Name | Kathon 886 |
Synonyms | Con WT Kathon 886 Kathon biocide kathon biocide Isothiazolinone Isothiazolinone (Mit, Cmit) 5-Chloro-2-methyl-3(2H)-isothiazolone with 2-methyl-3(2H)-isothiazolone 5-Chloro-2-methyl-3(2H)-isothiazolone mixt. with 2-methyl-3(2H)-isothiazolone |
CAS | 55965-84-9 96118-96-6 |
EINECS | 220-239-6 |
InChI | InChI=1/C4H4ClNOS.C4H5NOS/c1-6-4(7)2-3(5)8-6;1-5-4(6)2-3-7-5/h2H,1H3;2-3H,1H3 |
Molecular Formula | C4H5NOS.C4H4ClNOS |
Molar Mass | 264.756 |
Density | d20 1.19 |
Boling Point | 100.1℃ at 101.325kPa |
Flash Point | 74.9°C |
Vapor Presure | 0.003-17Pa at 20-45℃ |
Appearance | Liquid |
PH | 3.43 at 20℃ and 10g/L |
Storage Condition | Sealed in dry,Room Temperature |
Toxicity | LD50 (mg/kg) orally in rabbits: 30; i.p. in male, female rats: 4.6, 4.3; LC50 (6 day) in trout, sunfish (mg/l): 0.14, 0.54; LC50 (8 day dietary) in Bobwhite quail, Peking duck (mg/kg/day): >60, >100 (J. Am. Coll. Toxicol.) |
pure as a white solid. Fp about 18 ~- 21.5 deg C; d20 1.19. 23 C viscosity (5,0±0.2) * lO-a. s. Soluble in water and low carbon alcohol, ethylene glycol and polar organic solvents. Stable at room temperature, pH 3. 5~9.5 effective. Soluble in water and lower alcohols and hydrophilic organic solvents. It can react with sodium metabisulfite (or sodium bisulfite) solution to become a non-toxic substance.
dimethyl dithiodipropionate is subjected to aminolysis reaction with methylamine to form N.N'-= methyldithiodipropionamide, and then reacted with chlorine in ethyl acetate solution, and the product is obtained by filtration, washing and drying. The ratio of the two active components in the product has a great influence on the performance of the product.
isothiazolone has good efficacy in killing and stripping fungi, bacteria, algae, mollusks and slime. In the use of content, can be naturally degraded into non-toxic substances, the environment does not produce pollution. Good miscibility, can be mixed with chlorine and other oxidizing fungicides, scale inhibitors and dispersants, most cationic surfactants, anionic surfactants and non-ionic surfactants and play a synergistic effect, and quaternary ammonium salt compound use effect is better. It can pass through the surface layer of the slime and kill the bacteria and algae in the slime, and can prevent the formation of the slime in the cooling water system. It has excellent bactericidal effect in a wide pH range and is effective in both acidic and alkaline water. Can be widely used in paper mill cooling water, oil field water injection, metal processing oil, latex, fiber and coating and other mold. However, it cannot be used in cooling water systems containing sulfide.
rabbit oral LD50:30mg/kg; Male and female rats were intraperitoneally injected with LDso:4.6mg/kg, 4. 3 mg/kg. It is corrosive, can damage the eyes, stimulate the skin, have allergic reactions, inhalation is harmful to the human body, and may be fatal by mouth or through skin absorption, if you accidentally stick to the skin or enter the eyes need to rinse with plenty of water. Avoid inhalation of dust or vapors. Toxic to fish, do not pour into lakes, rivers, ponds or public waters. High temperature environment should be avoided during storage, and dangerous goods should be treated.
LogP | -0.34-0.81 at 10-30℃ and pH5-9 |
surface tension | 72.6-73mN/m at 1-1.106g/L and 19.5-20 ℃ |
dissociation constant | 2.81-4.2 at 20-25 ℃ |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Application | isothiazolinone is internationally recognized as the most effective antiseptic, antifungal and fungicide. It is widely used in circulating cold water, paper making, coating, daily chemical, textile, leather, wood and other fields. It has excellent characteristics of high efficiency, broad spectrum and environmental protection, and has good compatibility. |
Advantages & features | isothiazolinone has the following characteristics: broad-spectrum bactericidal function: it can effectively kill algae, bacteria and fungi. Less effective dosage: about 1ppm of the effective active dosage can achieve the desired bactericidal effect. Non-toxic and non-polluting: dilute the use of concentration, it is easy to be biodegradable into non-toxic pollution-free substances. Soluble in water: very easy to mix in all kinds of formulations, the use of a wide range of PH. |
production method | N, N'-dimethyldithiodipropionamide is produced by aminolysis of dimethyl dithiodipropionate with methylamine, the reaction is then carried out by chlorine gas in the ethyl acetate solution, and the product is obtained by filtration, washing and drying. The ratio of the two active components in the product has a great influence on the performance of the product. |