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Sterilization disinfectant and application thereof

A technology of disinfectant and stabilizer, which is applied in the field of halogenated dialkyl hydantoin sterilization and disinfectant, can solve the problems of low solubility of halogenated dialkyl hydantoin, etc., and achieves the effects of improved sterilization effect, convenient use and low corrosiveness

Inactive Publication Date: 2006-06-21
NANJING UNIV OF TECH
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AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to propose an aqueous solution of halogenated dialkylhydantoin with a greatly increased content of active ingredients and excellent solubility and bactericidal effect in view of the low solubility of halogenated dialkylhydantoin in water. Aqueous solution bactericidal disinfectant and its application

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  • Sterilization disinfectant and application thereof
  • Sterilization disinfectant and application thereof

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Effect test

Embodiment 11

[0037] The bactericidal test of each formula of embodiment 11

[0038] With each prescription sterilizing and disinfecting aqueous solution liquid preparation active ingredient, with Bacillus subtilis black variety spore (6.3×10 6 cuf / mL) is the test bacteria, and the suspension quantitative bactericidal test is carried out.

[0039] Test method: The test adopts the plate colony counting method of microorganisms. Firstly, the test bacteria were made into a bacterial suspension, and a certain concentration of fungicide was added. After acting for a period of time, 0.1 mL was placed in a petri dish containing a culture medium, and the petri dish was placed upside down in a 37°C incubator, and cultured for 24 hours. The number of surviving colonies in each Petri dish.

[0040] Test result: each formula aqueous solution preparation is to Bacillus subtilis black varietal spore (6.3 * 10 6 cuf / mL) and Staphylococcus aureus (1.3×10 7 cuf / mL) are shown in Table 2-Table 4.

[0041...

Embodiment 12

[0048] Embodiment 12 corrosion test

[0049] Test method: Stainless steel (D is 7750kg / m 3 ), carbon steel (D is 7800kg / m 3 ), copper (D is 8400kg / m 3 ), aluminum (D is 2700kg / m 3 ) were respectively made into discs with a diameter of (25±0.1) mm, a thickness of 1.0 mm, and a small hole with a diameter of 2.0 mm in the middle. The experimental principle and method are in accordance with GB10124-88 (uniform corrosion full immersion test method for metal materials laboratory). R<0.005mm / a, no corrosion; R 0.005~<0.010mm / a, basically no corrosion; R 0.010~<0.0100mm / a, mild corrosion; R 0.100~<1.000mm / a , belongs to moderate corrosion; R≥1.000mm / a, belongs to severe corrosion. The concentration of halogenated dialkylhydantoin was 1000mg / L.

[0050] Test results: As can be seen from Table 6, the halogenated dialkyl hydantoin water-soluble preparation with an effective halogenated dialkyl hydantoin concentration of 1000mg / L has less corrosion to these four metals, and the leas...

Embodiment 13

[0052] Example 13 Oilfield Water Injection Bactericidal Effect

[0053] Test method: use 1227 # , dibromohydantoin, dibromohydantoin and 1227 # A mixture of (1:1), Example 1, Example 1 and 1227 # The mixture (1:1) of the SRB in oilfield injection water (initial bacterial count was 1.1×10 4 individual / mL) to carry out the bactericidal experiment, the bactericide concentration is 50mg / L. According to the bacterial evaluation method recommended by SY5329-94, the extinction dilution method and the fungicide performance evaluation method recommended by SY / T5890-93. The bacteria bottle used in the experiment is the SRB-HX type test bottle produced by Beijing Huaxing Chemical Reagent Factory. Add a certain amount of fungicide solution into the sterilized test bottle, and then add 100ml of water sample to make the concentration of the fungicide in the test bottle reach the predetermined value. Put the test bottle in a 50°C water bath and let it stand for 1 hour, then use a steril...

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Abstract

The present invention relates to naturally degradable environment friendly halogen-containing disinfectant, and is especially disinfectant of halogeno dialkyl hydantoin aqua and its application. In room temperature, halogeno dialkyl hydantoin, stabilizer, solubilizer and and / or synergist in certain weight proportion are mixed and dissolved in water to form the liquid preparation. The liquid preparation has raised water solubility of halogeno dialkyl hydantoin and excellent disinfecting effect. The liquid preparation may be used in industrial cooling water, industry waste water, air conditioner cooling water and swimming pool water, especially oil field refilling water, as well as daily life.

Description

Technical field: [0001] The invention relates to a halogen-containing bactericidal disinfectant and its application, in particular to a halogenated dialkyl hydantoin bactericidal disinfectant and its application. Background technique: [0002] Halogenated dialkyl hydantoin is a new type of oxidizing disinfectant with high efficiency, broad spectrum, fast and safe among recently developed hydantoin disinfectants. Compared with trichloroisocyanuric acid, sodium dichloroisocyanurate, and chlorine dioxide Other halogen-containing disinfectants have the advantages of high effective halogen content, low odor, good stability, moderate effect, no irritation to skin and mucous membranes, moderate price, etc., and it can be destroyed by light, oxygen, microorganisms, etc. under natural conditions. It decomposes into ammonia and carbon dioxide in a short period of time, will not pollute the environment due to residues, and has a strong effect of killing fungi, bacteria and viruses. It...

Claims

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Application Information

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IPC IPC(8): A01N47/28A01P1/00A01P3/00
Inventor 崔群秦娟姚虎卿王海燕
Owner NANJING UNIV OF TECH
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