Selenious acid, Sodium Selenite N Sodium Selenate Manufacturer

Annie Chemie P Ltd, is a company at Dahej in Gujarat, India. It is a manufacturer exporter of Selenious acid USP Grade, Sodium Selenite BP Ph Eur Grade & Sodium Selenate and oil field shale gas fracking or hydraulic fracturing chemicals and speciality chemicals and it has substantial exports to countries like USA, Canada, UK, Europe, UAE, Nigeria, Algeria, Turkey, Mexico, Brazil, Chile, Argentina, Australia, Kuwait, Dubai etc. We have developed encapsulated guar gel breaker based on coated ammonium persulfate, potassium persulfate, sodium persulfate, potassium peroxymonopersulfate, sodium bromate etc. We also supply other coated or encapsulated products like citric acid, guar crosslinkers other shale gas frac related products like diverting agent, KCl-substitute or clay-stabilizer, corossion inhibitors, scale inhibitor, bio-guard and several speciality chemicals.

Selenious Acid USP Grade, Sodium Selenite BP Ph Eur Grade & Sodium Selenate Suppliers Exporters, Manufacturers

Selenious Acid
CAS Number: 7783-00-8, USP Grade Suppliers Exporters, Manufacturers
Selenious Acid Manufacturers Exporters

Selenious Acid USP Grade
H2SeO3 -- 128.97
Selenium dioxide, monohydrated.
Selenious acid CAS 7783-00-8

Selenious Acid contains not less than 93.0 percent and not more than 101.0 percent of H2SeO3.

Identification:
A: Dissolve about 50 mg in 5 mL of water, add about 100 mg of sodium bicarbonate, and mix: gas bubbles develop.
B: Dissolve about 50 mg in 5 mL of 0.1 N hydrochloric acid, and add about 50 mg of stannous chloride: a curdy tan-orange precipitate is formed.

Residue on ignition: not more than 1.0 mg, from 10.0 g (0.01%).
Insoluble matter: Dissolve 1 g in 5 mL of water: it dissolves completely and the solution is clear.
Selenate and sulfate: Dissolve about 0.5 g in 10 mL of water, add 0.1 mL of hydrochloric acid and 1 mL of barium chloride, and mix: no turbidity or precipitate is formed in 10 minutes.

Sodium Selenite
CAS Number: 26970-82-1, BP Ph Eur Grade Suppliers Exporters, Manufacturers
Sodium Selenite Manufacturers Exporters

Specifications of Sodium Selenite Pentahydrate BP Ph Eur Grade
Na2SeO3,5H2O -- 263.0 -- CAS 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.

Specifications of Sodium Selenate
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.

Selenious Acid USP Grade CAS Number 7783-00-8, Sodium Selenite BP Ph Eur Grade CAS Number 26970-82-1 & Sodium Selenate CAS Number 13410-01-0 Supplier Exporter, Manufacturer:

Annie Chemie P Ltd
Mumbai 4000010, INDIA
With Agents and offices in UAE, USA, Europe.

Exporters to USA, Canada, UK, Europe, UAE, Nigeria, Algeria, Turkey, Mexico, Brazil, Chile, Argentina, Australia, Dubai etc.