Potassium Sorbate

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INTRODUCTION

Parameters

Product	Potassium Sorbate
CAS No.	590-00-1/24634-61-5
Molecular Formula	C₆H₇KO₂
Structural Formula
Molecular Weight	150.22
Quality Standard	FCC IX
Packing	In 25kgs carton
Shelf Life	2 years, Keep in cool and dry place
Specification	Standard
Appearance	White to off- white granular
Odor	Slight characteristic odor
Solubility	Freely soluble in water and practically insoluble in ether
Heat Stability	No change in color after heating for 90 min at 105 ℃
Identification Test	(1) Potassium test: Passes Test (2) Test of double bonds:Passes Test (3) UV: conforms with standard spectrum (4) Melting point:133.0～135.0 ℃
Assay(on dry weight basis)	99%～101.0%
pH-Value(10% water solution)	8.5-10.5
Transmittance	≥90.0%
Clarify	Passes Test
Organic Volatile Impurities	Meet the requirement
Acidity(As sorbic acid)	≤1%
Alkalinity(as K₂CO₃)	≤1%
Chloride(as Cl)	≤0.018%
Sulfate(as SO₄)	≤0.038%
Loss On Drying	≤1.0%
Aldehydes(as formaldehyde)	≤0.1%
Heavy Metals(as Pb)	≤10mg/kg
Arsenic (as As)	≤3mg/kg
Lead	≤2mg/kg
Zinc	≤0.1mg/kg
Cadmium	≤0.02mg/kg
Mercury	≤1mg/kg
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