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Basic Information
| CAS No.: | 26970-82-1 |
|---|---|
| Name: | Sodium selenite pentahydrate |
| Molecular Structure: | |
|
|
|
| Formula: | Na2SeO3.5H2O |
| Molecular Weight: | 263.01 |
| Synonyms: | Seleniousacid (H2SeO3), disodium salt, pentahydrate (8CI);Sodium selenite (Na2SeO3)pentahydrate;Selenious acid,disodium salt, pentahydrate (9CI); |
| EINECS: | 233-267-9 |
| Melting Point: | 710oC (1310 deg F) (decomposes) |
| Solubility: | soluble H2O; insoluble alcohol [HAW93] |
| Appearance: | White to off white crystalline powder |
| Hazard Symbols: |
 T+,  N,  T
|
| Risk Codes: | 23-28-31-43-51/53-50/53-33-23/25 |
| Safety: | 28-36/37-45-61-60-20/21 |
| Transport Information: | UN 2630 6.1/PG 1 |
| PSA: | 109.34000 |
| LogP: | -1.05870 |
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Sodium selenite pentahydrate
Chemistry
The MF of SODIUM SELENITE PENTAHYDRATE(26970-82-1): H10Na2O8Se
The MW of SODIUM SELENITE PENTAHYDRATE(26970-82-1): 263.01
EINECS: 233-267-9
IUPAC Name: disodium selenite pentahydrate
Categories: AntioxidantAnalytical Reagents for General Use;Biochemicals Found in Plants;Nutrition Research;Puriss p.a.;Q-S, Puriss p.a.
Synonyms: Selenious acid disodium salt pentahydrate;SODIUM SELENITE, HYDRATE;SODIUM SELENITE 5-HYDRATE;SODIUM SELENITE PENTAHYDRATE;SODIUM SELENITE, HYDRATE REAGENT;SodiumSeleniteGr;Sodium Selenite Pentahydrate, technical grade
The Structure of SODIUM SELENITE PENTAHYDRATE(26970-82-1):
Uses
SODIUM SELENITE PENTAHYDRATE(26970-82-1) is permitted use as food fortifier.
SODIUM SELENITE PENTAHYDRATE(26970-82-1) is used as reagent for testing alkaloids and seed germination. It is also used in the dispensing of red glass and glazes.
SODIUM SELENITE PENTAHYDRATE(26970-82-1) is used for the prevention and control of keshan disease, and has achieved remarkable effects. It is also used for livestock that directed towards the prevention of selenium deficiency.
SODIUM SELENITE PENTAHYDRATE(26970-82-1) is used as reagent for testing alkaloids and seed germination. It is also used in the dispensing of red glass and glazes.
SODIUM SELENITE PENTAHYDRATE(26970-82-1) is used for the prevention and control of keshan disease, and has achieved remarkable effects. It is also used for livestock that directed towards the prevention of selenium deficiency.
Toxicity Data With Reference
| 1. | ipr-mus LD50:9 mg/kg | COREAF Comptes Rendus Hebdomadaires des Seances de lAcademie des Sciences. 257 (1963),791. | ||
| 2. | ims-mus LD50:10,070 µg/kg | EXMDA4 International Congress Series - Excerpta Medica.(440)(1978),312. |
Consensus Reports
Selenium and its compounds are on the Community Right-To-Know List.
Safety Profile
Poison by intramuscular and intraperitoneal routes. An experimental teratogen. Experimental reproductive effects. When heated to decomposition it emits toxic fumes of Se and Na2O. See also SELENIUM COMPOUNDS.
Hazard Codes:
T+,T,
N,
Risk Statements: 23-28-31-43-51/53-50/53-33-23/25
23: Toxic by inhalation
28: Very Toxic if swallowed
31: Contact with acids liberates toxic gas
43: May cause sensitization by skin contact
51/53: Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment
50/53: Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment
33: Danger of cumulative effects
23/25: Toxic by inhalation and if swallowed
Safety Statements: 28-36/37-45-61-60-20/21
36/37: Wear suitable protective clothing and gloves
45: In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)
61: Avoid release to the environment. Refer to special instructions safety data sheet
60: This material and/or its container must be disposed of as hazardous waste
20/21: When using, do not eat, drink or smoke
RIDADR: UN 2630 6.1/PG 1
WGK Germany: 2
RTECS: VS7420000
F: 3: Hygroscopic.
Hazard Codes:
T+,T,N, Risk Statements: 23-28-31-43-51/53-50/53-33-23/25
23: Toxic by inhalation
28: Very Toxic if swallowed
31: Contact with acids liberates toxic gas
43: May cause sensitization by skin contact
51/53: Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment
50/53: Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment
33: Danger of cumulative effects
23/25: Toxic by inhalation and if swallowed
Safety Statements: 28-36/37-45-61-60-20/21
36/37: Wear suitable protective clothing and gloves
45: In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)
61: Avoid release to the environment. Refer to special instructions safety data sheet
60: This material and/or its container must be disposed of as hazardous waste
20/21: When using, do not eat, drink or smoke
RIDADR: UN 2630 6.1/PG 1
WGK Germany: 2
RTECS: VS7420000
F: 3: Hygroscopic.
Standards and Recommendations
OSHA PEL: TWA 0.2 mg(Se)/m3
ACGIH TLV: TWA 0.2 mg(Se)/m3
DFG MAK: 0.1 mg(Se)/m3
DOT Classification: 6.1; Label: Poison, Corrosive
ACGIH TLV: TWA 0.2 mg(Se)/m3
DFG MAK: 0.1 mg(Se)/m3
DOT Classification: 6.1; Label: Poison, Corrosive