Sodium Metabisulfite USP NF BP Ph Eur Reagent FCC manufacturers

Anmol Chemicals is the pioneer manufacturers of Sodium Metabisulfite or Sodium Metabisulphite USP NF BP Ph Eur Reagent FCC Food Grade, Pharmaceutical Excipients Chemicals in India. We offer Halal and Kosher Sodium Metabisulfite or Sodium Metabisulphite made in an ISO9001, ISO22000 (FSSC22000) cGMP and GLP certified facility. Our group has several manufacturing facilities spread across the world, supported by toll manufacturers and representatives in UAE, Europe, Africa, USA, China and has several associated manufacturing facilities spread across India. All the Information on Physics, Chemistry, Applications, Uses and Technology on Manufacture of Sodium Metabisulfite or Sodium Metabisulphite is in these pages.

The units have one or more of the certifications like FDA GMP, ISO 9001, ISO 22000, HACCP, REACH, Kosher & Halal

Sodium Metabisulfite or Sodium Metabisulphite USP NF BP Ph Eur Reagent FCC Food Grade Manufacturers Exporters, CAS Number 7681-57-4

Sodium Metabisulfite USP NF Specifications
Na2S2O5 -- 190.11
Disulfurous acid, disodium salt.
Disodium pyrosulfite CAS 7681-57-4

Sodium Metabisulfite contains an amount of Na2S2O5 equivalent to not less than 65.0 percent and not more than 67.4 percent of SO2.

Identification: A solution (1 in 20) responds to the tests for Sodium 191 and for Sulfite.
Limit of chloride: Dissolve 1.0 g in 10 mL of water, filter, if necessary, through a small chloride free filter, and add 6 mL of 30 percent hydrogen peroxide. Add 1 N sodium hydroxide until the solution is slightly alkaline to phenolphthalein, dilute with water to 100 mL, and mix. Dilute 2.0 mL of this solution with water to 20 mL, and add 1 mL of nitric acid and 1 mL of silver nitrate TS. Mix, allow to stand for 5 minutes protected from direct sunlight, and compare the turbidity, if any, with that produced from a 2-mL aliquot of a control (prepared by diluting 0.71 mL of 0.020 N hydrochloric acid to 100 mL) in an equal volume of total solution containing the quantities of reagents used in the test : any turbidity produced by the test specimen does not exceed that of the control preparation (0.05%).
Iron: the limit is 0.002%.
Limit of thiosulfate: Mix 2.2 g with 10 mL of 1 N hydrochloric acid in a 50-mL beaker. Boil gently for 5 minutes, cool, and transfer to a small test tube. Any turbidity is not greater than that produced by 0.10 mL of 0.10 N sodium thiosulfate, similarly treated (0.05%).
Heavy metals: the limit is 0.002%.

Sodium Metabisulphite BP Specifications
Sodium Pyrosulphite
Na2S2O5
Action and use: Antioxidant.

DEFINITION
Sodium metabisulphite also called sodium disulphite.
Content: 95.0 per cent to 100.5 per cent.

CHARACTERS
Appearance: White or almost white, crystalline powder or colourless crystals.
Solubility: Freely soluble in water, slightly soluble in ethanol (96 per cent).

IDENTIFICATION
A. pH 3.5 to 5.0 for solution S.
B. To 0.4 ml of iodinated potassium iodide solution R add 8 ml of distilled water R and 1 ml of solution S diluted 1 to 10 in distilled water R. The solution is colourless and gives reaction of sulphate.
C. Solution S gives reaction of sodium.

TESTS
Solution S: Dissolve 5.0 g in carbon dioxide-free water prepared from distilled water and dilute to 100 ml with the same solvent.
Appearance of solution: Solution S is clear and colourless.
pH: 3.5 to 5.0 for solution S.
Thiosulphate: To 5 ml of solution S add 5 ml of dilute hydrochloric acid R. The solution remains clear for at least 15 min.
Arsenic: Maximum 5 ppm.
Iron: Maximum 20 ppm, determined on solution S.
Heavy metals: Maximum 20 ppm.

DESCRIPTION
Sodium Metabisulfite occurs as colorless crystals or as a white to yellow, crystalline powder. It is freely soluble in water and slightly soluble in alcohol. Its solutions are acid to litmus.
Function: Preservative; antioxidant.

REQUIREMENTS
Identification: A 1:10 aqueous solution gives positive tests for Sodium and for Sulfite.
Assay: Not less than 90.0% and not more than 100.5% of Na2S2O5.
Iron: Not more than 10 mg/kg.
Lead: Not more than 2 mg/kg.
Selenium: Not more than 5 mg/kg.

REQUIREMENTS
Assay: 97% Na2S2O5 minimum. MAXIMUM ALLOWABLE
Insoluble matter: 0.005% maximum.
Chloride (Cl): 0.05% maximum.
Thiosulfate (S2O3): 0.05% maximum.
Heavy metals (as Pb): 0.001% maximum.
Iron (Fe): 0.002% maximum.

Sodium Metabisulfite or Sodium Metabisulphite USP NF BP Ph Eur Reagent FCC Food Grade manufacturers

Anmol Chemicals
S-8, SARIFA MANSION, 2ND FLANK ROAD, CHINCHBUNDER, MUMBAI 400009, INDIA
TEL: (OFFICE) 91-22-23770100, 23726950, 23774610, 23723564. FAX: 91-22-23728264

Exports to USA, Canada, UAE, Dubai, South Africa, Tanzania, Kenya, Nigeria, Egypt, Uganda, Turkey, Mexico, Brazil, Chile, Argentina, Europe Netherlands, Italy, Spain, Germany, Portugal, France, Malaysia, Indonesia, Thailand, Vietnam, Korea, Japan, etc.

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