ChemicalBook CAS DataBase List 10102-18-8

10102-18-8

Name	Sodium selenite
CAS	10102-18-8
EINECS(EC#)	233-267-9
Molecular Formula	Na2O3Se
MDL Number	MFCD00003489
Molecular Weight	172.94
MOL File	10102-18-8.mol

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

Chemical Properties

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.
solubility	Water (Slightly)
form	powder
color	white
Odor	Odorless
biological source	synthetic (inorganic)
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
Cosmetics Ingredients Functions	NOT REPORTED
InChI	1S/2Na.H2O3Se/c;;1-4(2)3/h;;(H2,1,2,3)/q2*+1;/p-2
InChIKey	BVTBRVFYZUCAKH-UHFFFAOYSA-L
SMILES	[Na+].[Na+].[O-][Se]([O-])=O
CAS DataBase Reference	10102-18-8(CAS DataBase Reference)
EPA Substance Registry System	10102-18-8(EPA Substance)

Safety Data

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	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 . less more
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 . less more
RIDADR	UN 2630 6.1/PG 1
WGK Germany	2
RTECS	VS7350000
TSCA	Yes
REACH Registrations	Active
HazardClass	6.1
PackingGroup	I
HS Code	28429010
Storage Class	6.1A - Combustible acute toxic Cat. 1 and 2 very toxic hazardous materials
Hazard Classifications	Acute Tox. 2 Inhalation Acute Tox. 2 Oral Aquatic Chronic 2 Eye Irrit. 2 Skin Irrit. 2 Skin Sens. 1
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. less more
Hazardous Substances Data	10102-18-8(Hazardous Substances Data)
Toxicity	LD50 orally in rats: 7 mg/kg (Cummins, Kimura) less more

Raw materials And Preparation Products

Hazard Information

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].

Toxics Screening Level

The ITSL for selenium and inorganic selenium compounds is 2 μg/m3 based on an 8-hour averaging time.

Material Safety Data Sheet(MSDS)

Questions And Answer

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.;

Spectrum Detail

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10102-18-8

Chemical Properties

Safety Data

Raw materials And Preparation Products

Raw materials

Preparation Products

Hazard Information

General Description

Reactivity Profile

Air & Water Reactions

Hazard

Health Hazard

Potential Exposure

Fire Hazard

First aid

Shipping

Incompatibilities

Waste Disposal

Uses

Uses

Uses

Definition

Flammability and Explosibility

Purification Methods

Toxics Screening Level

Material Safety Data Sheet(MSDS)

Questions And Answer

Chemical Properties

Application

Preparation

Category

Toxicity grading

Acute toxicity

Flammability Hazardous Characteristics

Storage and Transport

Extinguishing agent

Occupational standards

Spectrum Detail

Well-known Reagent Company Product Information