Sodium Selenite

1300 INR

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Product Details:

Boiling point Not Defined (Decomposes)
HS Code 28429090
Melting Point 710 C
Storage Store in cool, dry place, tightly closed container, away from incompatible substances.
Molecular Weight 172.94 g/mol
Other Names Disodium selenite
Solubility Soluble in water
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Sodium Selenite Price And Quantity

Minimum Order Quantity 100 Kilograms
Price 1300 INR

Sodium Selenite Product Specifications

Smell Odorless
Chemical Name Sodium Selenite
Structural Formula Na2SeO3
Purity 99%
Shape Crystalline Powder
Poisonous Yes
Molecular Formula Na2SeO3
Ph Level 9.0 10.0 (1% solution)
Classification Inorganic Compound
EINECS No 231-191-2
Form Powder
Density 2.62 Gram per cubic centimeter(g/cm3)
Main Material Sodium Selenite
Boiling point Not Defined (Decomposes)
Melting Point 710 C
Standard Meets reagent grade specifications
Type Selenite
HS Code 28429090
Storage Store in cool, dry place, tightly closed container, away from incompatible substances.
Application Pharmaceuticals, Glass Manufacturing, Intermediate in Chemical Production
Molecular Weight 172.94 g/mol
Other Names Disodium selenite
Solubility Soluble in water

Sodium Selenite Trade Information

Payment Terms Cash in Advance (CID), Cash Advance (CA)
Supply Ability 500 Kilograms Ton Per Month
Delivery Time 1 Week
Sample Available Yes
Sample Policy Free samples are available
Packaging Details Bag
Main Export Market(s) Western Europe, Australia, South America, Middle East, Central America, Africa, Asia, Eastern Europe, North America
Main Domestic Market All India

Product Description

Sodium selenite is the inorganic compound with the formula Na2SeO3. This salt is a colourless solid. The pentahydrate Na2SeO3(H2O)5 is the most common water-soluble selenium compound. Sodium selenite is mainly used in the manufacture of colorless glass. The pink color imparted by these selenites cancels out the green color imparted by iron impurities.

Because selenium is an essential element, sodium selenite is an ingredient in some food supplements. The US Food and Drug Administration approved a selenium supplement to animal diets, however the most common form is sodium selenite for pet foods.

Sodium Selenite Pentahydrate BP Grade: Ph Eur Na2SeO3,5H2O -- 263.0 -- 26970-82-1

DEFINITION: Content: 98.5 per cent to 101.5 per cent.

IDENTIFICATION

Dissolve 50 mg in 5 ml of a mixture of equal volumes of dilute hydrochloric acid and water and heat to boiling. Add 0.05 g of ascorbic acid; a red precipitate is formed which may become black.
Dissolve 50 mg in a mixture of 1 ml of dilute hydrochloric acid and 5 ml of water. Add 1 ml of barium chloride solution; the solution remains clear.
It gives reaction of sodium.
It complies with the limits of the assay.

TESTS: Solution S: Dissolve 5.0 g in carbon dioxide-free water and dilute to 50.0 ml with the same solvent.
Appearance of solution: Solution S is clear and colourless.
Chlorides: Maximum 50 ppm.
Sulphates and selenates: Maximum 300 ppm (determined as sulphates).
Iron: Maximum 50 ppm.

Sodium Selenite Anhydrous is also offered as per below mentioned specifications:

EINECS: 233-267-9
Molecular Weight : 172.94
Sensitive: Hygroscopic
Appearance: White to off white Crystalline Powde
Water Solubility: 950 g/L (20° C)
Selenium Content: 45%
LOD (By IR): 0.5% max., at 100° C for 1 hr.
Iron as Fe: 0.005% max.
Sulphate as SO4: 0.2% max.
Assay: 98.5% min. ( on dry basis )

Versatile Industrial Applications

Sodium Selenite serves key roles in industries such as pharmaceuticals and glass manufacturing, thanks to its reactivity and purity. Its use as a chemical intermediate aids in the synthesis of various compounds, making it indispensable to modern chemical processes. The products stability and solubility further enhance its suitability for specialized industrial environments.

Safe Handling and Storage Recommendations

Safety is essential when dealing with sodium selenite. Users should store the compound in tightly closed containers, placed in cool and dry locations away from incompatible substances. Proper precautions minimize occupational exposure, as the substance is toxic if ingested or inhaled and decomposes to yield hazardous fumes at high temperatures.

FAQs of Sodium Selenite:

Q: How should sodium selenite be stored for optimal stability?

A: Sodium selenite remains stable when stored in a cool, dry place in a tightly closed container, away from incompatible materials and direct sunlight. This helps preserve its quality and extends the shelf life to two years.

Q: What industrial processes commonly use sodium selenite?

A: Sodium selenite is widely incorporated into pharmaceuticals, glass manufacturing, and as an intermediate in chemical production due to its purity, reactivity, and water solubility.

Q: When does sodium selenite decompose, and what are the hazards involved?

A: Sodium selenite thermally decomposes at elevated temperatures (melting point: 710C) and releases toxic fumes of selenium and sodium oxide. It is crucial to prevent exposure to high heat and ensure adequate ventilation in processing areas.

Q: Where is sodium selenite packaged and distributed, and in what quantities?

A: Manufacturers, suppliers, and exporters in India offer sodium selenite in standard 25 kg fiber drums but customized packaging options are available to meet specific client requirements.

Q: What safety measures are required during the handling and use of sodium selenite?

A: Due to its toxic nature, sodium selenite should be handled with gloves and protective equipment in ventilated spaces. Occupational exposure must not exceed 0.2 mg/m, and inhalation or ingestion should be avoided.

Q: What are the benefits of using reagent grade sodium selenite in chemical synthesis?

A: Reagent grade sodium selenite meets strict quality specifications, ensuring consistency and reliability. Its high purity and stability contribute to successful outcomes in sensitive pharmaceutical and industrial formulations.

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