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        天津供應草酸,GB/t1626-2008草酸

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        天津供應草酸,GB/t1626-2008草酸

        • 所屬分類:天津其他

        • 點擊次數:
        • 發布日期:2016/07/25
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        詳細介紹

        草酸  OXALIC ACID

         

        一、化學名: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:本品為無色透明單斜晶系結晶。通常以二水物存在。熔點101102 ℃。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。二水物易風化失水而成無水草酸。無水物熔點189.5 ℃(分解)。

        六、用途:草酸主要用作還原劑漂白劑。

        七、包裝:內襯聚乙烯塑料袋,外套塑料編織袋,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受潮,應與有毒物品隔離。

         

        質量指標

        Specification

        GB/T 1626-2008

        草酸(H2C2O4·2H2O, w/%   ≥

        AssayH2C2O4·2H2O, w/%  ≥

        96.0

        硫酸根(以SO4計), w/%       ≤

        Sulfates   (SO4) , w/%         ≤

        0.40

        灼燒殘渣, w/%              ≤

        Ignition   Residue, w/%        ≤

        0.15

        重金屬(以Pb計), w/%      ≤

        Heavy   Metals (As Pb) , w/%    ≤

        0.0005

        鐵(以Fe計), w/%           ≤

        Iron   (As Fe) , w/%            ≤

        0.005

        氯化物(以Cl計), w/%       ≤

        Chlorides   (As Cl) , w/%        ≤

        0.01

        鈣(以Ca計), w/%              ≤

        Calcium   (As Ca) , w/%        ≤

        0.0010

         

        1、Chemical Name: Oxalic Acid

        2、Molecular Formula : H2C2O4·2H2O

        3、Molecular Weight: 126.07

        4、CAS6153-56-6

        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.


        相關標簽:草酸銨

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