酸式焦磷酸鈉  SODIUM ACID PYROPHOSPHATE

一、化學(xué)名：焦磷酸二氫二鈉，酸式焦磷酸鈉

二、分子式：Na₂H₂P₂O₇

三、分子量：221.94

四、CAS：7758-16-9

五、性狀：白色結(jié)晶性粉末，相對(duì)密度1.862。易溶于水，水溶液呈堿性。不溶于乙醇?？膳cFe²⁺, Mg²⁺形成螯合物。

六、用途：在食品工業(yè)中作緩沖劑、膨松劑、螯合劑、穩(wěn)定劑、乳化劑、色澤改進(jìn)劑。

七、包裝：內(nèi)襯聚乙烯塑料袋，外套復(fù)合塑料編織袋，每袋凈重25kg。

八、貯存與運(yùn)輸：本品應(yīng)貯存在干燥通風(fēng)清潔的庫(kù)房中，裝載運(yùn)輸時(shí)要輕裝輕放，防止包裝破損，防止受潮、受熱，運(yùn)輸過(guò)程中防止雨淋受潮，應(yīng)與有毒物品隔離。

1、Chemical Name: Sodium Acid Pyrophosphate

2、Molecular Formula: Na₂H₂P₂O₇

3、Molecular Weight: 221.94

4、CAS: 7758-16-9

5、Character: It is white crystalline powder. Relative density is 1.862. It’s soluble in water, insoluble in ethanol. Aqueous solution is alkaline. It reacts with Fe²⁺ and Mg²⁺ to form chelates.

6、Usage: In food  industry, it is used as buffering agent, swelling agent, chelating agent, stabilizer, emulsifier and color improver.

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.