少妇被猛男粗大的猛进出,亚洲 欧美 动漫 少妇 自拍,日韩免费视频,青春草在线视频免费观看

訂購電話:4001650900

Ammonium tartrate

Cas:
3164-29-2
Molecular Structure:
MDL:
MFCD00013073
Molecular Formula:
C4H12N2O6;(NH4)2C4H4O6
Molecular Weight:
184.15
Alias:
2,3-二羥基-[R-(R*,R*)]-丁二酸二銨鹽 L-Tartraic acid ammonium salt Butanedioic acid, 2,3-dihydroxy-[R-(R*,R*)]-, diammonium salt diammonium l-(+)-tartrate
Product order:
Name Specifications Packing Price Delivery
Ammonium tartrate AR 500g RMB 319 Consulting service
Ammonium tartrate AR 100g RMB 77 Consulting service
Character:
無色結(jié)晶。易風(fēng)化,在空氣中失去氨。溶于水,不溶于醇及丙酮。堿性。150°升華并分解。一般商品常制成25%溶液。
密度 1.6
比旋光度 32.4° (c=1.84, H2O)
水溶性 63 g/L (15°C) 
Quality Standard:
項目Item                                            分析純    化學(xué)純
                                                     (AR)      (CP)
含量(C4H12N2O
6)Assay,%                                         ≥ 99.0    98.0
澄清度試驗Clarity                                    合格      合格
水不溶物Insoluble matter in water,%               ≤ 0.005     0.01
灼燒殘渣(以硫酸鹽計)Ignition residue,%          ≤ 0.01      0.03
氯化物(Cl)Chloride,%                              ≤ 0.001     0.003
硫酸鹽(SO4)Sulfate,%                              ≤ 0.005     0.01
磷酸鹽(PO4)Phosphate,%                            ≤ 0.001      --
鐵(Fe)Iron,%                                      ≤ 0.0005    0.001
重金屬(以Pb計)Heavy metals,%                      ≤ 0.0005    0.001
Storage:
密封保存。
測定鉛、鎳、磷和鈮等的掩蔽劑。作分析試劑和有機合成中間體。
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