| Specification | FAO/WHO,1992 | JECFA E261 |
| Content(On dry basis),w/% ≥ | 99.0 | 99.0 |
| Loss on drying(150℃,2h), w/% ≤ | 8.0 | 8.0 |
| Alkalinity | Normal | Passes test |
| Arsenic(As),mg/kg ≤ | 3.0 | ———— |
| Test for sodium | Normal | ———— |
| Lead(Pb),mg/kg ≤ | 10.0 | 2.0 |
| Heavy metal(as Pb),mg/kg ≤ | 20.0 | ———— |
| pH(5% Solution) | 7.5-9.0 | 7.5-9.0 |
| Acetate | ———— | Passes test |
| Sodium | ———— | Negative test |
1、Chemical Name: Potassium Acetate
2、Molecular Formula : C2H3KO2
3、Molecular Weight: 98.14
4、CAS: 127-08-2
5、Character: It is white crystalline powder. It’s easily deliquescent and tastes salty. PH value of 1mol/L aqueous solution is 7.0-9.0. Relative density（d425） is 1.570. Melting point is 292℃. It’s highly soluble in water (235g/100mL, 20℃; 492g/100mL, 62℃), ethanol (33g/100mL) and methanol (24.24g/100mL, 15℃), but insoluble in ether.
6、Usage: It is used as buffering agent, neutralizer, preservative and color fixative to
protect natural colors of animals and plants.
7、Packing: It is packed with polyethylene bag as inner layer, and a compound plastic woven bag as outer layer. The net weight of each bag is 25kg.
8、Storage and Transport: It should be stored in a dry and ventilative warehouse, kept away from heat and moisture during transportation, unloaded with care so as to avoid damage. Furthermore, it must be stored separately from poisonous substances.
