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Sodium selenite

Sodium Selenite CAS No. 10102-18-8 also known as a Disodium salt of Selenious Acid is a white to off white solid powder. It has the Mol. Formula Na2SeO3, Mol. Wt.: 172.94 gms/mole,. with Selenium having (+4 )oxidation state . It is highly soluble in water, solubility in water : about 85 gms /100ml @ 20°c., but not soluble in ethanol. It is prepared by evaporation of aqueous solution of Sodium Hydroxide and Selenious Acid .


Sodium selenite contains Selenium, an essential trace element for animals, domesticated birds. Selenium is one of the most essential micro nutrient for overall development and the health of animals. The deficiency of Selenium in animals, domesticated birds results into various diseases affecting their health and reproductive performance ,or efficiency of egg production. Selenium is available in inorganic and also in its organic form . The inorganic form includes elemental selenium , Sodium selenite , Sodium selenate , etc. and organic form such as selenomethionines .


Sodium selenite serves as the cheapest source of Selenium in inorganic form, that acts as an effective micro nutritional supplement when added to poultry feed in micro amounts to enhance egg production and its quality and for increasing the body weight of the broiler. It is used in the animal feeds as a micro nutritional additive as per the currently authorized maximum contents of total selenium in the complete feed and as per the permissible tolerable limits.


The information given above is based on our current knowledge and should not be considered as an intention of our Company to provide any medical information or as an advice for animal specific treatment. For any medical attention for your animals, livestock , we advise our customers to consult a Veterinarian/ Veterinary Doctor and act as per his advice.


Specifications - Sodium Selenite
Methyl Iodide Producers
Product Sodium Selenite
CAS No. [10102-18-8]
Molecular formula Na2SeO3
Molecular weight 172.94
Description White to off white crystalline powder..
Iron Max. 0.005 %
Sulphate Max. 0. 20%
Loss on drying Max. 0.50%
Selenium Min. 45.00%
Assay Min. 98.50%

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