Note: Ingredients listed on restricted chemical lists
EC/CAS
7782-49-2
Name of the chemical
Selenium
Concentration
>= 90 - <= 100
General Information
Version
6.16
Revision date
2026-07-10
Product name
Selenium
CAS No.
7782-49-2
1.2.1 Relevant identified uses
Laboratory chemicals, Synthesis of substances
1.2.2. Uses advised against
The product is being supplied under the TSCA R&D Exemption
Emergency telephone
800-424-9300, +1-703- 527-3887
Icons in SDS
Company Information
company name
Sigma-Aldrich Inc
GHS Information
Signal word
Danger
Hazard Codes
Hazard statements (CLP)
H301+H331, H373, H413
Hazard statements
Code
Statements
H301+H331
Toxic if swallowed or if inhaled
Section 2
SECTION 2: Hazards identification
Long term hazards
Category 4 aquatic hazard
Other hazards
None known
Signal word
Danger
Hazard statements
H301 + H331 Toxic if swallowed or if inhaled. H373 May cause damage to organs through prolonged or repeated exposure. H413 May cause long lasting harmful effects to aquatic life.
Prevention
P260 Do not breathe dust. P264 Wash skin thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P273 Avoid release to the environment.
Response
P301 + P310 + P330 IF SWALLOWED: Immediately call a POISON CENTER/ doctor. Rinse mouth. P304 + P340 + P311 IF INHALED: Remove person to fresh air and keep comfortable for breathing. Call a POISON CENTER/ doctor. P314 Get medical advice/ attention if you feel unwell.
Storage
P403 + P233 Store in a well-ventilated place. Keep container tightly closed. P405 Store locked up.
Disposal
P501 Dispose of contents/ container to an approved waste disposal plant.
2.1 Classification of the substance or mixture
(29 CFR 1910.1200) Hazards for the product as supplied Acute toxicity (Oral) : Category 3 Acute toxicity : Category 3 (Inhalation) Specific target organ : Category 2 toxicity - repeated exposure Long-term (chronic) : Category 4 aquatic hazard Other hazards
