the sintering thickness is uniform, the bending of a silicon chip is small, the sheet resistance is small and the open circuit voltage (Voc) of the formed cell is high.

The invention discloses a preparation method of a rubber and plastic compound modified asphalt with stable heat storage, comprising the following steps: preparing linear low-density polyethylene graft on a double-screw extruder; on an open mill or an internal rubber mixer, preparing accessory ingredients, such as the polyethylene graft, rubber, an accelerator, an activator, a vulcanizing agent and the like into the rubber and plastic compound by warming, wherein the rubber and plastic compound is a thermoplastic elastomer; heating 100 parts of petroleum asphalt to 150-200 DEG C; adding 3-5 parts of prepared rubber and plastic compound; intensely shearing at high speed by a high-speed emulsification dispersion machine dedicated for preparing the polymer modified asphalt; completely meltingand shearing the rubber and plastic compound; and evenly dispersing asphalt to obtain the rubber and plastic compound modified asphalt. The preparation method is easy to prepare the modified asphalt and only needs to charge once. The prepared modified asphalt consumes a small quantity of vulcanizing agent, has good compatibility of the rubber and plastic compound and the asphalt, stable heat storage, good high-temperature stability and good low-temperature crack resistance and can be used for road paving, buildings, waterproof materials and the like.

The instant freeze dried hot and spicy food consists of staple food and auxiliary food. The staple food is freeze dried and may be served simply after being scalded in hot water. The auxiliary food includes sauce and seasoning, the sauce is cooked with butter, Pixian County broad bean paste, beef, sesame and peanut paste, chili powder, ginger, garlic and prickleash; and the seasoning is mixture of salt, monosodium glutamate and chili powder. The staple food, the sauce and the seasoning in the weight ratio of 1 to 1-1.2 to 0.25-0.35 are packed separately and set inside one outer package. The instant freeze dried hot and spicy food is produced through an industrial process and convenient in eating.

The invention discloses a method for preparing N-halamine antibiotic material, which comprises the following steps: (a) soaking a to-be-treated material in the solution which contains hydantoin derivant or sprinkling / daubing the solution which contains hydantoin derivant on the to-be-treated material to entables the to-be-treated material to adsorb hydantoin derivant, (b) enabling hydantoin derivant to combine on the material by raising temperature, (c) soaking the material after (b) process in the solution which contains active halogen solution or sprinkling / daubing the solution which contains active halogen on the material to make the material activate and be provided with antibiotic activity.

A process for preparing the liposome of medicine includes such steps as dissolving the lipid in tert-butanol, dissolving the medicine in water, proportional mixing, freeze drying, and hydrating. Its advantages are simple process and high stability.

The invention relates to a full-automatic wrapping vacuum packaging machine, comprising a conveying mechanism for substances to be packaged, an adhesive film distribution mechanism, a vacuum treatment mechanism and a finished-product output mechanism, wherein the conveying mechanism for the substances to be packaged comprises an emptying area A and an emptying area B; the adhesive film distribution mechanism is arranged between the emptying area A and the emptying area B, and comprises an upper packaging and distributing mechanism, a lower packaging and distributing mechanism and a sealing-cutting mechanism; the sealing-cutting mechanism comprises an upper sealing-cutting die and a lower sealing-cutting die which are driven by a power mechanism, and the upper sealing-cutting die is combined with the lower sealing-cutting die for cutting off and binding an upper adhesive film and a lower adhesive film which are used for coating the substances to be packaged; and the vacuum treatment mechanism comprises a conveying belt and a heating and binding mechanism. The vacuum packaging machine provided by the invention can perform vacuum package by utilizing at least three methods, thus the vacuum packaging machine can be used in diversified modes, and the scope of application is quite wide.

The composite microbial fertilizer for preventing and controlling diseases of continuous crop consists of high efficiency composite microbial preparation 10-35 wt%, inorganic fertilizer 5-30 wt% and activated turf as fertilizer matrix 60-85 wt%. The composite microbial preparation consists of microbial preparation and adsorbent. The composite microbial fertilizer can plant high efficiency microbe colony to inhibit the growth and propagation of germ for successful continuous crop planting. In addition, the present invention is favorable to optimizing soil microbe colony structure, allocating soil nutrients reasonably and raising soil production capacity.

The invention provides a high-light-transmittance UV-moisture dual-curing adhesive. The high-light-transmittance UV-moisture dual-curing adhesive is prepared from, by weight, 30-70 parts of polyurethane prepolymer, 1-20 parts of reactive diluent, 1-10 parts of photoinitiator, 0.01-0.5 part of flatting agent, 0.1-1 part of polymerization inhibitor and 0.1-10 parts of silane coupling agent. The polyurethane prepolymer is synthesized by aliphatic series diisocyanate, dihydric alcohol or polyhydric alcohol and hydroxy containing epoxy monoacrylate, and the molar ratio of aliphatic series diisocyanate to dihydric alcohol or polyhydric alcohol to hydroxy epoxy monoacrylate is (1-1.2):1(0.5-0.8). According to the adhesive, fast curing after UV initiation can be achieved, a stable state of moisture curing non-initiation before UV initiation can be achieved, and good comprehensive performance is achieved.

Cyanogen-free preplated copper solution belongs to the technical field of surface treatment electroplating. The solution adopts a nontoxic organic phosphine compound to replace cyanide as a complexing agent for the preplated copper, and is particularly suitable for preplated copper used to electroplate steel, aluminum, magnesium, zinc, titanium and titanium alloy. The cyanogen-free preplated copper solution has the following main technical characteristic that the solution consists of (a) one sort of copper sulphate, basic cupric carbonate or copper nitrate with the volume concentration of between 30 and 60 g / L; (b) one sort or two sorts of compounds selected from methylene diphosphonic acid, 1-hydroxyethylidene 1.1 diphosphonic acid and 1-hydroxybutyleneidene 1.1 diphosphonic acid with the volume concentration of between 120 and 160 g / L; (c) one sort or two sorts of compounds selected from methylamino dimethylene diphosphonic acid, hexamethylene diamine tetramethylene phosphonic acid and ethylenediamine tetramethylene phosphonic acid with the volume concentration of between 2 and 5 g / L; (d) one sort of potassium citrate, amine citrate or seignette salt with the volume concentration of between 6 and 12 g / L, and (e) polyethyleneimine alkyl slat or aliphatic amine ethoxy sulfonated substance (AESS) with the volume concentration of between 0.02 and 0.05 g / L. The cyanogen-free preplated copper solution has the characteristics of stable service performance, simple solution compositions, convenient maintenance, high safety, environmental protection, reliable plating coat binding and the like.

The invention belongs to a preparation method for a multifunctional resin modifier for wood impregnation and application of the multifunctional resin modifier. The low-alkali multi-element copolycondensation resin modifier which has functions of weight gaining enhancement, flame retardance and corrosion prevention is synthesized by taking phenol, formaldehyde, melamine and urea as main agents and taking boric acid and zinc borate as functional auxiliaries. By the adding of a certain amount of dipropylene glycol, the modifier can be stored stably for a long time, and repeated cyclic use is realized. The size stability, density, surface hardness, bending strength, bending-resistant elastic modulus, processing characteristic, the flame retardancy, the corrosion prevention and the abrasion resistance of plantation woods treated by the modifier are greatly improved; furthermore, the modifier is high in runoff resistance and high in environment al protection, does not have a loss effect on the toughness of the wood and cannot affect the painting decoration performance of the wood, and the application value of the plantation woods is increased.

The invention discloses a method for rapidly converting animal-poultry faeces into high-efficiency fertilizer, which comprises the following steps: hydrolyzing animal-poultry faeces under the acidity condition and producing amino acid (ova and germina are all killed in the process) to obtain crop synergia fertilizer; adding hydrolyticre agent into dispersant, odor absorbent, adhesive-maintaining agent, coating agent and bulking agent. The fertilizer not only has good fertilizer efficiency, but also has good effects on the proliferation of microbes in soil, can avoid occurrence of the following situations that microbes in soil die out, salt is accumulated and soil is hardened as chemical fertilizer is misused; and the implementation of the method plays a positive role in agricultural non-pollution ecological production and industrial production.

The invention discloses a superconducting energy storage impulse power electrical source, which comprises an initial charging electrical source, an electrical source switch, a follow current switch, a quench trigger device module of a superconducting energy storage electrical inducer and a load, wherein the quench trigger device module of the superconducting energy storage electrical inducer consists of a plurality of electrical source circuit modules which are connected with each other in parallel. Each electrical source circuit module has the following stricture that a charging-discharging switch and a nonlinear discharging resistor are arranged in a primary winding loop of a superconducting impulse power transformer in parallel, and a power diode is connected with the inner part of a secondary winding loop of the superconducting impulse power transformer. By adopting the structure, the superconducting energy storage impulse power electrical source can realize in-series charging andin-parallel charging of the plurality of modules, effectively realizes the impulse large current by amplifying and overlapping output impulse current with the superconducting impulse power transformer, and has the advantages of high energy-storing density and light weight and small volume of unit power electrical source.

The invention discloses an additive which can stabilize and synergize the effects of a vehicle-used methanol-diesel. Under the condition of stirring, certain amounts of n-caprylic alcohol, n-amyl alcohol, oleic acid, naphthenic acid, Span-80 and acrylic ester are respectively driven into a reactor and stirred at a slow speed to be fully and evenly mixed; then under the condition of cooling, set amount of triethanolamine is gradually added and fully stirred for complete reaction; after cooling to room temperature, barreling and sealing, the additive of the invention is obtained. The additive of the invention can enhance the burning efficiency of the methanol-diesel and achieve the purpose of saving the diesel. The methanol-diesel made by using the additive is not only transparent and stable but has good water resistance and cold resistance and can be stored for a long term; the performance indexes of the methanol-diesel can basically meet the requirements of commercial diesels, can be randomly mixed with other diesels without the phenomena of emulsion separation and phase separation and can be conveniently used; the additive can improve the shortcoming of low flash point of the methanol diesel and make up the deficiency of low cetane value of the methanol.

The invention discloses a dual component liquid silica gel for 3D printing and a printing method thereof. The liquid silica gel comprises a component A and a component B. The component A comprises following components in parts by weight: 100 parts of vinyl polysiloxane, 0.01 to 5 parts of a hydrosilylation catalyst, 1 to 10 parts of polyether polyol, and 1 to 10 parts of fumed silica. The component B comprises following components in parts by weight: 100 parts of vinyl polysiloxane, 1 to 50 parts of hydrogen containing polysiloxane, 0.01 to 5 parts of a hydrosilylation inhibitor, 1 to 10 partsof polyether polyol, and 1 to 10 parts of fumed silica. During the printing process, the thickness of the liquid silica gel does not change, the structure is not deformed, an onsite heat treatment isnot needed, only post sectioned thermosetting moulding is needed, the printing technology is simplified, and the printing cost is reduced. The liquid silica gel does not contain any organic solvent or photosensitive component, is very safe and nontoxic, and 3D products prepared from the liquid silica gel can be applied to fields, which have high safety requirements, such as children toys, food, medicines, and the like.

The invention discloses a liquid hexavalent chromium reducing agent and a preparation method thereof, cement and a preparation method thereof, relates to the field of building materials, and solves the problem of the poor long-term storage property and unstable reduction effect of a hexavalent chromium reducing agent in the prior art. . The main technical scheme is as follows: the liquid hexavalent chromium reducing agent comprises the following components of 11-23 parts by weight of ferrous ion, 2-9 parts by weight of stannous ion, 40-80 parts by weight of a solvent, 8-15 parts by weight of a dispersing agent and 6-13 parts by weight of a stabilizer. The cement with low hexavalent chromium ion content can be prepared by mixing and grinding of the liquid hexavalent chromium reducing agent, cement clinker, gypsum and mixed materials. The liquid hexavalent chromium reducing agent is used for reduction of hexavalent chromium ions in the cement into insoluble trivalence chromium to reduce the water-soluble hexavalent chromium ion content in the cement.

The invention discloses an environment- friendly soft anti- slip material and the preparation method. Said method comprises following steps: mixing immersing liquid with alcohol solution from grain processing course to prepare mixed solution, immersing charred crop straw in said mixed solution for 15- 20 days, filtering and getting dry material and airing at normal temeprature, then getting final product. The product is sprayed directly on road with snow and ice, the anti- freezing material outside will melt snow and ice, the charred piece can easily be inserted in snow and ice layer under wheel action, melted ice and snow mixes with pieces of wood sheets and acts for anti- slip function. The pieces and powder can be discharged directly with melted snow and ice without pollution, damage to automobile and road surface. It can aslo absorb chemical ammonia, which can improve trees and crop growth if recovered.