Products Overview
Potassium sorbate (CAS 24634-61-5) is the potassium salt of sorbic acid and one of the most widely used food preservatives worldwide (E202). It inhibits the growth of molds, yeasts, and some bacteria, helping to extend the shelf life of food, beverages, cosmetics, and animal feed while preserving flavor and freshness.
Potassium sorbate is highly soluble in water and performs best in mildly acidic products (pH up to approximately 6.5). Potassium sorbate is widely approved for use as a food preservative in major markets. In the United States, it is listed as GRAS under 21 CFR 182.3640. In the European Union, potassium sorbate is authorized as food additive E202 under Regulation (EC) No 1333/2008 and is subject to the applicable specifications established under Regulation (EU) No 231/2012, as amended. The product is supplied to FCC food-grade specifications.
Sinoright supplies FCC food-grade potassium sorbate in granular and powder forms, with a Certificate of Analysis (COA) provided for every batch. Potassium sorbate is commonly identified by CAS No. 24634-61-5; 590-00-1 is also used as an alternative CAS Registry Number in chemical databases and commercial references.
Technical Specifications
|
Parameter |
Specification |
|
Appearance |
White granular/white powder |
|
Molecular Formula |
C6H7KO2 |
|
Molecular Weight |
150.22 |
|
CAS No. |
24634-61-5 (also 590-00-1) |
|
EINECS No. |
246-376-1 |
|
E Number |
E202 |
|
Grade |
FCC, food grade |
|
Assay |
99.0% - 101.0% |
|
Loss on Drying |
<= 1.0% |
|
Acidity (as sorbic acid) |
<= 1.0% |
|
Free Alkali (as K2CO3) |
< 1.0% |
|
Aldehydes (as formaldehyde) |
<= 0.1% |
|
Heavy Metals (as Pb) |
<= 10 ppm |
|
Arsenic (As) |
<= 3 ppm |
|
Lead (Pb) |
<= 2 ppm |
|
Mercury (Hg) |
<= 1 ppm |
|
Odor |
Odorless |
|
Water Solubility |
Highly soluble in water |
|
Shelf Life |
2 years |
|
Packaging |
Standard Packaging 25 kg/carton; palletized packing available upon request |
Certificate of Analysis (COA)
Every shipment is accompanied by a COA based on actual batch testing. Key results from a typical batch are shown below; the full COA, including the applicable quality parameters, is provided with every shipment. Additional quality documentation is available upon request.
|
Parameter |
FCC IV Limit |
Batch Result |
|
Appearance |
White granular/white powder |
White granular/white powder |
|
Identification |
Conforms to standard |
Conforms |
|
Assay |
99% - 101.0% |
100.32% |
|
Loss on Drying |
<= 1% |
< 0.30% |
|
Free Alkali (as K2CO3) |
< 1% |
0.53% |
|
Mercury (Hg) |
<= 1 ppm |
< 1 ppm |
|
Lead (Pb) |
<= 2 ppm |
< 2 ppm |
Uses and Applications
Food & Beverage
Potassium sorbate is widely used in bakery products (bread, cakes, pastries), dairy products (cheese, yogurt), beverages (soft drinks, fruit juices), jams, sauces and condiments, dried fruits, and meat products. It inhibits mold and yeast growth, prevents fermentation and spoilage, and helps maintain quality during storage and distribution. For best results, dissolve the required amount in water before adding to the product, and use in mildly acidic systems (pH up to about 6.5).
Wine Making
Potassium sorbate is commonly added to wine after fermentation, before bottling, to prevent secondary fermentation and stabilize the finished wine. It stops yeast from reproducing without affecting the taste of the wine. Under China's National Food Safety Standard (GB 2760-2024), the maximum permitted level is 0.2 g/kg in wine and 0.6 g/kg in fruit wine, expressed as sorbic acid.
Cosmetics & Personal Care
Potassium sorbate is used as a preservative in creams, lotions, shampoos, and other personal care products to prevent microbial growth and extend shelf life. Typical formulation levels are often in the 0.1%-0.5% range, depending on the product formulation and applicable local regulations. It is most effective in mildly acidic formulations; please note that a 1% aqueous solution has an alkaline pH, so product pH should be adjusted for optimal efficacy.
Pharmaceuticals
Potassium sorbate may also be used as a preservative in certain pharmaceutical and aqueous formulations, subject to the applicable pharmacopeial requirements and formulation suitability.
Animal Feed & Other Applications
Potassium sorbate may be used in certain animal feed applications as a preservative, where permitted by applicable feed regulations.
Recommended Dosage
The table below summarizes selected maximum permitted levels for potassium sorbate under GB 2760-2024. Values vary by specific food category and are expressed according to the applicable regulatory basis.
|
Application Group |
Typical Products |
Maximum Permitted Level (g/kg, as sorbic acid) |
|
Dairy and fat products |
Cheese products, margarine, fat emulsions |
1.0 |
|
Bakery and confectionery |
Bread, pastries, chewing gum base, other confectionery |
1.0 - 1.5 |
|
Meat and aquatic products |
Cooked meat products, meat sausages, dried aquatic products |
0.075 - 1.5 |
|
Fruits, vegetables and processed foods |
Jam, preserved fruit, pickled vegetables, processed mushrooms, dried tofu, jelly |
0.5 - 1.0 |
|
Seasonings, condiments and syrups |
Soy sauce, vinegar, fermented bean paste, composite seasonings, flavoring syrup |
0.5 - 1.0 |
|
Beverages |
Soft drinks, lactic acid bacteria beverages, concentrated fruit/vegetable juice (industrial use) |
0.5 - 2.0 |
|
Alcoholic beverages |
Wine, fruit wine, blended wine |
0.2 - 0.6 |
|
Other |
Surface-treated fresh fruit and vegetables, flavored ice, egg products, collagen sausage casings |
0.5 - 1.5 |
Note: GB 2760-2024 specifies maximum permitted levels by specific food category. The ranges below are provided as a simplified reference for commonly relevant applications and should not be interpreted as a uniform limit for every product within each group. Actual permitted use levels depend on the specific food category, formulation, and applicable regulations in the target market.
Quality Assurance & Certifications
Sinoright supplies potassium sorbate manufactured at facilities registered with the US FDA and certified under applicable food safety and quality management standards, including BRCGS, FSSC 22000, Kosher, Halal, ISO 22000 and ISO 9001.
- Certificate of Analysis (COA) provided with every batch
- MSDS/SDS available on request
- Third-party inspection by recognized agencies (e.g., SGS, BV) supported on request
- Certified food-grade quality with batch-to-batch testing
- Export documentation support for international buyers
Packaging & Storage
- Standard packaging: 25 kg/carton; palletized packing available upon request
- Container loading: approximately 13 MT / 20' container, depending on packing and loading configuration
- Storage: store in a cool, dry, well-ventilated area; keep the original packaging tightly sealed and protect from moisture and direct sunlight
- Shelf life: 2 years from production date
- Handling: avoid dust inhalation and skin/eye contact during handling
Supply & Ordering Information
|
Item |
Detail |
|
MOQ |
1,000 kg |
|
Free Sample |
Up to 500 g, customer pays shipping |
|
Lead Time |
7 - 15 days after order confirmation |
|
Payment Terms |
T/T, L/C, D/P, D/A, O/A |
|
Port of Loading |
Qingdao, China |
|
HS Code |
291619 (country-specific tariff codes may vary) |
|
Packaging |
Standard Packaging 25 kg/carton; palletized packing available upon request |
|
Documents |
COA, MSDS/SDS, certificates |
|
Quotation |
FOB Qingdao / CIF available on request |
Why Choose Sinoright
Certified quality: products supplied from FDA-registered, BRCGS/FSSC 22000/Kosher/Halal/ISO-certified manufacturing facilities, with a batch COA for every shipment and third-party inspection supported on request.
Reliable export supply: 15+ years of industry experience, exporting to 70+ countries with reliable logistics and a 24-hour response team.
One-stop procurement & LCL consolidation: order multiple food ingredients in a single purchase and consolidate less-than-container-load shipments to reduce freight costs.
Flexible and competitive sourcing: as an export trading company, we source directly from certified partner manufacturers to keep pricing competitive and supply reliable.
Professional service: export-focused support covering samples, documentation, and order coordination, plus market price trends and industry updates to help optimize your procurement strategy.
FAQ
Q: What is the difference between potassium sorbate and sorbic acid?
A: Potassium sorbate is the potassium salt of sorbic acid. It is much more water-soluble, which makes it easier to incorporate into aqueous products. In low-pH products, potassium sorbate converts to the active form, sorbic acid, which inhibits mold and yeast growth.
Q: Is potassium sorbate safe and approved for food use?
A: Yes. Potassium sorbate is listed as GRAS by the US FDA (21 CFR 182.3640) and is authorized in the EU as food additive E202 under Regulation (EC) No 1333/2008. It also complies with FCC specifications.
Q: What is the MOQ and do you provide free samples?
A: The MOQ is 1,000 kg. Free samples of up to 500 g are available; the customer pays the shipping cost.
Q: What dosage should I use in my product?
A: The dosage depends on the product type, pH, and local regulations. Please refer to the dosage table above (GB 2760-2024) for maximum permitted levels, and contact us for guidance on typical usage.
Q: How should potassium sorbate be stored?
A: Store in a cool, dry, well-ventilated place with the original packaging tightly sealed, away from moisture and direct sunlight. Shelf life is 2 years.
Q: What packaging do you offer?
A: Standard packaging is 25 kg/carton, and palletized packing is available upon request. Please contact us for other packaging requirements.
Q: What documents do you provide?
A: Every shipment includes a Certificate of Analysis (COA). MSDS/SDS and certification documents (BRCGS, FSSC 22000, Kosher, Halal, ISO 22000, ISO 9001) are available on request.
Q: What are your payment terms and delivery lead time?
A: We accept T/T, L/C, D/P, D/A, and O/A. Lead time is typically 7 - 15 days after order confirmation. Goods are shipped from Qingdao, China, under FOB or CIF terms as agreed.
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