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Benzisothiazolinone

Benzisothiazolinone

IUPAC name	1,2-Benzisothiazol-3(2H)one
Other names	Benzisothiazolinone, Benzisothiazolin-3-one, Benzisothiazolone
Molecular formula	C₇H₅NOS
Identifiers
Abbreviations	BIT
CAS number	2634-33-5
Properties
Molar mass	151.18 g/mol
Appearance	white powder
Melting point	158 °C ^[1]
Solubility in water	1 g/l
Hazards
Main hazards	Xn, N ^[1]
R-phrases	R22, R38, R41, R43, R50 ^[1]
S-phrases	(S2), S24, S26, S37/39, S61 ^[1]
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references

Benzisothiazolinone (BIT) is a widely used biocide and belongs to the group of isothiazolinones.

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Usage

Benzisothiazolinone has a microbicide and a fungicide mode of action. It is used as a preservative in emulsion paints, varnishes, adhesives, washing agents, fuels and in the papermaking process. In paints, it is commonly used as a mixture with methylisothiazolinone. Typical concentrations in products are 200–400 ppm depending on the application area and the combination with other biocides. According to a study in Switzerland, 19% of the paints, varnishes and coatings contained BIT in 2000. The fraction in adhesives, sealants, plasters and fillers was 25%. ^[2]

References

^ ^a ^b ^c ^d Record of 1,2-Benzisothiazol-3(2H)-one in the GESTIS Substance Database from the BGIA, accessed on 22 October 2007
^ Reinhard et al.: "Preservation of products with MCI/MI in Switzerland". Contact Dermatitis. 2001 Nov;45(5):257-64. PMID 11722483