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EC number: 947-152-2 | CAS number: -
Observations in an acute inhalation toxicity rat study indicate exposure can lead to corneal opacity and eye irritation when exposed to an atmosphere containing the constituent Fluorosulfonyl difluoroacetyl fluoride in a gaseous form.
There are no experimental results related to skin corrosion in a standard test, but in an acute inhalation test performed with the fluorosulphoronyl difluoroacetyl fluoride in a gaseous form, erythema was observed in rats exposed at lethal concentration, and skin oedema has been observed on the ear skin of some rats, which may indicate irritating and/or corrosive effects.
Information from publications on chemical reactivity indicated that both forms (ring sultone and linear form) can react with water to form the acid form 2,2-difluoro-2-(fluorosulfonyl)acetic acid (CAS1717-59 -5) and hydrogen fluoride.
Information from publications on chemical reactivity indicated that both forms (ring sultone and linear form) can react with water to form the acid form 2,2-difluoro-2-(fluorosulfonyl)acetic acid (CAS 1717 -59 -5) and hydrogen fluoride.
2,2-difluoro-2-(fluorosulfonyl)acetic acid is reported to behave as a strong acid, and hydrogen fluoride is a known corrosive substance.
There are no experimental results according to standardised methods for skin or eye corrosion/irritation. However; based on the observed effects in the acute inhalation study and on the documented reactivity with water or moisture to form a carboxylic acid and hydrogen fluoride, as a default approach the reaction mass of difluoro(fluorosulphonyl)acetyl fluoride and 3,3,4,4-tetrafluoro-1,2-oxathietane 2,2-dioxide is considered as corrosive to skin, corrosive Subcat.1A, H314 and Eye Damage Cat.1, H318.
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