30 results about "SODIUM OCTYL SULFATE" patented technology

It has been discovered that certain combinations compounds are excellent penetration enhancers and, as such, can be incorporated in a topical formulation to facilitate administration of active agents. The increased penetration enhancement can also lead to a reduction in the total concentration of skin irritants in the formulation. There is described herein a topical formulation comprising (i) at least one active agent; (ii) a first compound, and (iii) a second compound, wherein the first compound and second compound are different, and each is selected from the group consisting of N-lauroyl sarcosine, sodium octyl sulfate, methyl laurate, isopropyl myristate, oleic acid, glyceryl oleate and sodium lauryl sulfoacetate.

There is described a topical formulation. The topical formulation comprises: (i) diclofenac or a pharmaceutically acceptable salt thereof, (ii) a first compound, and (iii) a second compound. The first compound and second compound are different, and each is selected from the group consisting essentially of N-lauroyl sarcosine, sodium octyl sulfate, methyl laurate, isopropyl myristate, oleic acid, glyceryl oleate and sodium lauryl sulfoacetate. It has been discovered that certain combination of compounds are excellent penetration enhancers and, as such, can be incorporated in a topical formulation to facilitate administration of diclofenac or a pharmaceutically acceptable salt thereof. The increased penetration enhancement can also lead to a reduction in the total concentration of skin irritants in the formulation.

The invention relates to a method for preparing a composite hydrate accelerant. The composite accelerant is characterized by being prepared by mixing cyclopentane or methyl cyclohexane serving as a kinetic accelerant and 2-butyl octyl sodium sulfate serving as a surfactant, wherein the percentage by mass of the cyclopentane or methyl cyclohexane in a solvent is 1.3 to 15.0, and the concentration of the surfactant 2-butyl octyl sodium sulfate in the solvent is 0.32*10<-3> to 9.5*10<-3> mol / L; and 0.02 to 0.78 mass percent of sodium chloride is added into the mixture. In the method, a high-pressure gas cylinder is taken as a gas source, a pressure is properly adjusted through a pressure adjustment valve, consumed gas is metered by a mass flow meter, a temperature and the pressure in a reactor are monitored by pressure and temperature transducers, and the temperature of liquid in a water tank is controlled by means of a thermostatic water bath, so that the temperature in the reactor is adjusted; and data is acquired by a data acquisition system and a computer, and the forming condition of a hydrate in the reactor is monitored by a photoelectric lens. The method for preparing the composite hydrate accelerant not only can reduce the forming condition of the hydrate, but also can shorten the formation time of the hydrate and improve the gas storage capacity of the hydrate.

The invention discloses an extraction agent for preparing industrial phosphoric acid through a hydrochloric acid method and an extraction method thereof. The extraction agent comprises, by mass, 10-50% of one or two of tributyl phosphate or tributoxy ethyl phosphate, 15-40% of one or multiple of n-butyl alcohol, isooctanol, cyclohexanol, isopropanol and isoamylol, 10-30% of one or two of n-butyl ether, isopropyl ether and diisopropyl ether, 5-30% of one or multiple of high-carbon ketone, aliphatic amine or quaternary ammonium salt and 1-10% of one or multiple of oil-based polyoxyethylene ether phosphate, octyl sodium sulfate, alpha-alkenyl sodium sulfonate, sodium lignin sulfonate, stearyl sulfo succinamide disodium and lauryl ammonium sulfate. The extraction agent is wide in application condition, low in solvent loss and convenient to recycle, and extraction rate can reach higher than 80%.

The invention relates to a neutral environmentally-friendly water-based fire extinguishing agent and a preparation method thereof. The neutral environmentally-friendly water-based fire extinguishing agent comprises water, a first fire extinguishing component, a second fire extinguishing component, citric acid and a water-soluble surfactant component, wherein the first fire extinguishing component comprises two or more of such inorganic compounds as ammonium dihydrogen phosphate, urea, potassium carbonate and ammonium monohydric phosphate; the second fire extinguishing component comprises one or more of potassium sulfate, potassium bicarbonate, sodium phosphate, organic acid and potassium acetate; and the water-soluble surfactant component comprises two or more of sodium lauryl sulfate, hexadecyl trimethyl ammonium chloride, perfluorooctane surfapropyl betaine, sodium octyl sulfate and sodium decyl sulfate. The preparation method comprises the following steps: adding water into a stirring machine, and sequentially adding all the components while stirring, so as to obtain a product finally. The finally prepared neutral environmentally-friendly water-based fire extinguishing agent can be applied to A-class, B-class and F-class fire disasters, and has the advantages that the corrosion problem can be solved without adding an antirust agent; the low-temperature (minus 25 DEG C) problem can be solved without adding an anti-freezing agent; and the environmentally-friendly effect can be achieved.

The invention belongs to the technical field of reservoir diversion acidification construction, and in particular relates to a salinity-sensitive diversion temporary plugging agent and its preparation method and application. The salinity-sensitive shunting temporary plugging agent of the present invention is composed of the following raw materials: 20.0%-25.0% olefin sulfonic acid, 10.0%-20.0% octyl sodium sulfate, 3.0%-5.0% dodecyl sodium sulfate , 20.0%‑25.0% methanol, the balance being water. The salinity-sensitive diversion temporary plugging agent of the present invention is used in the construction process of reservoir diversion acidification. During the acidification process, the salinity-sensitive diversion temporary plugging agent will reduce the concentration of calcium ions produced during the reaction between the acid liquid and the formation. When it rises to more than 2%, 5-200 micron micelles are formed, which can block the high-permeability layer of the formation, promote the acid solution to turn to the low-permeability layer for transformation, and improve the water absorption profile; after the acidification is completed and the water injection is resumed, the formed The micelles can be quickly dissolved in water, and finally achieve the purpose of reducing blood pressure and increasing production.