日本在线观看,亚洲成av人无码综合在线观看,高潮毛片无遮挡高清免费视频,国产手机在线αⅴ片无码观看

訂購電話:4001650900

Sodium tartrate dibasic dihydrate

Cas:
6106-24-7
Molecular Structure:
MDL:
--MFCD00150035
Molecular Formula:
C4H4Na2O6·2H2O
Molecular Weight:
230.08
Alias:
d-酒石酸鈉,D(-)酒石酸鈉,2,3-二羥基丁二酸鈉 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:
白色結晶或顆粒。易溶于水,不溶于醇,約120℃失去結晶水,水溶液對石蕊呈微堿性。
Quality Standard:
   
   HG/T 3-1101-77
項目Item                                   分析純    化學純
                                            (AR)      (CP)
含量(C4H4Na2O6·2H2O)Assay,%                ≥99.0     98.0          
水溶液反應Water solution reaction           合格      合格
澄清度試驗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
硫酸鹽(SO4)Sulfate ,%                     ≤0.005     0.01
磷酸鹽(PO4)Phosphate,%                    ≤0.002      --
鐵(Fe)Iron,%                              ≤0.002     0.005
重金屬(以Pb計)Heavy metals,%              ≤0.0005    0.001

ACS級
項目名稱                                            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
磷酸鹽(PO4)Phosphate                                 ≤5ppm
硫酸鹽(SO4)Sulfate                                   ≤0.005%
銨(NH4)Ammonium                                      ≤0.03%
鈣(Ca)Calcium                                        ≤0.01%
重金屬(以Pb計)Heavy metals                           ≤5ppm
鐵(Fe)Iron                                           ≤0.001%

Storage:
密封保存。
用途  用釩的微量分析測定,卡爾費休試劑的標定,并用作掩蔽劑,絡合劑,生化試。用于制藥、食品加工、電鍍。劑。
Related Products
上海紫一試劑廠   ? 2025 All Rights Reserved      備案號:滬ICP備19037119號-1     
網(wǎng)站地圖:
試劑CAS試劑分類試劑產(chǎn)品實驗儀器耗材分類實驗儀器耗材新聞資訊
   滬公網(wǎng)安備 31012002003055號