Disodium monohydrogen arsenate
[CAS# 7778-43-0]

Identification

• Classification: Inorganic chemical industry >> Inorganic salt >> Metal oxide acid salt
• Name: Disodium monohydrogen arsenate
• Synonyms: Sodium arsenate dibasic; Sodium biarsenate
• Molecular Formula: Na₂HAsO₄
• Molecular Weight: 185.91
• CAS Registry Number: 7778-43-0
• EC Number: 231-902-4

Properties

• Density: 1.87 g/cm^3*
• Melting point: 57 ºC^*

^* "International Chemical Safety Cards" data were obtained from the National Institute for Occupational Safety and Health (US)

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Chronic hazardous to the aquatic environment	Aquatic Chronic	1	H410
Acute hazardous to the aquatic environment	Aquatic Acute	1	H400
Acute toxicity	Acute Tox.	3	H301
Acute toxicity	Acute Tox.	3	H331
Carcinogenicity	Carc.	1A	H350
Carcinogenicity	Carc.	1B	H350

• Hazardous Chemical?: Yes