Introduction
Sodium alginate, also called as Algin, is a kind of white or light yellow granular or powder, almost odorless and tasteless.
It is a macromolecular compound with high viscosity, and a typical hydrophilic colloids. Because of its properties of stability, thickening and emulsifying, hydratability and gelling property, it is widely used in food, pharmaceutical, printing and dyeing, etc.
Shelf life: 24 months
Storage:Kept in dry, cool, and shaded place with original packaging, avoid moisture, store at room temperature.
| Items | Standards |
| Appearance | White powder |
| Particule size | 80 Mesh |
| Viscosity (mPa.s, 1% solution, 20ºC) | 1000 Mpa.s(1%solution natural basis |
| Assay (dry basis, %) | 90.8 - 106% |
| Loss on drying (105ºC, 4h) | ≤ 15% |
| pH (1% solution) | 6.0 - 7.5 |
| Water insolubles (dry basis) | ≤ 2% |
| Total ash | 18 - 27% |
| Copper (Cu) | ≤ 10PPM |
| Zinc (Zn) | ≤ 10PPM |
| Lead (Pb) | ≤ 3PPM |
| Arsenic (As) | ≤ 2PPM |
| Mercury (Hg) | ≤ 1PPM |
| Cadmium (Cd) | ≤ 1PPM |
| Total Heavy metals (as Pb) | ≤ 10PPM |
| Total plate count | ≤ 5000 cfu/g |
| Yeast & mould | ≤ 500 cfu/g |
| Salmonella/ 10g | Absent |
| E. Coli/ 5g | Absent |
| Rormaldehyde | ≤50mg/kg |
China
