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檸檬酸氫二銨

一、化學(xué)名:檸檬酸氫二銨,枸櫞酸氫二銨

二、分子式:C6H14N2O7

三、分子量:226.192

四、CAS:3012-65-5

五、性能:無(wú)色細小結晶或白色顆粒。密度為1.48g/mL,熔點(diǎn)185 oC,沸點(diǎn)100oC,溶于水,微溶于乙醇。

六、用途:分析試劑,如作配合萃取劑、配合掩蔽劑、緩沖劑。

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(fēng)清潔的庫房中,裝載運輸時(shí)要輕裝輕放,防止包裝破損,防止受潮、受熱,運輸過(guò)程中防止雨淋受潮,應與有毒物品隔離。

質(zhì)量指標SpecificationFCC VIIHG/T3497-2000
分析純化學(xué)純
含量(以干基計),w/%        ≥Content (On dry basis),w/%    ≥98.099.098.0
氯化物(以Cl計),mg/kg      ≤Chloride (Cl),mg/kg          ≤101020
鐵(Fe),mg/kg              ≤Iron (Fe),mg/kg              ≤10510
鉛(Pb),mg/kg              ≤Lead (Pb),mg/kg             ≤2——————
pH(50g/L溶液,25℃)pH (50g/L solution,25℃)4.5-5.5——————
水不溶物,w/%              ≤Water insoluble,w/%          ≤———0.0050.01
灼燒殘渣(以硫酸鹽計),w/%  ≤Ignition Residue (as SO4),w/%  ≤———0.030.06
硫化合物(以SO4計),w/%    ≤Sulfur compound(as SO4),w/%     ≤0.0050.0050.01
磷化合物(以PO4計),w/%    ≤Phosphorus compound(as PO4),w/%≤———0.0020.005
草酸鹽(C2O4),w/%          ≤Oxalate(C2O4),w/%           ≤———合格
鈣(Ca),w/%               ≤Calcium (Ca),w/%            ≤———0.0050.02
澄清度試驗Clarity test———合格合格
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1、 Chemical Name: Ammonium Citrate Dibasic

2、Molecular Formula: C6H14N2O7

3、Molecular Weight: 226.192

4、CAS: 3012-65-5

5、Character: Colorless fine crystalline or white particles. Density 1.48g/mL. Melting point185 °C, Boiling point100 °C. Soluble in water and soluble in alcohol slightiy.

6、Usage: Analytical reagent, synergetic solvent extraction reagent, masking reagent, buffering reagent.

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.

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