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Potassium Sulfate Commercial Pure BP ACS Reagent FCC Food Grade Manufacturers Suppliers

Potassium Sulfate
Pure BP ACS Reagent FCC Food Grade
Potassium sulfate

Potassium Sulfate: CAS Number: 7778-80-5, Molecular Formula: K2SO4, Molecular Weight: 174.3

Potassium Sulfate FCC Food Grade
K2SO4 Formula wt 174.26
INS: 515 CAS: [7778-80-5]

DESCRIPTION
Potassium Sulfate occurs as colorless or white crystals or as a crystalline powder. One gram dissolves in about 8.5 mL of water. It is insoluble in alcohol. The pH of a 1:20 aqueous solution is about 5.5 to 8.5.

REQUIREMENTS
Identification:A 1:10 aqueous solution gives positive tests for Potassium, Appendix IIIA.
Assay: Not less than 99.0% and not more than 100.5% of K2SO4.
Lead: Not more than 2 mg/kg.
Selenium: Not more than 5 mg/kg.


Potassium Sulphate BP Grade
K2SO4 -- 174.3 -- 7778-80-5
Ph Eur

DEFINITION
Content: 98.5 per cent to 101.0 per cent of K2SO4 (dried substance).

CHARACTERS
Appearance: White or almost white, crystalline powder or colourless crystals.
Solubility: Soluble in water, practically insoluble in ethanol.

IDENTIFICATION
A. It gives the reactions of sulphates.
B. It gives the reactions of potassium.

TESTS
Solution S: Dissolve 10.0 g in 90 ml of carbon dioxide-free water prepared from distilled water,
heating gently. Allow to cool and dilute to 100 ml with carbon dioxide-free water prepared from distilled water.
Appearance of solution: Solution S is clear and colourless.
Acidity or alkalinity: To 10 ml of solution S add 0.1 ml of bromothymol blue solution R1. Not more than 0.5 ml of 0.01 M hydrochloric acid or 0.01 M sodium hydroxide is required to change the colour of the indicator.
Chlorides: Maximum 40 ppm.
Calcium: Maximum 200 ppm.
Iron: Maximum 10 ppm, determined on 10 ml of solution S.
Magnesium: Maximum 20 ppm.
Sodium: Maximum 0.10 per cent.
Heavy metals: Maximum 20 ppm.
Loss on drying: Maximum 1.0 per cent, determined on 1.000 g by drying in an oven at 130 °C for 4 h.


Potassium Sulfate ACS AR Analytical Reagent Grade
K2SO4 ======= Formula Wt 174.26
CAS Number 7778-80-5

REQUIREMENTS
Assay: 99.0% K2SO4
pH of a 5% solution: 5.5-8.5 at 25C

MAXIMUM ALLOWABLE
Insoluble matter: 0.01%
Chloride (Cl): 0.001%
Nitrogen compounds (as N): 5 ppm
Heavy metals (as Pb): 5 ppm
Iron (Fe): 5 ppm
Calcium (Ca): 0.01%
Magnesium (Mg): 0.005%
Sodium (Na): 0.02%

Potassium Sulfate Manufacturers Suppliers:

Foodoric Group of Cos
India, USA, UAE, Europe

e-mail: info@foodoric.com

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Copyright Last 7 December, 2017

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