Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
1. Basic Product Information
- Full Name: Potassium Sorbate
- Aliases: Sorbic Acid Potassium Salt, Food Preservative E202
- CAS No.: 590-00-1
- EINECS No.: 611-771-3
- IUPAC Name: Potassium (2E,4E)-hexa-2,4-dienoate
- Molecular Formula: C6H7KO2
- Molecular Weight: 150.22
- Chemical Classification: Organic synthetic food preservative, unsaturated carboxylic acid potassium salt
- Core Product Features
High-efficiency mould and yeast inhibitor, low toxicity, excellent thermal stability, effective anti-corrosion performance within pH3.0-6.0. Compliant with FDA, EU E202, GB food additive standards, easily metabolized by human body without toxic accumulation, no strange odour affecting food taste.
2. Physical & Chemical Properties
2.1 Physical Properties
- Appearance: White or off-white crystalline powder, granule or flaky crystal, uniform particle size, no caking or foreign impurities
- Odor: Odorless or with extremely faint inherent smell
- Solubility: Freely soluble in water; soluble in ethanol, propylene glycol; slightly soluble in acetone; insoluble in benzene, aliphatic hydrocarbon solvents
- Relative Density (20℃): 1.363
- Melting Point: 270℃ (decompose while melting)
- Boiling Point: No fixed boiling point, severe decomposition above 280℃ under normal pressure
2.2 Chemical Properties
- Stability: Stable in neutral and weak acid environments; easy to oxidize and discolor under long-time strong light or high temperature
- Antimicrobial Performance: Strong inhibitory effect on mould, yeast and Gram-negative bacteria, better antiseptic effect than sodium benzoate
- pH Adaptability: Only effective for anti-corrosion in pH 3.0~6.0 acid system
- Compatibility: Incompatible with strong oxidants and strong alkali, cannot be mixed stored
- Safety: Low acute toxicity, non-carcinogenic, globally recognized safe additive for food, feed and cosmetics
3. Main Applications
3.1 Food Industry (Core Application)
Authorized food-grade preservative E202 for anti-mould and fresh-keeping. Widely used in fruit juice, carbonated drinks, bread, cakes, preserved fruits, pickles, wine, meat products and dairy foods. It restrains microbial reproduction, greatly extends shelf life and retains original food flavour.
3.2 Animal Feed Industry
Mildew-proof additive for livestock, poultry and aquaculture feed, prevents feed deterioration, reduces harmful bacteria and prolongs feed storage cycle.
3.3 Cosmetic & Daily Chemical Industry
Water-soluble preservative added to facial cream, shampoo, body wash, aqueous essence and moisturizing lotion. Avoids mould and bacterial contamination in cosmetic formulas, stabilizes product system and extends shelf life of personal care products.
3.4 Other Fine Chemical Fields
Anti-corrosion additive for plant extracts, water-based adhesives, tobacco and pharmaceutical intermediates to inhibit microbial spoilage.
4. Full Parameter Specification Table
| Item | Detailed Standard Specification |
| CAS No. | 590-00-1 |
| Molecular Formula | C6H7KO2 |
| Molecular Weight | 150.22 |
| Appearance | White or off-white crystalline powder |
| Melting Point | 270℃ (decompose on melting) |
| Boiling Point | Decompose above 280℃, no fixed boiling point |
| Product Purity | Food Grade ≥99.0%; Feed Grade ≥98.0% |
| Moisture Content | ≤0.5% |
| Heavy Metal (Pb) | ≤10 ppm (food grade standard) |
| Bulk Packaging | 25kg kraft paper drum with PE inner plastic bag |
| Sample Packaging | 1kg / 5kg sealed plastic bag |
| Storage Condition | Sealed storage in cool dry warehouse below 30℃; away from strong light, oxidants and strong alkali |
| Transportation Standard | General ordinary chemical goods, non-dangerous goods; separate from food raw materials and corrosive substances |
| Shelf Life | 24 months under intact original sealed packaging |
