Sodium Selenate n Sodium Selenite Suppliers

Teappcm, is the several decades old manufacturer supplier exporter of High Purity Chemicals including Pharmaceutical Grade Excepients like IP BP JP USP Ph Eur FCC Food Grade ACS Reagent Grade of Chemicals in India USA UAE etc. It has several associated manufacturing facilities spread across the globe. Order quantities ranging from grams, killograms to container loads are given equal attention. The participating units have one or more of the certifications like Good Manufacturing Practice, Good Laboratory Practice, ISO-9001, ISO-22000, Halal & Kosher Cettification. We also have "REACH" Preregistration.

Sodium Selenate & Sodium Selenite Pentahydrate Anhydrous BP Oh Eur Suppliers Exporters

Sodium Selenite is different from Sodium Selenate and has a different CAS Number.

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

CHARACTERS
Appearance: White or almost white, crystalline powder, hygroscopic.
Solubility: Freely soluble in water, practically insoluble in ethanol (96 per cent).

IDENTIFICATION
A. 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.
B. 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.
C. It gives reaction of sodium.
D. 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.
pH: 9.8 to 10.8 for solution S.
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.
CAS NO.: 10102-18-8
Molecular Formula: Na2SeO4
Molecular Weight: 172.94
EINECS: 233-267-9
MP: 350° C
Sensitive: Hygroscopic
Appearance: White to off white Crystalline Powder
Water Solubility: 950 g/L (20C)
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).

Specifications of Sodium Selenate
Sodium Selenate is different from Sodium Selenite and has a different CAS Number.
Appearance: White to off-white or grayish crystalline powder.
Assay: 98% to 100.5%
Loss on drying: 0.5% maximum
Selenium Content: 41 % minimum
Selenite Content: 1% maximum
Iron: 50 ppm maximum
Lead: 50 ppm maximum
Chloride (Cl): 100 ppm maximum
Sulfate (SO4): 100 ppm maximum

Sodium Selenate & Sodium Selenite Suppliers:

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