Overview
Calcium formate (CAS 544-17-2 ), also sold under the trade name Calcoform and approved as E328 , is the calcium salt of formic acid used across food, feed, construction, and personal care industries.
It functions primarily as a preservative, pH buffer, and setting accelerator depending on the application sector. In animal feed, it acts as an acidifier and antimicrobial agent, lowering gut pH to inhibit pathogen growth.
This additive improves nutrient absorption in poultry and swine diets. Construction formulators use it as a concrete and mortar accelerator, reducing setting time in cold-weather applications without chloride-related corrosion risks.
Food and beverage producers apply E328 as a buffering and preservative agent in compliance with permitted additive regulations. Personal care manufacturers incorporate it into formulations requiring controlled pH stabilization.
The product also provides mild preservation support for various cosmetic applications. Calcium formate is supplied as a white crystalline powder or granules, ensuring easy handling and mixing in industrial processes.
Standard commercial grades include food-grade ( FCC , E328-compliant) and feed-grade specifications, with technical grade available for construction applications. Purity levels typically range from 98% to 99%+.
Bulk supply is available in bags or big bags to suit industrial volumes. This versatile chemical ensures high performance across diverse manufacturing sectors while meeting strict regulatory requirements for safety and quality.
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Physical Properties
| Melting Point | >300 °C |
| Density | 2.015 g/cm³ |
| Appearance | white to almost white fine crystalline powder |
| Color | orthorhombic crystals, crystalline |
| Odor | wh. orthorhombic cryst. or cryst. powd., sl. acetic acid-like odor |
| Form | orthorhombic crystals |
| Water Solubility | SOLUBLE |
| Vapor Pressure | 3.41Pa at 25℃ |
| Refractive Index | 1.3714 |
| pH | 6.0-8.0 (25℃, 1M in H2O) |
| Log P | -2.3 at 20℃ |
Safety & Handling
Danger GHS05 Hazard Statements H318 Causes serious eye damage Precautionary Statements P280 Wear protective gloves/protective clothing/eye protection/face protection. P317 Get emergency medical help. P264+P265 Wash … thoroughly after handling. P305+P354+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Trade & Regulatory
| HS Code | 29151200 |
| WGK (Germany) | 1 |
Other Names
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Chemical Properties
- CAS Number
- 544-17-2
- EC Number
- 208-863-7
- Mol. Weight
- 130.11
- HS Code
- 29151200
- Category
- Organic Acids