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Sodium selenite
Sodium selenite
- CAS:
- 10102-18-8
- MF:
- Na2O3Se
- MW:
- 172.94
Properties
- Melting point:
- >350 °C (lit.)
- Density
- 3.1[at 20℃]
- vapor pressure
- 0.133Pa at 20℃
- storage temp.
- Store at RT.
- solubility
- Water (Slightly)
- form
- powder
- color
- white
- Odor
- Odorless
- Water Solubility
- 950 g/L (20 ºC)
- Sensitive
- Hygroscopic
- Merck
- 14,8673
- Exposure limits
- ACGIH: TWA 0.2 mg/m3
NIOSH: IDLH 1 mg/m3; TWA 0.2 mg/m3
- InChIKey
- BVTBRVFYZUCAKH-UHFFFAOYSA-L
Safety Information
- Symbol(GHS)
GHS06,GHS09
- Signal word
- Danger
- Hazard statements
- H300+H330-H315-H317-H319-H411
- Precautionary statements
- P260-P273-P280-P302+P352-P304+P340+P310-P305+P351+P338
- Hazard Codes
- T+,N,Xi
- Risk Statements
- 23-28-31-43-51/53-36/37/38
- Safety Statements
- 28-36/37-45-61-28A-36-26
- RIDADR
- UN 2630 6.1/PG 1
- WGK Germany
- 2
- RTECS
- VS7350000
- TSCA
- Yes
- HazardClass
- 6.1
- PackingGroup
- I
- HS Code
- 28429010
- Toxicity
- LD50 orally in rats: 7 mg/kg (Cummins, Kimura)
Use
(1) Selenite reacts with sodium hydroxide to produce sodium selenite. Further refinement and addition of dilution agent to obtain the final product. (2) Selenium reacts with nitric acid to produce selenium oxide, which reacts with sodium hydroxide to produce sodium selenite. Followed drying and grinding to obtain the final product.
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