草酸 OXALIC ACID
二、分子式：H2C2O4·2H2O
三、分子量：126.07
四、CAS：6153-56-6
五、性能：本品為無色透明單斜晶系結(jié)晶。通常以二水物存在。熔點(diǎn)101～102 ℃。相對密度（19 ℃）1.65。折射率1.440?？扇苡谒?，稍溶于乙醚和乙醇。157 ℃升華。二水物易風(fēng)化失水而成無水草酸。無水物熔點(diǎn)189.5 ℃（分解）。
六、用途：草酸主要用作還原劑和漂白劑。
七、包裝：內(nèi)襯聚乙烯塑料袋，外套復(fù)合塑料編織袋包裝，每袋凈重25kg。
八、貯存與運(yùn)輸：本品應(yīng)貯存在干燥通風(fēng)清潔的庫房中，裝載運(yùn)輸時要輕裝輕放，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。
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質(zhì)量指標(biāo)
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Specification
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GB/T 1626-2008
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草酸（H2C2O4·2H2O）, w/% ≥
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Assay（H2C2O4·2H2O）, w/% ≥
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96.0
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硫酸根（以SO4計(jì)）, w/% ≤
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Sulfates (SO4) , w/% ≤
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0.40
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灼燒殘?jiān)? w/% ≤
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Ignition Residue, w/% ≤
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0.15
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重金屬（以Pb計(jì)）, w/% ≤
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Heavy Metals (As Pb) , w/% ≤
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0.0005
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鐵（以Fe計(jì)）, w/% ≤
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Iron (As Fe) , w/% ≤
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0.005
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氯化物（以Cl計(jì)）, w/% ≤
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Chlorides (As Cl) , w/% ≤
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0.01
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鈣（以Ca計(jì)）, w/% ≤
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Calcium (As Ca) , w/% ≤
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0.0010
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1、Chemical Name: Oxalic Acid
2、Molecular Formula : H2C2O4·2H2O
3、Molecular Weight: 126.07
4、CAS：6153-56-6
5、Character: 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).
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.