Preservative Potassium Sorbate
Product Name: Preservative Potassium Sorbate
CAS No: 590-00-1
Type: Preservatives, Pharmaceutical Intermedaites
Appearance: White granular or powder
Molecular Weight: 150.22
Molecular Formula: C6H7KO2
Melting Point: 270 °C
Density: 1.3630
EINECS No: 611-771-3
Place of Origin: China (Mainland)
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Introduction
Potassium sorbate is produced by neutralizing potassium hydroxide with asorbic acid. It is white or off white granular or powder. Preservative Potassium Sorbate is used to inhibit molds and yeasts. It is considered to be safe because of its long term safety record and non-toxic profile, the toxicity is 1/40 times than sodium benzoate.
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Functions
It is widely used in food , drink, vegetables in soy, tobacco, drugs, cosmetics, agricultural products etc as preservative. Also, Preservative Potassium Sorbate is used in personal care products to inhibit the development of microorganism for shelf stability but not be used in foods with yeast.
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Usage
Potassium sorbate is a preservative primarily against mold and yeast, and used in concentrations of 0.025 to 0.2 percent. Preservative Potassium Sorbate is non-toxic but may cause mild skin irritation.
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Technical Parameters
| Test Item | Standard | Result |
| Appearance | White granular or powder | Confirm |
| Heat Stability | No change in color (105℃, 90 minutes) | Confirm |
| Assay | ≥99.0% | 99.5% |
| Alkalinity or acidity | Not more than 1.0% (as Sorbic acid or K2CO3) | Pass test |
| Loss on drying | ≤1.0% (105℃, 3 hours) | 0.56% |
| Aldehydes | Not more than 0.1%, calculated as formaldehyde) | Pass test |
| Arsenic (as As) | ≤3 ppm | Pass test |
| Lead | ≤1 ppm | Pass test |
| Mercury | ≤1 ppm | Pass test |
| Test for double bonds | Pass | Pass test |
| Test for potassium | Pass | Pass test |
| Conclusion | Qualified | |
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