EDTA二鈉   DISODIUM EDTA

一、化學(xué)名： EDTA二鈉，又名：乙二胺四乙酸二鈉

二、分子式： C₁₀H₁₄N₂Na₂O₈·2H₂O

三、分子量： 372.24

四、CAS:  6381-92-6

五、性狀： 白色結(jié)晶顆?；虬咨粱野咨Y(jié)晶體粉末，無臭，無味，稍有吸濕性。它在空氣中穩(wěn)定，易溶于水，幾乎不溶于乙醇。5%水溶液pH值為4-6。對重金屬離子有很強(qiáng)的絡(luò)合能力，形成穩(wěn)定的水溶性絡(luò)合物，除去和消除重金屬離子或由其引起的有害作用。

六、用途： 可以用作螯合劑，防腐劑，抗氧化增效劑，加工助劑。

七、包裝：內(nèi)襯聚乙烯塑料袋，外套塑料編織袋，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(shí)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。

1. Chemical Name:  Disodium EDTA

2. Molecular Formula:  C₁₀H₁₄N₂Na₂O₈·2H₂O

3. Molecular Weight:  372.24

4. CAS:  6381-92-6

5. Character: It occurs as white crystalline particle or white to gray white crystalline powder, odorless and tasteless. It absorbs moisture slightly. It’s easily soluble in water and almost insoluble in ethanol. PH of 5% aqueous solution is 4-6. Its’ complex capacity is very strong. It reacts with heavy metal ions to form stable soluble complex compound so as to remove these heavy metal ions or the harmful effects caused by them.

6. Usage:  It can be used as chelate agent, preservative, antioxidant and processing aid.

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 & Transportation:  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.