Potassium Polyaspartate（PASP-K）
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Winnie - 2021-11-10
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Specifications:
Potassium polyaspartate is the potassium salt of polyaspartic acid, produced from food grade L-aspartic acid and potassium hydroxide.
Polyaspartic Acid Potassium Salt (Potassium polyaspartate, CAS Number 64723-18-8, is safe for use as a stabiliser against tartrate crystal precipitation (anti-scaling additive), by EFSA Panel (Potassium Polyaspartate is Safe for Use As a Stabiliser in Wine).
Technology Specifications:
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CAS number |
64723-18-8 |
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Chemical name |
L-aspartic acid, homopolymer, potassium salt |
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Assay |
Not less than 98 % on dry weight basis |
|
Particle size |
Not less than 45 μm (not more than 1 % in weight of particles of less than 45 μm) |
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Description |
A light brown odourless powder |
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Solubility |
Very soluble in water and slightly soluble in organic solvents |
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pH |
7.5-8.5 (40 % aqueous solution) |
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Loss on drying |
Not more than 11 % (105°C,12 hours) |
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Potassium hydroxide |
Not more than 2 % |
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Aspartic acid |
Not more than 1 % |
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Other impurities |
Not more than 0.1 % |
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Arsenic (As) |
Not more than 2.5 mg/kg |
|
Lead (Pb) |
Not more than 1.5 mg/kg |
|
Mercury (Hg) |
Not more than 0.5 mg/kg |
|
Cadmium (Cd) |
Not more than 0.1 mg/kg |
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