Mubychem Group, established in 1976, is the pioneer manufacturer of Potassium Nitrate, Pharmaceutical, Fragrance & Flavor chemicals in India. Mubychem Group has several manufacturing facilities spread across Gujarat and Mumbai India and world wide contacts and toll manufacturers. We are exporting globally to countries like USA, Europe, UAE, South Africa, Tanzania, Kenya, Egypt, Nigeria, Uganda, Turkey, Mexico, Brazil, Chile, Argentina, Dubai etc.

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Potassium Nitrate Nitrite Commercial Specifications

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Potassium Nitrate
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Potassium Nitrate

Potassium Nitrate BP

KNO3 -- 101.1 -- 7757-79-1

Potassium nitrate contains not less than 99.0 per cent and not more than the equivalent of 101.0 per cent of KNO3, calculated with reference to the dried substance.

A white, crystalline powder or colourless crystals, freely soluble in water, very soluble in boiling water, practically insoluble in alcohol.

A. It gives the reaction of nitrates.
B. Solution S (see Tests) gives the reactions of potassium.

Solution S
Dissolve 10.0 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.
Acidity or alkalinity
To 10 ml of solution S add 0.05 ml of bromothymol blue solution.  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.
Reducible substances
To 10 ml of solution S, add 0.5 ml of dilute sulphuric acid and 2 ml of zinc iodide  and starch solution. The solution does not become blue within 2 min.
If intended for ophthalmic use, it complies with the test for chlorides. Dissolve 2.5 g in water and dilute to 15 ml with the same solvent. The solution complies with the  limit test for chlorides (20 ppm).
Dilute 10 ml of solution S to 15 ml with distilled water. The solution complies with the limit test for sulphates (150 ppm).
1 ml of solution S complies with the limit test (A) for ammonium (100 ppm). If intended for ophthalmic use, not more than 50 ppm of ammonium. Calcium
Dilute 10 ml of solution S to 15 ml with distilled water. The solution complies with the limit test for calcium (100 ppm). If intended for ophthalmic use, not more than 50 ppm of calcium.
Dilute 5 ml of solution S to 10 ml with water. The solution complies with the limit test for iron (20 ppm). If intended for ophthalmic use, not more than 10 ppm of iron.
Not more than 0.1 per cent of Na, determined by atomic emission spectrometry.
Heavy metals
12 ml of solution S complies with limit test A for heavy metals (10 ppm).
Loss on drying
Not more than 0.5 per cent determined on 1.000 g by drying in an oven at 100 C to  105 C.

Potassium Nitrate USP

Potassium Nitrate
KNO3 101.10
Potassium nitrate.
Potassium nitrate [7757-79-1].

Potassium Nitrate contains not less than 99.0 percent and not more than 100.5 percent of KNO3.

Identification A solution of it responds to the tests for Potassium and for Nitrate.
Chloride A 500-mg portion of it shows no more chloride than corresponds to 0.21 mL of 0.020 N hydrochloric acid (0.03%).
Sulfate Dissolve 100 mg of Potassium Nitrate in 10 mL of water, add 15 mL of 6 N hydrochloric acid, and evaporate to dryness on a steam bath. To the residue so obtained add 7 mL of 6 N hydrochloric acid, and evaporate to dryness on a steam bath. Dissolve the residue so obtained in about 35 mL of water and, if necessary, neutralize with hydrochloric acid using litmus paper indicator. Filter, if necessary, to obtain a clear test solution. This test solution shows no more sulfate than corresponds to 0.10 mL of 0.020 N sulfuric acid (0.1%).
Arsenic: 3 ppm.
Lead A solution of 0.5 g of it in 20 mL of water contains not more than 5 4g of lead (corresponding to not more than 0.001% of Pb).
Heavy metals: 0.002%.
Iron: not more than 0.001%.
Limit of sodium the limit is 0.1%.
Limit of nitrite To pass the test.

Potassium Nitrate FCC

KNO3 Formula wt 101.10
INS: 252 CAS: [7757-79-1]

Potassium Nitrate occurs as colorless, transparent prisms, as white granules, or as a white, crystalline powder. It is slightly hygroscopic in moist air. One gram dissolves in 3 mL of water at 25, in 0.5 mL of boiling water, and in about 620 mL of alcohol. Its solutions are neutral to litmus.
Function: Antimicrobial agent; preservative.

Identification: A 1:10 aqueous solution gives positive tests for Potassium and Nitrate.
Assay: Not less than 99.0% and not more than 100.5% of KNO3 after drying.
Chlorate: Sprinkle about 100 mg of dry sample on 1 mL of sulfuric acid. The mixture does not turn yellow.
Lead: Not more than 4 mg/kg.
Loss on Drying: Not more than 1%.

ACS Specifications
American Chemical Society

Potassium Nitrate ACS

Formula Wt 101.10
CAS Number 7757-79-1

Assay: 99.0% KNO3
pH of a 5% solution: 4.5-8.5 at 25C

Insoluble matter ........... 0.005%
Chloride (Cl) ............... 0.002%
Iodate (IO3) ............... 5 ppm
Nitrite (NO2) .............. 0.001%
Phosphate (PO4) ........ 5 ppm
Sulfate (SO4) .............. 0.003%
Heavy metals (as Pb) ... 5 ppm
Iron (Fe) ..................... 3 ppm
Calcium (Ca) ............... 0.005%
Magnesium (Mg) ......... 0.002%
Sodium (Na) ............... 0.005%

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Old Spice: Manufacturing since more than Three Decades:
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