Ace- Sulfame K

Its chemical formula is C4H4KNO4S and is used in chewing gum, desserts, candies, etc.

Item

Standard

Result

Identifications

   

Solubility in water

Freely soluble

Freely soluble

Solubility in ethanol

Slightly soluble

Slightly soluble

Ultraviolet absorption

227 + 2 nm

227 nm

Test for potassium

Positive

Positive

Precipitation test

Yellow precipitate

Yellow precipitate

Assay (Titrimetric method)

99.0~101.0 %

99.46%

Purity

   

Loss on drying(105℃,2h)

1 %

0.04%

Organic impurities (HPLC)

20 mg/kg

< 20 mg/kg

Impurity A*

0.125 %

< 0.125 %

Impurity B **

20 mg/kg

< 20 mg/kg

Fluoride

3 mg/kg

0.35mg/kg

Heavy metals

5 mg/kg

0.5 mg/kg

Lead

1 mg/kg

0.30mg/kg

PH (1 in 100 Solution)

5.5~7.5

6.61

* Impurity A=3-Oxobutanamide ** Impurity B=5-Chloro-6-Methyl-1,2,3-Oxathiazin-4(3h)-one2,2-Dioxide

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