USA India Foodoric and associated companies are chemicals manufacturing companies operated in India USA UAE Europe and other countries around the world. The associates have one or more of certifications like ISO-9001:2008, ISO-14001, ISO-22000:2005, FSSC 22000; OHSAS 18001; Kosher and Halal Certified; HACCP, FSSAI and FDA - GMP approval. Buyers are assured of good quality and CIF wholesale and retail price for supplies of our Sodium Metabisulfite.

Foodoric Home --------- Foodoric Contact

Jumbo Packing Bulk container Open top drum Bags Export supplies air suppliers Export Import Sodium Metabisulfite Manufacturers

Sodium Metabisulfite BP USP NF ACS Reagent FCC Food Grade Manufacturers Suppliers

Sodium Metabisulfite
BP USP NF ACS Reagent FCC Food Grade
Sodium Metabisulfite

Sodium Metabisulfite: CAS Number: 7681-57-4, Molecular Formula: Na2S2O5, Molecular Weight: 190.11

Sodium Metabisulfite FCC Food Grade
Sodium Pyrosulfite
Na2S2O5 Formula wt 190.11
INS: 223 CAS: [7681-57-4]

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.

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.


Sodium Metabisulphite BP
Sodium Pyrosulphite
Na2S2O5

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.


Sodium Metabisulfite USP NF
Na2S2O5 -- 190.11
Disulfurous acid, disodium salt.
Disodium pyrosulfite [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.

Packaging and storage: Preserve in well-filled, tight containers, and avoid exposure to excessive heat.
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 Metabisulfite ACS Reagent
Disodium Disulfite
Na2S2O5
Formula Wt 190.11
CAS Number 7681-57-4

REQUIREMENTS
Assay min 97.0% Na2S2O5

MAXIMUM ALLOWABLE
Insoluble matter 0.005%
Chloride (Cl) 0.05%
Thiosulfate (S2O3) 0.05%
Heavy metals (as Pb) 0.001%
Iron (Fe) 0.002%

Sodium Metabisulfite Manufacturers Suppliers:

Foodoric Group of Cos
India, USA, UAE, Europe

e-mail: info@foodoric.com

Suppliers USA India
Copyright Last 8 December, 2017

Sodium Metabisulfite Suppliers, Exporters, Importers, Manufacturers offering good CIF wholesale and retail prices, quality and online information.

A jackal woke up early in the morning and went in to the plains. He looked at his long shadow in the rising morning sun and said to himself, "I must have a camel for my meal today".

He kept moving around till noon and it was getting hot and the jackal was tired. He was also hungry and thirsty. He looked at his small shadow in the mid-day sun. He murmered, "I was only joking about the camel, a mouse will do".