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
N/A
General Information
Version
11
Revision date
2025-10-01
Product name
Tetramethylammonium hydroxide, 25% w/w aqueous solution
Product Synonyms
N,N,N-Trimethylmethanaminium hydroxide
Emergency telephone
001-800-227-6701, +32 14 57 52 11, 001-201-796-7100, +32 14 57 52 99, 001-800-424-9300, 001-703-527-3887, +41-44 251 51 51, +41-43 508 20 11, 01 809 2166, +356 2395 2000, +357 2240 5611
Icons in SDS
Company Information
company name
Thermo Fisher (Kandel) GmbH
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)
H300+H310, H314, H370, H372, H411
Hazard statements
Code
Statements
H300+H310
Fatal if swallowed or in contact with skin
Section 2
SECTION 2: Hazards identification
Physical hazards
Based on available data, the classification criteria are not met
Health hazards
Acute oral toxicity Category 2 (H300) Acute dermal toxicity Category 1 (H310) Skin Corrosion/Irritation Category 1 (H314) B Serious Eye Damage/Eye Irritation Category 1 (H318) Specific target organ toxicity - (single exposure) Category 1 (H370) Specific target organ toxicity - (repeated exposure) Category 1 (H372)
Environmental hazards
Chronic aquatic toxicity Category 2 (H411)
Hazard statements
see section 16 H314 - Causes severe skin burns and eye damage H370 - Causes damage to organs H372 - Causes damage to organs through prolonged or repeated exposure H411 - Toxic to aquatic life with long lasting effects H300 + H310 - Fatal if swallowed or in contact with skin
Signal word
Danger
Precautionary statements
P310 - Immediately call a POISON CENTER or doctor/physician P361 + P364 - Take off immediately all contaminated clothing and wash it before reuse P280 - Wear protective gloves/protective clothing/eye protection/face protection 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 P305 + P351 + P338 - IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing
2.3 Other hazards
This product does not contain any known or suspected endocrine disruptors
2.1 Classification of the substance or mixture
2.1. Classification of the substance or mixture CLP Classification - Regulation (EC) No 1272/2008 Physical hazards Based on available data, the classification criteria are not met Health hazards Acute oral toxicity Category 2 (H300) Acute dermal toxicity Category 1 (H310) Skin Corrosion/Irritation Category 1 (H314) B Serious Eye Damage/Eye Irritation Category 1 (H318) Specific target organ toxicity - (single exposure) Category 1 (H370) Specific target organ toxicity - (repeated exposure) Category 1 (H372) Environmental hazards Chronic aquatic toxicity Category 2 (H411) Full text of Hazard Statements: see section 16
