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供应草酸,GB/t1626-2008草酸

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供应草酸,GB/t1626-2008草酸

详细介绍

草酸  OXALIC ACID

 

一、化学名:草酸,又名乙二酸

二、分子式:H2C2O4·2H2O

三、分子量:126.07

四、CAS6153-56-6

五、性能:本品为无色透明单斜晶系结晶。通常以二水物存在。熔点101102 ℃。相对密度(19 ℃1.65。折射率1.440。可溶于水,稍溶于乙醚和乙醇。157 ℃升华。二水物易风化失水而成无水草酸。无水物熔点189.5 ℃(分解)。

六、用途:草酸主要用作

七、包装:内衬聚乙烯塑料袋,外套塑料编织袋,每袋净重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。

 

质量指标

Specification

GB/T 1626-2008

草酸(H2C2O4·2H2O通天论坛APP, w/%   ≥

AssayH2C2O4·2H2O, w/%  ≥

96.0

硫酸根(以SO4计), w/%       ≤

通天论坛APPSulfates   (SO4) , w/%         ≤

0.40

灼烧残渣, w/%              ≤

Ignition   Residue, w/%        ≤

0.15

重金属(以Pb计)通天论坛APP, w/%      ≤

Heavy   Metals (As Pb) , w/%    ≤

0.0005

铁(以Fe计)通天论坛APP, w/%           ≤

通天论坛APPIron   (As Fe) , w/%            ≤

0.005

氯化物(以Cl计), w/%       ≤

通天论坛APPChlorides   (As Cl) , w/%        ≤

0.01

钙(以Ca计), w/%              ≤

Calcium   (As Ca) , w/%        ≤

0.0010

 

1Chemical Name通天论坛APP: Oxalic Acid

2Molecular Formula : H2C2O4·2H2O

3Molecular Weight: 126.07

4CAS6153-56-6

5Character: It occurs as colorless transparent monoclinic system crystal. Usually, it contains two hydrates. Melting point is 101-102 ℃. Relative density (19 ℃) is 1.65. Refractive index is 1.440. It’s soluble in water, slightly soluble in ether and ethanol. It sublimates at the temperature of 157℃. Dihydrate form effloresces easily and turns to anhydrous form. Melting point of anhydrous Oxalic Acid is 189.5 ℃ (decomposing).

6Usage: It’s used as reducing agent and bleaching agent.

7Packing通天论坛APP: 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.

8Storage 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.


相关标签:醋酸盐

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