一、化學名：草酸，又名乙二酸
二、分子式：H2C2O4·2H2O
三、分子量：126.076
四、CAS：6153-56-6
五、性能：本品為無色透明單斜晶系結晶。通常以二水物存在。熔點101～102 ℃。相對密度（19 ℃）1.65。折射率1.440。可溶于水，稍溶于乙醚和乙醇。157 ℃升華。二水物易風化失水而成無水草酸。無水物熔點189.5 ℃（分解）。
七、包裝：內襯聚乙烯塑料袋，外套復合塑料編織袋包裝，每袋凈重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，應與有毒物品隔離
| 質量指標 | Specification | GB/T 1626-2008（氧化法） |
| 草酸（H2C2O4·2H2O）, w/%???????≥ | Content?(H2C2O4·2H2O）,w/%?????≥ | 96.0 |
| 硫酸根（以SO4計）, w/%?????????≤ | Sulfates (as SO4),w/%???????????≤ | 0.4 |
| 灼燒殘渣, w/%?????????????????≤ | Ignition residue,w/%???????????≤ | 0.15 |
| 重金屬（以Pb計）, w/%??????????≤ | Heavy metal (as Pb),w/%????????≤ | 0.0005 |
| 鐵（Fe）,w/%???????????????????≤ | Iron (Fe),w/%??????????????????≤ | 0.005 |
| 氯化物（以Cl計）, w/%??????????≤ | Chlorides (as Cl),w/%???????????≤ | 0.01 |
| 鈣（Ca）, w/%??????????????????≤ | Calcium (Ca),w/%??????????????≤ | ———— |
1、Chemical Name:?Oxalic Acid
2、Molecular Formula:?H2C2O4·2H2O
3、Molecular Weight:?126.076
4、CAS:?6153-56-6
5、Character:?It occurs as?colorless transparent monoclinic system crystal. Usually, it is dihydrated. Its melting point is 101-102?℃. The relative density (19?℃) is 1.65. The 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 Oxalic Acid anhydrous is 189.5?℃?(decomposing).
6、Usage:?It’s used as reducing agent and bleaching agent.
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.
