FORMULA: C4H4NO4KS

MOL. WEIGHT:       201.24

CAS NO.:     55589-62-3

DESCRIPITON:White, odourless, free flowing crystalline powder having an intensely sweet tasteapproximately 200 times sweeter than sucrose (3% solution);

TEST

REQUIREMENT

RESULT

Solubility inWater

Freely soluble

Freely soluble

Solubility inEthanol

Slightly soluble

Slightly soluble

Ultraviolet Abserption

227±2nm

227±2nm

Test for Potassium

Positive

Positive

Precipitation test

Yellow Precipitate

Yellow Precipitate

TEST

REQUIREMENT

RESULT

Assay Content            %

99.0~101.0%

99.72

Loss on Drying(105℃,2h) %

≤1

0.1

Organic Impurities    ug/g

≤20

<20

Fluoride           mg/kg

≤3

<1

Potassium             %

17.0~21

18.8

HeavyMetals       mg/kg

≤5

<5

Lead              mg/kg

≤1

<1

Selenium          mg/kg

≤10

<1

Sulphate              %

≤0.1

<0.03

PH(1in100 solution)

6.5~7.5

7.00

Arsenic           mg/kg

≤3

<1

Mercury          mg/kg

≤10

None

TEST

REQUIREMENT

RESULT

Total Plate Count     cfu/g

≤200

<10

Coliforms-MPN    MPN/g

≤10

None

Yeast and Moulds    cfu/g

≤100

<10

E.Coli

Negative

None

Salmonella

Negative

None