10102-20-2

Basic information

• Product Name: SODIUM TELLURITE
• Synonyms: sodiumtellurate(iv;sodiumtellurate(iv);telluricacid(h2teo3),disodiumsalt;Telluricacid,disodiumsalt;Tellurous acid，disodium salt;SODIUM TELLURITE;SODIUM TELLURITE (IV);disodium trioxotellurate
• CAS NO: 10102-20-2
• Molecular Formula: Na2O3Te
• Molecular Weight: 221.57774
• EINECS: 233-268-4
• Product Categories: Metal and Ceramic Science;Salts;Sodium Salts
• Mol File: 10102-20-2.mol
• Article Data: 0

Chemical Properties

• Boiling Point: °Cat760mmHg
• Flash Point: °C
• Appearance: White/Powder
• Density: g/cm³
• Water Solubility: Soluble in water.
• Stability: Stable. Incompatible with strong oxidizing agents.
• Merck: 14,8685
• CAS DataBase Reference: SODIUM TELLURITE(CAS DataBase Reference)
• NIST Chemistry Reference: SODIUM TELLURITE(10102-20-2)
• EPA Substance Registry System: SODIUM TELLURITE(10102-20-2)

Safety Data

• Hazard Codes: T
• Statements: 23/24/25
• Safety Statements: 22-36/37/39-45
• RIDADR: UN 3288 6.1/PG 2
• WGK Germany: 3
• RTECS: WY2450000
• TSCA: Yes
• HazardClass: 6.1
• PackingGroup: II
• Hazardous Substances Data: 10102-20-2(Hazardous Substances Data)

Usage

Description

Sodium tellurite, a white crystalline solid, is a chemical compound with the formula Na2TeO3. It is soluble in water and is used in various applications across different industries, including bacteriology, medicine, and metallurgy.

Uses

Used in Bacteriology and Medicine:
Sodium tellurite is used as a growth medium for bacteria in microbiology. It is also employed as an effector towards the thyroid hormone system due to its similarity to selenium. Tellurium accumulates in the thyroid gland and influences the zinc thyroid level, making it a potential candidate for research in endocrinology.
Used in Metallurgy:
Sodium tellurite(IV) acts as an intermediate in the extraction of tellurium. It is used to make corrosion-resistant electroplated nickel, adding a bluish coating to iron, steel, and aluminum. This application highlights its importance in the development of advanced materials with improved properties.

Air & Water Reactions

Water soluble.

Reactivity Profile

SODIUM TELLURITE is a weak reducing agent.

Hazard

Toxic by ingestion.

Health Hazard

The material is both an oral and dermal toxic hazard. The material is toxic by ingestion. Oral ingestion of tellurium compounds is generally regarded as extremely toxic. The probable oral lethal dose is 5-50 mg/kg or between 7 drops and 1 teaspoonful for a 70 kg (150 pound) person. Tellurium compounds are regarded as super toxic for skin exposures.

Fire Hazard

When heated to decomposition, SODIUM TELLURITE emits toxic fumes of tellurium and sodium monoxide.

Safety Profile

Human poison by ingestion and parenteral routes. Experimental poison by ingestion, intravenous, and intraperitoneal routes. Human systemic effects by ingestion: coma; dyspnea; nausea or vomiting. Human mutation data reported. When heated to decomposition it emits toxic fumes of Te and Na2O. See also TELLURIUM.

Potential Exposure

Used in bacteriology and medicine. Formerly used as pesticide.

Shipping

UN3284 Tellurium compound, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required. UN2811 Toxic solids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required.

Incompatibilities

A weak reducing agent. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides, cadmium, halogens. Reaction with oxidizers may generate heat and products that may be flammable, combustible, or otherwise reactive.

InChI:InChI=1/2Na.O3Te/c;;1-4(2)3/q2*+1;-2