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EC number: 232-245-6
CAS number: 7791-25-5
OECD SIDS on Sulfuryl chloride (2002):
Sulfuryl chloride reacts with water completely, forming sulfuric and
hydrochloric acid, thus sulfuryl chloride itself indicates no hazard for
the aquatic environment.
The hydrolysis products sulfuric and hydrochloric acid have been tested
with aquatic species. Sulfuric and hydrochloric acid cause a pH
displacement in water. It was the resulting pH that determined the
impact on aquatic life as shown with buffered test substance solution.
Thus toxic effects are not due to substance inherent properties but a
function of the pH [OECD-SIDS on Sulfuric Acid (2001) and Hydrochloric
Acid, (2002)]. Regarding natural systems, the impact of dissociated
acids depends on the buffer capacity of the system. Buffer function is
attributed to humic substances, alkaline earth carbonates, clay
minerals, silicates, as well as sesquioxides.
Theoretical pH-values of sulfuric acid or hydrochloric acid in neutral
water (pH = 7) with no buffer (e.g. dechlorinated tap water):
Natural waters, as well as reconstituted waters for testing purposes,
stipulated within the OECD test guidelines, are normally composed of
substances serving as buffers. However natural waters in boreal areas
with subsurfaces consisting of granite or gneiss have low buffer
capacities and are therefore susceptible to acidification.
The tolerance of water organisms towards pH margin and variation is
Recommended pH-values at OECD guidelines for testing issues are:
fish: 6.0 to 8.5 is preferable
daphnia: within the range of 6 to 9
algae: appr. 8
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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