EDTA 二钠

EDTA二钠   DISODIUM EDTA

一、化学名： EDTA二钠，又名：乙二胺四乙酸二钠

二、分子式： C₁₀H₁₄N₂Na₂O₈·2H₂O

三、分子量： 372.24

四、CAS:  6381-92-6

五、性状： 白色结晶颗粒或白色至灰白色结晶体粉末，无臭，无味，稍有吸湿性。它在空气中稳定，易溶于水，几乎不溶于乙醇。5%水溶液pH值为4-6。对重金属离子有很强的络合能力，形成稳定的水溶性络合物，除去和消除重金属离子或由其引起的有害作用。

六、用途： 可以用作螯合剂，防腐剂，抗氧化增效剂，加工助剂。

七、包装：内衬聚乙烯塑料袋，外套塑料编织袋，每袋25Kg。

八、贮存与运输：本品应贮存在干燥通风清洁的库房中，装载运输时要轻装轻放，防止包装破损，防止受潮、受热，运输过程中防止雨淋受潮，应与有毒物品隔离。

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.