General Information
Version
7.4
Revision date
2026-09-24
Product name
Tetraethylammonium hydroxide solution
Emergency telephone
+44 20 3885 0382, +65 3163 8374, +55 11 4349 1359, +52 55 8526 4930, +1 703 527 3887
Icons in SDS
Company Information
company name
Merck Life Science AS
GHS Information
Signal word
Danger
Hazard Codes
Hazard statements (CLP)
H290, H302, H311, H314, H318, H370, H372
Hazard statements
Code
Statements
H290
May be corrosive to metals
Section 2
SECTION 2: Hazards identification
Regulation (EC) No. 1272/2008 Classification of the substance or mixture
Signal word
Danger Danger
Hazard statements
H290 May be corrosive to metals. H302 Harmful if swallowed. H311 Toxic in contact with skin. H314 Causes severe skin burns and eye damage. H370 Causes damage to organs (Central nervous system). H372 Causes damage to organs (thymus, Liver) through prolonged or repeated exposure in contact with skin. H311 Toxic in contact with skin. H370 Causes damage to organs. H372 Causes damage to organs through prolonged or repeated exposure in contact with skin. H314 Causes severe skin burns and eye damage.
Precautionary statements
P234 Keep only in original packaging. P280 Wear protective gloves/ protective clothing/ eye protection/ face protection. P280 Wear protective gloves/ protective clothing/ eye protection/ face protection. P303 + P361 + P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water. P304 + P340 + P310 IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/ doctor. P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Response
P301 + P312 IF SWALLOWED: Call a POISON CENTER/ doctor if you feel unwell. P303 + P361 + P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water. P304 + P340 + P310 IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/ doctor. P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Hazardous Ingredients
tetraethylammonium hydroxide Reduced Labelling (<= 125 ml)
Supplemental label elements
none
2.3 Other hazards
This substance/mixture contains no components considered to be either persistent, bioaccumulative and toxic (PBT), or very persistent and very bioaccumulative (vPvB) at levels of 0.1% or higher.
ECOLOGICAL INFORMATION
The substance/mixture does not contain components considered to have endocrine disrupting properties according to REACH Article 57(f) or Commission Delegated regulation (EU) 2017/2100 or Commission Regulation (EU) 2018/605 at levels of 0.1% or higher.
TOXICOLOGICAL INFORMATION
The substance/mixture does not contain components considered to have endocrine disrupting properties according to REACH Article 57(f) or Commission Delegated regulation (EU) 2017/2100 or Commission Regulation (EU) 2018/605 at levels of 0.1% or higher.
2.1 Classification of the substance or mixture
Classification (REGULATION (EC) No 1272/2008) Corrosive to metals, Category 1 H290: May be corrosive to metals. Acute toxicity, Category 4 H302: Harmful if swallowed. Acute toxicity, Category 3 H311: Toxic in contact with skin. Skin corrosion, Sub-category 1B H314: Causes severe skin burns and eye damage. Serious eye damage, Category 1 H318: Causes serious eye damage. Specific target organ toxicity - H370: Causes damage to organs. single exposure, Category 1, Central nervous system Specific target organ toxicity - H372: Causes damage to organs through repeated exposure, Category 1, prolonged or repeated exposure in contact thymus, Liver with skin.