General Information
Version
8
Revision date
2026-07-23
Product name
Chlorosulfonic acid
CAS No.
7790-94-5
supplier name
Avocado Research Chemicals Ltd
Emergency telephone
001-201-796-7100, +32 14 57 52 99, 001-800-424-9300, 001-703-527-3887
Icons in SDS
Company Information
company name
Avocado Research Chemicals Ltd
e-mail address of the competent person responsible for the Safety Data Sheet
begel.sdsdesk@thermofisher.com
GHS Information
Signal word
Danger
Hazard Codes
Hazard statements (CLP)
H314, H335, H401
Hazard statements
Code
Statements
H314
Causes severe skin burns and eye damage
Section 2
SECTION 2: Hazards identification
Physical State
Appearance/Odor
Liquid No information available pungent Emergency Overview Reacts violently with water. Moisture sensitive. Causes severe skin burns and eye damage. Toxic to aquatic life. May cause respiratory irritation Classification of the substance or mixture Skin Corrosion/Irritation Category 1 A Serious Eye Damage/Eye Irritation Category 1 Specific target organ toxicity - (single exposure) Category 3 Acute aquatic toxicity Category 2 Label Elements
Signal word
Danger Hazard Statements H314 - Causes severe skin burns and eye damage H401 - Toxic to aquatic life H335 - May cause respiratory irritation
Prevention
P264 - Wash face, hands and any exposed skin thoroughly after handling P271 - Use only outdoors or in a well-ventilated area P280 - Wear protective gloves/protective clothing/eye protection/face protection
Response
P301 + P330 + P331 - IF SWALLOWED: rinse mouth. Do NOT induce vomiting P303 + P361 + P353 - IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower P304 + P340 - IF INHALED: Remove person to fresh air and keep comfortable for breathing P305 + P351 + P338 - IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing P310 - Immediately call a POISON CENTER or doctor P363 - Wash contaminated clothing before reuse
Storage
P403 + P233 - Store in a well-ventilated place. Keep container tightly closed
Disposal
P501 - Dispose of contents/ container to an approved waste disposal plant
Other physicochemical hazards
Reacts violently with water.
Health hazards
Corrosive. Causes skin and eye burns. Causes serious eye damage. May cause respiratory irritation.
Environmental hazards
Reacts violently with water. Toxic to aquatic life. Is not likely mobile in the environment. Reacts violently with water. This product does not contain any known or suspected endocrine disruptors. Toxic to terrestrial vertebrates.
2.1 Classification of the substance or mixture
Classification of the substance or mixture Skin Corrosion/Irritation Category 1 A Serious Eye Damage/Eye Irritation Category 1 Specific target organ toxicity - (single exposure) Category 3 Acute aquatic toxicity
