Dicopper monoselenide
[CAS# 20405-64-5]

Identification

• Classification: Inorganic chemical industry >> Inorganic salt >> Chalcogenide
• Name: Dicopper monoselenide
• Synonyms: Dicopper selenide; Cuprous selenide
• Molecular Formula: Cu₂Se
• Molecular Weight: 206.05
• CAS Registry Number: 20405-64-5
• EC Number: 243-796-7

Safety Data

• Hazard Symbols: T;N
• Risk Statements: R23/25;R33;R50/53
• Safety Statements: S20/21;S28;S45;S60;S61

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Acute toxicity	Acute Tox.	3	H301
Acute hazardous to the aquatic environment	Aquatic Acute	1	H400
Acute toxicity	Acute Tox.	3	H331
Specific target organ toxicity - repeated exposure	STOT RE	2	H373
Chronic hazardous to the aquatic environment	Aquatic Chronic	1	H410

• Transport Information: UN 3283 6.1 / PGII