| Identification | More | [Name]
Sodium selenite | [CAS]
10102-18-8 | [Synonyms]
Disodium selenite
SODIUM SELENITE
disodiumseleniumtrioxide
natriumselenit
seleniousacid(h2seo3),disodiumsalt
Seleniousacid,disodiumsalt
SodiumSelenitanhydrous
Sodiumselenite(H2O3Se.2Na)
Sodiumselenite,anhydrous
SODIUM SELENITE SOL. 45 %
SODIUM SELENITE CELL CULTURE TESTED
SODIUM SELENITE 99.999%
SODIUM SELENITE FOR THE GLASS INDUSTRY
SODIUM SELENITE GAMMA-IRRADIATED CELL*CU LTURE TESTE
SodiumSeleniteGr(Anhydrous)
Sodium selenite, 44-46% Se, anhydrous
SODIUM SELENITE, 95% ANHYDROUS
SODIUM SELENITE, ANHYDROUS REAGENT
Sodiumselenite,99%
SODIUMSELENITE,POWDER | [EINECS(EC#)]
233-267-9 | [Molecular Formula]
Na2O3Se | [MDL Number]
MFCD00003489 | [Molecular Weight]
172.94 | [MOL File]
10102-18-8.mol |
| Chemical Properties | Back Directory | [Appearance]
Sodium selenite is a white crystalline substance. | [Melting point ]
>350 °C (lit.) | [density ]
3.1[at 20℃] | [vapor pressure ]
0.133Pa at 20℃ | [storage temp. ]
Store at RT. | [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 | [CAS DataBase Reference]
10102-18-8(CAS DataBase Reference) | [EPA Substance Registry System]
10102-18-8(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
T+,N,Xi | [Risk Statements ]
R23:Toxic by inhalation.
R28:Very Toxic if swallowed.
R31:Contact with acids liberates toxic gas.
R43:May cause sensitization by skin contact.
R51/53:Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S28:After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) .
S36/37:Wear suitable protective clothing and gloves .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S36:Wear suitable protective clothing .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . | [RIDADR ]
UN 2630 6.1/PG 1
| [WGK Germany ]
2
| [RTECS ]
VS7350000
| [TSCA ]
Yes | [HazardClass ]
6.1 | [PackingGroup ]
I | [HS Code ]
28429010 | [Safety Profile]
Poison by ingestion, intraperitoneal, intravenous, subcutaneous, intracervical, parenteral, and intramuscular routes. Experimental teratogenic and reproductive effects. Questionable carcinogen. Human mutation data reported. When heated to decomposition it emits toxic fumes of Se and Na2O. See also SELENIUM COMPOUNDS. | [Hazardous Substances Data]
10102-18-8(Hazardous Substances Data) | [Toxicity]
LD50 orally in rats: 7 mg/kg (Cummins, Kimura) |
| Hazard Information | Back Directory | [General Description]
A white colored crystalline solid. Soluble in water and more dense than water. Contact may irritate skin, eyes and mucous membranes. Toxic by ingestion, inhalation and skin absorption. | [Reactivity Profile]
SODIUM SELENITE(10102-18-8) is incompatible with strong acids. | [Air & Water Reactions]
Soluble in water. | [Hazard]
Toxic by ingestion.
| [Health Hazard]
Toxic by ingestion. In humans, a concentration of 5 ppm in food or 0.5 ppm in milk or water has been estimated to be dangerous. Elemental selenium has low acute systemic toxicity, but dust or fumes can cause serious irritation of the respiratory tract. | [Potential Exposure]
Sodium selenite is used in glass manufacturing and as an alkaloidal reagent; for removing green color from glass during its manufacture; alkaloidal reagent; reagent in bacteriology; testing germination of seeds; decorating porcelain; as a livestock feed additive. | [Fire Hazard]
May burn but will not ignite readily. When heated to decomposition, may emit toxic fumes of selenium and sodium oxide. Stable in air. | [First aid]
If this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, get medical attention. Give large quantities of water and induce vomiting. Do not make an unconscious person vomit. Wear protective gloves when inducing vomiting. Medical observation is recommended for 24 to 48 hours after breathing overexposure, as pulmonary edema may be delayed. As first aid for pulmonary edema, a doctor or authorized paramedic may consider administering a drug or other inhalation therapy
| [Shipping]
UN2630 Selenates or Selenites, Hazard Class: 6.1; Labels: 6.1-Poisonous materials. | [Incompatibilities]
The aqueous solution is a medium strong base. Reacts with water, strong acids; hot surfaces; causing decomposition and a toxic hazard. | [Waste Disposal]
Liquid or solid: make a strongly acidic solution using hydrochloric acid. Slowly add sodium sulfite to the cold solution. Stir mixture producing sulfur dioxide. Heat, forming dark-gray selenium and black tellurium. Let stand overnight. Filter and dry. Ship to supplier. | [Uses]
Removing green color from glass during its manufacture; alkaloidal reagent. | [Uses]
Sodium selenite Na2O3Se is used in the production of red enamels and in the manufacture of clear red glass. | [Uses]
Used in reducing carcinogenesis with potency greater than selenomethionene | [Definition]
ChEBI: An inorganic sodium salt composed of sodium and selenite ions in a 2:1 ratio. | [Flammability and Explosibility]
Nonflammable | [Purification Methods]
Crystallise sodium selenite from a saturated aqueous solution where its solubility is 68% at 20o to give the pentahydrate salt. This yields the anhydrous salt on heating at 40o. [Fehér in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 431 1963]. |
| Questions And Answer | Back Directory | [Chemical Properties]
White colored crystalline solid. It could form pentahydrate. It is stable in air and could lose water in dry air. It is soluble in water, insoluble in ethanol. The theoretical selenium content is 45.7%. | [Application]
- Nutrition enhancer.
- Determination of alkaloids and preparation of red colored glass and glaze.
- Feed additive.
- Selenium is a component of glutathione peroxidase, maintains the function of the cell membrane through oxidation, and increase the production of protein lipid based endogenous antioxidants. It involves in the energy conversion, effects the metabolism, plays an important role in the fat emulsification and absorption, and in the absorption of a variety of vitamins. At the same time, it involves in the synthesis of coenzyme A and coenzyme Q, effects the function of other enzyme systems. It influences the metabolism of amino acids, protein synthesis, carbohydrate metabolism, and biological oxidation. The lack of selenium in livestock and poultry seriously affect the growth and reproduction.
| [Preparation]
(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. | [Category]
Toxic substance | [Toxicity grading]
Highly toxic | [Acute toxicity]
Oral-rat LD50: 7 mg/kg; oral-mouse LD50: 7.08 mg/kg. | [Flammability Hazardous Characteristics ]
Non-combustible; gives off toxic fume of selenium oxide in a fire. | [Storage and Transport]
Stored in a well-ventilated area, at low temperature, and dry condition; food should be stored and transported separately. | [Extinguishing agent]
Sand, water. | [Occupational standards]
TLV-TWA 0.2 mg (Selenium)/m3; STEL 0.3 mg (Selenium)/m3. |
|