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Chemicals(Medicine intermediate)
¡¡PRODUCT NAME: LONGSWEET ACE-K
¡¡CAS NO: 55589-62-3
¡¡Molecular Formula: C4H4KNO4S
¡¡Standard: FCC IV

 
TEST
REQUIREMENT
RESULT
Identifications
Solubility in water
freely soluble
freely soluble
Solubility in alcohol
slightly soluble
slightly soluble
Ultraviolet absorption
227±2nm
227nm
Test for potassium
positive
positive
Precipitation test
yellow precipitate
yellow precipitate
Assay(titrimetric method)
99.0-101.0%
99.40%
Purity
Potassium
17.0-21.0%
18.42%
Loss on drying
1% max
0.09%
Organic impurities
20mg/kg max
10 mg/kg
Fluoride
3mg/kg max
no more than 3mg/kg
Heavy metals
10mg/kg max
no more than 5mg/kg
Lead
1mg/kg max
no more than 0.5mg/kg
Arsenic
3mg/kg max
no more than 0.5mg/kg
Selenium
30mg/kg max
no more than 0.5mg/kg
PH (1 in 100 solution)
6.5-7.5
6.89

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