Selenious acid monosodium salt
[CAS# 7782-82-3]

Identification

• Name: Selenious acid monosodium salt
• Synonyms: Sodium hydrogen selenite; Sodium hydrogen trioxoselenite; Sodium hydroselenite
• Molecular Formula: NaHSeO₃
• Molecular Weight: 150.96
• CAS Registry Number: 7782-82-3
• EC Number: 231-966-3

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Acute hazardous to the aquatic environment	Aquatic Acute	1	H400
Specific target organ toxicity - repeated exposure	STOT RE	2	H373
Chronic hazardous to the aquatic environment	Aquatic Chronic	1	H410
Acute toxicity	Acute Tox.	3	H331
Acute toxicity	Acute Tox.	3	H301
Skin irritation	Skin Irrit.	2	H315
Chronic hazardous to the aquatic environment	Aquatic Chronic	2	H411
Acute toxicity	Acute Tox.	2	H300
Acute toxicity	Acute Tox.	2	H330
Skin sensitization	Skin Sens.	1	H317
Eye irritation	Eye Irrit.	2	H319
Acute toxicity	Acute Tox.	1	H300
Acute toxicity	Acute Tox.	1	H330