 |
| Bread |
| Thickener |
| Acidulant |
| Preservative |
| Sweetener |
| Nutrition enhancer |
| Pharmaceutical |
| Food flavor |
| Phosphate |
| Starch |
|
Test Term
|
Specification
|
|
Appearance
|
White crystalline powder
|
|
Identification: IR
|
conform to reference spectrum
|
|
HPLC
|
Conform to chromatogram
of the standard preparation
|
|
Melting point(℃）
|
234-239
|
|
Appearance of solution
|
Should be clear,colorless
|
|
Solubility
|
Sparingly soluble in water, freely
soluble in boiling water, slightly
soluble in ethanol(96%).
It dissolves in concentrated solutions
of alkali benzoates or salicylates.
It sublimes readily.
|
|
Acidity(0.01mol/L NaOH, ml)
|
≤0.2
|
|
Chromatographic purity:single impurity
|
≤0.10%
|
|
Total impurities
|
≤0.1
|
|
Sulfate
|
≤500ppm
|
|
Heavy metal
|
≤0.001（on Pb basis)(%)
|
|
Loss on drying
|
≤0.5%
|
|
Residue on ignition
|
≤0.1%
|
|
Sulphated ash
|
≤0.1%
|
|
Residual solvent
|
≤60ppm
|
|
Mesh size
|
100% pass 40 mesh
|
|
Assay(on dried basis)(HPLC)
|
