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CAS NO.:
868-14-4(Standard: GB 25556-2010 FCC)
Name:
Cream of Tartar
Function:
DESCRIPTION
Colorless crystals or white crystal powder with sweet and sour taste, sparingly soluble in water, freely soluble in dilute mineral acid, alkaline solution or borax solution and insoluble in acetic acid or ethanol, relative density 1.984.
Chemical Name
L-Potassium Hydrogen Tartrate
Molecular Formula
C4H5KO6
Structural Formula
HOOC(CHOH)2*COOK
Molecular Weight
188.18
SPECIFICATION
(Executive Standard: GB 25556-2010,also meets the standard of FCC)
Assay [as C4H5KO6 ]
99.0% ~ 101.0%
Specific rotation
 
+32.5 ~ +35.5
Clarity Test
Qualified
Loss on dry 0.5% Max
Arsenic [as As] 3mg/kg Max
Lead
2mg/kg Max
Sulfate [as SO4]
0.019% Max
Ammomnium Salt Test
Qualified
MAIN FUNCTION AND PURPOSE
Served as capacity analytical reagent, buffer and reducing agent, also as leavening agent in food industry.
PACKING
25KG net in Kratf/Plastic Bag lined with PE bag
STORAGE
Kept airtightly in a light-proof, dry and cool place.


 


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