Dichloroctylisothiazolinone

Structural formula
General
Surname	Dichloroctylisothiazolinone
other names	4,5-dichloro-2- n -octyl-4-isothiazolin-3-one; 4,5-dichloro-2-octyl-3 (2 H ) -isothiazolinone; Dichloroctylisothiazolone; DCOIT; DCOI; Sea-Nine 211;
Molecular formula	C 11 H 17 Cl 2 NOS
External identifiers / databases
EC number	264-843-8
ECHA InfoCard	100.058.930
PubChem	91688
Wikidata	Q1209407
properties
Molar mass	282.23 g · mol -1
Physical state	firmly
density	1.27 g cm −3
Melting point	41.1-41.7 ° C
boiling point	> 300 ° C ( decomposition )
Vapor pressure	0.98 m Pa (25 ° C)
solubility	almost insoluble in water (3.47 mg l −1 at 20 ° C); soluble in toluene , xylene , cyclohexane and isobutanol ;
safety instructions
H and P phrases	H: 302-314-317-410
	P: ?
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Dichloroctylisothiazolinon belongs to the isothiazolinone class of compounds and is a widely used biocide .

properties

Chemical properties

Dichloroctylisothiazolinone can be broken down in the environment by hydrolysis , photolysis , by microbial degradation or by the action of nucleophiles . It decomposes above 300 ° C.

use

Dichloroctylisothiazolinone is used in underwater paints , as a wood preservative and in silicone sealants.

The annual consumption in Switzerland was estimated at 1 ton in 2007.

Admission

Dichloroctylisothiazolinone is approved for use as a biocide in the European Union. In Switzerland it is approved for biocidal product type 8 (wood preservatives).

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g ^h Michael Pallaske (2006): The late notification of DCOIT for PT 8, an important contribution to the development of full organic wood preservatives for use class 4 ( Memento from September 27, 2007 in the Internet Archive ) (PDF; 71 kB) .
↑ Template: CL Inventory / not harmonized There is not yet a harmonized classification for this substance . A labeling of 4,5-dichloro-2-octyl-2H-isothiazol-3-one in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on June 21, 2016, is reproduced from a self-classification by the distributor .
^ Rohm & Haas: SEA-NINE, a broad spectrum marine antifouling agent for ship hull protection against slime
↑ Rohm & Haas: VINYZENE ™ IT 4081 DIDP - Antimicrobial Additives for Plastics
↑ Daniel Bürgi, Lars Knechtenhofer, Isabel Meier, Walter Giger : Biocides as micropollutants in wastewater and water: prioritization of biocidal active ingredients . Study on behalf of the FOEN and ERZ , Environmental Sciences Europe, 2009, 21, pp. 16–26. doi : 10.1007 / s12302-008-0032-2 .
↑ Regulation (EU) No. 437/2014 (PDF) of the Commission of April 29, 2014 on the approval of 4,5-dichloro-2-octyl-2H-isothiazol-3-one as an old active ingredient for use in biocidal products of the product type 21st
↑ 813.12 Ordinance on the placing on the market of and handling of biocidal products (Biocidal Products Ordinance, VBP) , Appendix 1.

[Pallaske-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h Michael Pallaske (2006): The late notification of DCOIT for PT 8, an important contribution to the development of full organic wood preservatives for use class 4 ( Memento from September 27, 2007 in the Internet Archive ) (PDF; 71 kB) .

[2] Template: CL Inventory / not harmonized There is not yet a harmonized classification for this substance . A labeling of 4,5-dichloro-2-octyl-2H-isothiazol-3-one in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on June 21, 2016, is reproduced from a self-classification by the distributor .

[3] Rohm & Haas: SEA-NINE, a broad spectrum marine antifouling agent for ship hull protection against slime

[4] Rohm & Haas: VINYZENE ™ IT 4081 DIDP - Antimicrobial Additives for Plastics

[5] Daniel Bürgi, Lars Knechtenhofer, Isabel Meier, Walter Giger : Biocides as micropollutants in wastewater and water: prioritization of biocidal active ingredients . Study on behalf of the FOEN and ERZ , Environmental Sciences Europe, 2009, 21, pp. 16–26. doi : 10.1007 / s12302-008-0032-2 .

[6] Regulation (EU) No. 437/2014 (PDF) of the Commission of April 29, 2014 on the approval of 4,5-dichloro-2-octyl-2H-isothiazol-3-one as an old active ingredient for use in biocidal products of the product type 21st

[7] 813.12 Ordinance on the placing on the market of and handling of biocidal products (Biocidal Products Ordinance, VBP) , Appendix 1.