一、化學(xué)名：乙酸鉀
二、分子式：C2H3KO2
三、分子量：98.14
四、CAS：127-08-2
五、性狀：白色結(jié)晶性粉末，易潮解，有咸味。1mol/l水溶液pH值為7.0-9.0。相對密度（d425）1.570,?熔點292℃,?極易溶于水(235g/100mL, 20℃; 492g/100mL, 62℃)、乙醇(33g/100mL)和甲醇(24.24g/100mL, 15℃)，不溶于乙醚。
六、用途：緩沖劑、中和劑、防腐劑、護色劑（動植物天然色保護劑）。
七、包裝：內(nèi)襯聚乙烯塑料袋，外套復(fù)合塑料編織袋包裝，每袋凈重25kg。
八、貯存與運輸：本品應(yīng)貯存在干燥通風(fēng)清潔的庫房中，裝載運輸時要輕裝輕放，防止包裝破損，防止受潮、受熱，運輸過程中防止雨淋受潮，應(yīng)與有毒物品隔離。
| 質(zhì)量指標(biāo) | Specification | JECFA |
| 含量（以干基計），w/% ????????≥ | Content(As Dry Basis),w/% ????≥ | 99.0 |
| 干燥失重（150℃，2h），w/% ????≤ | Loss On Drying(150℃,2h),?w/% ??≤ | 8.0 |
| 堿度 | Alkalinity | 正常(Normal) |
| 鉀化合物 | Test for potassium | Pass Test |
| 鈉化合物 | Test for sodium | 正常(Normal) |
| 鉛，mg/kg???????????≤ | Lead,mg/kg???????????≤ | 2 |
| 乙酸鹽 | Test for acetate | Pass Test |
| pH值（50g/L溶液，25℃） | pH Value (50g/L?solution,25℃) | 7.5-9.0 |
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.
