Note: Ingredients listed on restricted chemical lists
EC/CAS
231-791-2/7732-18-5
Name of the chemical
Water, distilled, conductivity or of similar purity H2O
Concentration
1
General Information
Revision date
2025-05-28
Product name
Methanesulfonic Acid
Emergency telephone
1-800-424-9300, 1-703-527-3887, 1-703-741-5970
Icons in SDS
Company Information
company name
Thermo Fisher Scientific
GHS Information
Signal word
DANGER
Hazard Codes
Hazard statements (CLP)
H290, H302, H312, H314, H335
Hazard statements
Code
Statements
H290
May be corrosive to metals
Section 2
SECTION 2: Hazards identification
GHS Classification GHS Classification
Signal word
DANGER Hazard pictograms
Health hazards
Acute oral toxicity Category 4 Acute dermal toxicity Category 4 Skin corrosion/irritation Category 1 B Serious eye damage/eye irritation Category 1 Specific target organ toxicity (STOT) – single exposure Category 3
Physical hazards
Substances/mixtures corrosive to metal GHS Physical Hazard Category Number Category 1
Environmental hazards
Not classified Hazard Statements H314 - Causes severe skin burns and eye damage H302 - Harmful if swallowed H312 - Harmful in contact with skin H335 - May cause respiratory irritation H290 - May be corrosive to metals
Prevention
P234 - Keep only in original container P264 - Wash hands thoroughly after handling P280 - Wear protective gloves/protective clothing/eye protection/face protection P261 - Avoid breathing dust/fume/gas/mist/vapors/spray P270 - Do not eat, drink or smoke when using this product P271 - Use only outdoors or in a well-ventilated area P260 - Do not breathe dust/fume/gas/mist/vapors/spray
Response
P303 + P361 + P353 - IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower P390 - Absorb spillage to prevent material damage P302 + P352 - IF ON SKIN: Wash with plenty of soap and water P305 + P351 + P338 - IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing DO NOT USE P304 + P340 - IF INHALED Remove victim to fresh air and keep at rest in a position comfortable for breathing P330 - Rinse mouth P312 - Call a POISON CENTER or doctor/physician if you feel unwell P301 + P312 - IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
Storage
P406 - Store in corrosion resistant container with a resistant inner liner P403 + P233 - Store in a well-ventilated place. Keep container tightly closed
Disposal
P501 - Dispose of contents/ container to an approved waste disposal plant
2.3 Other hazards
Not Applicable HMIS Health 3 Flammability 0 Reactivity 0
2.1 Classification of the substance or mixture
Signal Word DANGER Hazard pictograms Health hazards Acute oral toxicity Category 4 Acute dermal toxicity Category 4 Skin corrosion/irritation Category 1 B Serious eye damage/eye irritation Category 1 Specific target organ toxicity (STOT) – single exposure Category 3 Physical hazards GHS Physical Hazard Substances/mixtures corrosive to metal GHS Physical Hazard Category Number Category 1 Environmental hazards Not classified Hazard Statements H314 - Causes severe skin burns and eye damage H302 - Harmful if swallowed H312 - Harmful in contact with skin H335 - May cause respiratory irritation H290 - May be corrosive to metals