一、化學(xué)名：乙酸鈉
二、分子式：C2H3NaO2 ；C2H3NaO2·3H2O
三、分子量：無水物：82.03；三水物：136.08
四、CAS: ?無水物：127-09-3；三水物：6131-90-4
五、性狀：結(jié)晶品（三水）為無色透明結(jié)晶或白色結(jié)晶粉末，無水物為白色結(jié)晶性粗粉或塊狀，無臭，稍有醋樣氣味。結(jié)晶品相對密度1.45，在溫暖干燥的空氣中易風(fēng)化，1g約溶于0.8mL水和19mL乙醇。無水品相對密度1.528，熔點(diǎn)324℃，吸濕性很強(qiáng)，1g約溶于2mL水中。
六、用途：緩沖劑、調(diào)味劑、pH值調(diào)節(jié)劑、增香劑、呈味劑等。
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25kg。
八、貯存與運(yùn)輸：本品應(yīng)貯存在干燥通風(fēng)清潔的庫房中，裝載運(yùn)輸時要輕裝輕放，防止包裝破損，防止受潮、受熱，運(yùn)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 | GB 30603—2014 | FCC?VII | ||
| 含量（以干基計），?w/% | Content(As Dry Basis),?w/% | ≥98.5 | 99.0-101.0 | ||
| 酸度和堿度 | Acidity and Alkalinity | 通過試驗(yàn) | ———— | ||
| 鉛（Pb），mg/kg???????????≤ | Lead (As Pb),?mg/kg??????????????≤ | 2 | 2 | ||
| 堿度，w/% ??????????????≤ | Alkalinity, w/% ??≤ | Anhydrous | ———— | 0.2 | |
| Trihydrate | ———— | 0.05 | |||
| 干燥失重，w/% | 無水品??≤ | Loss on Drying, w/% | Anhydrous?≤ | 2.0 | 1.0 |
| 結(jié)晶品 | Trihydrate | 36.0-42.0 | 36.0-41.0 | ||
| 鉀化合物 | Potassium Compound | 通過試驗(yàn) | Pass Test | ||
1、Chemical Name:?Sodium Acetate
2、Molecular Formula :?C2H3NaO2 ,C2H3NaO2·3H2O
3、Molecular Weight: Anhydrous?82.03,Trihydrate?136.08
4、CAS:?Anhydrous：127-09-3,Trihydrate：6131-90-4
5、Character:?Trihydrate:?It is?colorless transparent crystal or white crystalline powder.?Relative density is 1.45.?In warm and dry air, it’ll easily get weathered. 1g sample could be dissolved in about 0.8mL water or 19mL ethanol. Anhydrous: It is white crystalline coarse powder or block. It’s?odorless,?tastes a bit of vinegary. Relative density is 1.528. Melting point is 324℃. Capacity of moisture absorption?is strong.?1g sample could be dissolved in 2mL water.
6、Usage:?It is used as buffering agent, seasoning reagent, pH regulator, flavor agent, etc .
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.
