Sodium tartrate dibasic dihydrate

MDL：
--MFCD00150035

Molecular Formula：
C4H4Na2O6·2H2O

Molecular Weight：
230.08

Alias：
d-酒石酸钠,D(-)酒石酸钠,2,3-二羟基丁二酸钠 L-(+)-Tartaric acid disodium salt Disodium tartrate dihydrate Sodium tartrate dihydrate

Product order：

Name	Specifications	Packing	Price	Delivery
Sodium tartrate dibasic dihydrate	ACS	500g	RMB 239.8	Consulting service
Sodium tartrate dibasic dihydrate	GR	500g	RMB 242	Consulting service
Sodium tartrate dibasic dihydrate	CP	500g	RMB 176	Consulting service
Sodium tartrate dibasic dihydrate	AR	500g	RMB 206.8	Consulting service

Character：
白色结晶或颗粒。易溶于水，不溶于醇，约120℃失去结晶水，水溶液对石蕊呈微碱性。

Quality Standard：
   
   HG/T 3-1101-77
项目Item                                   分析纯    化学纯
                                            (AR)      (CP)
含量(C4H4Na2O6·2H2O)Assay,%                ≥99.0     98.0          
水溶液反应Water solution reaction           合格      合格
澄清度试验Clarty                            合格      合格
水不溶物Insiluble matter in water,%       ≤0.005     0.01
氯化物(Cl)Chloride,%                      ≤0.002     0.005
硫酸盐(SO4)Sulfate ,%                     ≤0.005     0.01
磷酸盐(PO4)Phosphate,%                    ≤0.002      --
铁(Fe)Iron,%                              ≤0.002     0.005
重金属(以Pb计)Heavy metals,%              ≤0.0005    0.001

ACS级
项目名称　                                           ACS Grade
含量(C4H4Na2O6·2H2O)Assay                           99.0-101.0%
干燥失重Loss on drying                               15.61%-15.71%
pH(5%溶液,25.0℃)pH of a 5% solution at 25.0℃       7.0-9.0
水不溶物Insoluble matter                             ≤0.005%
氯化物(Cl)Chloride                                   ≤5ppm
磷酸盐(PO4)Phosphate                                 ≤5ppm
硫酸盐(SO4)Sulfate                                   ≤0.005%
铵(NH4)Ammonium                                      ≤0.03%
钙(Ca)Calcium                                        ≤0.01%
重金属(以Pb计)Heavy metals                           ≤5ppm
铁(Fe)Iron                                           ≤0.001%

Storage：
密封保存。
用途  用钒的微量分析测定，卡尔费休试剂的标定，并用作掩蔽剂，络合剂，生化试。用于制药、食品加工、电镀。剂。