General Information
Version
5
Revision date
2026-07-27
Product name
Selenium dichloride oxide
Product Synonyms
Seleninyl chloride
CAS No.
7791-23-3
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)
H301+H331, H373, H410
Hazard statements
Code
Statements
H301+H331
Toxic if swallowed or if inhaled
Section 2
SECTION 2: Hazards identification
Physical State
Appearance/Odor
Liquid Yellow Slight chlorine Emergency Overview Toxic if swallowed. Toxic if inhaled. Harmful to aquatic life. Very toxic to aquatic life with long lasting effects. May cause damage to organs through prolonged or repeated exposure. Contact with water liberates toxic gas. Moisture sensitive. Classification of the substance or mixture Acute Oral Toxicity Category 3 Acute Inhalation Toxicity - Vapors Category 3 Specific target organ toxicity - (repeated exposure) Category 2 Acute aquatic toxicity Category 1 Category 3 Chronic aquatic toxicity Category 1 Label Elements
Signal word
Danger Hazard Statements H410 - Very toxic to aquatic life with long lasting effects H373 - May cause damage to organs through prolonged or repeated exposure H301 + H331 - Toxic if swallowed or if inhaled
Prevention
P260 - Do not breathe dust/fume/gas/mist/vapors/spray P264 - Wash face, hands and any exposed skin thoroughly after handling P270 - Do not eat, drink or smoke when using this product
Response
P301 + P310 - IF SWALLOWED: Immediately call a POISON CENTER or doctor P314 - Get medical advice/attention if you feel unwell P330 - Rinse mouth
Storage
P405 - Store locked up
Disposal
P501 - Dispose of contents/ container to an approved waste disposal plant
Other physicochemical hazards
None identified.
Health hazards
Toxic if swallowed. Toxic if inhaled. Harmful if inhaled. May cause damage to organs through prolonged or repeated exposure.
Environmental hazards
Harmful to aquatic life. Very toxic to aquatic life with long lasting effects. Will likely be mobile in the environment due to its water solubility. The product is water soluble, and may spread in water systems. This product does not contain any known or suspected endocrine disruptors.
2.1 Classification of the substance or mixture
Acute Oral Toxicity Category 3 Acute Inhalation Toxicity - Vapors Category 3 Specific target organ toxicity - (repeated exposure) Category 2 Acute aquatic toxicity Category 1 Category 3 Chronic aquatic toxicity
