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Potassium sodium tartrate tetrahydrate

Cas:
6381-59-5
Molecular Structure:
MDL:
--MFCD00150989
Molecular Formula:
C4H4O6KNa·4H2O
Molecular Weight:
282.22
Alias:
六氟二氢锆酸盐,罗氏盐,洛瑟尔氏盐,四水合酒石酸钾钠 L(+)-Tartaric acid potassium sodium salt Rochelle salt Seignette salt
Product order:
Name Specifications Packing Price Delivery
Potassium sodium tartrate tetrahydrate ACS 500g RMB 140.8 Consulting service
Potassium sodium tartrate tetrahydrate GR 500g RMB 129.8 Consulting service
Potassium sodium tartrate tetrahydrate AR 500g RMB 115.5 Consulting service
Character:
无色半透明结晶或白色结晶性粉末。味咸而苦。在暖空气中稍有风化,100℃时失去结晶3分子水,130-140℃失去全部水分,220℃开始分解。能溶于水,几乎不溶于醇,水溶液对石蕊呈碱性,pH值为7∽8.
熔点:70-80 °C
Quality Standard:
   
   Q/(HG)SJ 017-91
项目Item                  优级纯  分析纯   化学纯
                                 (GR)      (AR)      (CP)
含量(C4H4O6KNa·4H2O)Assay,%    ≥99.5      99.0      98.5
pH(50g/L溶液,25℃)pH of        6.5-8.5   6.5-8.5    6.5-8.5
water solution                  
澄清度试验Clarity              合格   合格    合格
水不溶物lnsoluble matter    
in water,%                      ≤0.003   0.005    0.01
氯化物(Cl)Chloride,%            ≤0.0005  0.001    0.005
硫酸盐(SO4)Sulfate,%          ≤0.003   0.005    0.01
磷酸盐(PO4)Phosphate,%        ≤0.001   0.001      --
硅酸盐(以SiO4计)Silicate,%      ≤0.002      0.005      --
钙(Ca)Calcium,%           ≤0.001      0.002     0.005
铁(Fe)Iron,%               ≤0.0005     0.0005    0.002
铅(Pb)Lead,%                    ≤0.0005     0.0005    0.001
铜(Cu)Copper,%                  ≤0.0005     0.0005    0.001
还原性物质Reducing substances     合格        --       --

ACS级
项目名称                      ACS Grade
含量(C4H4O6KNa·4H2O)Assay     99.0-102.0%
pH(5%溶液,25.0℃)
pH of a 5% solution at 25.0℃  6.8-8.5
水不溶物Insoluble matter       ≤0.005%
氯化物(Cl)Chloride             ≤0.001%
磷酸盐(PO4)Phosphate           ≤0.002%
硫酸盐(SO4)Sulfate             ≤0.005%
铵盐(NH4)Ammonium              ≤0.002%
钙(Ca)Calcium                  ≤0.005%
重金属(以Pb计)Heavy metals     ≤5ppm
铁(Fe)Iron                     ≤0.001%

99.98%:

外观Appearance                          白色结晶或粉末
红外光谱鉴别Infrared spectrometry       Conforms
纯度Purity                              ≥99.98% Based On Trace Metals Analysis By ICP
ICP:                                    Confirms K and Na Components Confirmed
Trace Metal Analysis                    ≤300.0 ppm
(Ba、Ca、Fe、Mg、Zn、Li、Rb、Cs)

Storage:
密封保存。
用途  配制斐林氏溶液,掩蔽剂,尿酸和糖的定量,还原剂测定,血清蛋白生化检验。用于医药;试剂,制镜工业作还原剂,在电讯器材中用以制晶体喇叭或晶体话筒。
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