波多野结衣在线电影-欧美人与性动交α欧美精品-av青青草-超碰99在线-国产视频在线免费观看-日本在线视频播放-久久久久久一区二区三区-免费一级片视频-大粗鳮巴久久久久久久久-亚洲精品69-国产一区在线免费-亚州av综合色区无码一区-国产亚洲色婷婷久久-日爽夜爽-狠狠干狠狠搞-波多野结衣视频播放-视频二区在线观看-国产精品久久久久久婷婷天堂-永久免费看黄网站-九九色在线

<button id="eqixn"></button>

無水醋酸鈉

乙酸鹽 2020年7月24日 1,922

一、化學名：醋酸鈉/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：結晶品（三水）為無色透明結晶或白色結晶粉末，無水物為白色結晶性粗粉或塊狀，無臭，稍有醋樣氣味。結晶品相對密度1.45，在溫暖干燥的空氣中易風化，1g約溶于0.8mL水和19mL乙醇。無水品相對密度1.528，熔點324℃，吸濕性很強，1g約溶于2mL水中。

六、用途：緩沖劑、調味劑、pH值調節劑、增香劑、呈味劑等。

七、包裝：內襯聚乙烯塑料袋，外套復合塑料編織袋包裝，每袋25kg。

八、貯存與運輸：本品應貯存在干燥通風清潔的庫房中，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，應與有毒物品隔離。

質量指標		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	————
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
	結晶品		Trihydrate	36.0-42.0	36.0-41.0
鉀化合物		Potassium Compound		通過試驗	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.