1. Product Description
Monosodium Fumarate is the monosodium salt of fumaric acid. It is a white crystalline or granular powder, odorless, with a slightly tart taste. It is freely soluble in water and used as a food acidulant, buffering agent, nutritional supplement, and chemical intermediate in industrial applications.
2. Specifications — Food / Pharmaceutical Grade (Typical USP / FCC Standard)
| Item | Specification / Typical Value | Test Method / Reference |
|---|
| Appearance | White crystalline or granular powder | Visual |
| Identification | Positive for fumarate and sodium | USP / FCC |
| Assay (C₄H₃NaO₄) | 99.0 – 101.0 % (dry basis) | Titration / HPLC |
| Loss on Drying (105 °C) | ≤ 0.5 % | USP |
| pH (1% solution) | 5.5 – 6.5 | 25 °C |
| Sodium Content (Na) | 15.0 – 16.0 % | ICP / Titration |
| Heavy Metals (as Pb) | ≤ 10 ppm | ICP |
| Lead (Pb) | ≤ 2 ppm | ICP |
| Arsenic (As) | ≤ 1 ppm | ICP |
| Cadmium (Cd) | ≤ 1 ppm | ICP |
| Mercury (Hg) | ≤ 0.1 ppm | ICP |
| Solubility | Freely soluble in water; insoluble in ethanol | Visual |
| Microbiological Limits | Total plate count ≤ 1000 cfu/g; Yeast & Mold ≤ 100 cfu/g; E. coli, Salmonella negative | ISO / USP |
3. Specifications — Industrial / Technical Grade
| Item | Specification / Typical Value |
|---|
| Appearance | White to off-white crystalline powder |
| Assay (C₄H₃NaO₄) | ≥ 98.0 % |
| Moisture | ≤ 1.0 % |
| Water-Insoluble Matter | ≤ 0.5 % |
| Heavy Metals (as Pb) | ≤ 20 ppm |
Typical Applications:
Food acidulant, pH adjuster, and buffering agent
Nutritional supplement ingredient
Intermediate for chemical synthesis
Feed additive for mineral supplementation
4. Physical & Chemical Properties
| Property | Value |
|---|
| Appearance | White crystalline or granular powder |
| Odor | Odorless |
| Taste | Slightly tart |
| Solubility | Freely soluble in water; insoluble in ethanol |
| Bulk Density | 0.7 – 1.0 g/cm³ |
| Stability | Stable under normal storage conditions; avoid moisture |
5. Storage & Handling
Store in a cool, dry, well-ventilated area
Protect from moisture, sunlight, and heat
Keep container tightly closed
Follow GMP / HACCP guidelines for food and pharma handling
6. Packaging
| Grade | Standard Packaging |
|---|
| Food / Pharma Grade | 25 kg fiber drum or multi-layer paper bag with PE liner |
| Industrial / Technical Grade | 25 kg woven bag or jumbo bag |
7. Shelf Life
24 months when stored in original sealed packaging under dry conditions
For more information, please visit this website：http://www.khonorchem.com
China
