成人网站免费观看,99e久热只有精品8在线直播,亚洲综合无码明星蕉在线视频,亚洲精品一区二区三区中文字幕

SZSE:002741
Chemical Reagents
Trisodium citrate?dihydrateCOA Report
  • Molecular weight:294.10
  • Molecular formula:C6H5Na3O7·2H2O
  • EC No.:200-675-3
  • HS-No:29181500
Information
Specification category:
Product No. Product name specifications
1.01456.010 Trisodium citrate?dihydrate AR500g
1.01456.020 Trisodium citrate?dihydrate CP500g
1.01456.030 Trisodium citrate?dihydrate AR25kg/drum
1.01456.060 Trisodium citrate?dihydrate Spec40kg/drum
1.01456.070 Trisodium citrate?dihydrate Spec25kg/Sack
1.01456.120 Trisodium citrate?dihydrate AR25kg/drum
Characteristic: Appearance and properties: colourless or white crystal ,odorlessness
Relative density?(water=1): 1.76
Melting point(℃): 300℃
Concentration: sterling
Solubility: water(25℃) 720 g/L, water(100℃) 1670 g/L, soluble in ethanol(25℃)
Technical indicators:
Item AR CP
Assay(C6H5Na3O7?2H2O) ≥99.0% ≥98.0%
pH valuepH value(50g/L solution,25
℃) 7.5~9.0 7.5~9.0
Clarity of solution Pass3 Pass5
Insoluble matter in water ≤0.005% ≤0.01%
Chloride(Cl) ≤0.001% ≤0.005%
Sulfate(SO4) ≤0.005% ≤0.01%
Total nitrogen(N) ≤0.001% --
Phosphate(PO4) ≤0.002% ≤0.01%
Iron(Fe) ≤0.0005% ≤0.001%
Heavy metals(as Pb) ≤0.0005% ≤0.001%
Readily carbonizable substance Pass --
Related Products

Copyright ? Guangdong?Guanghua?Sci-Tech?Co.,?Ltd. GuangDong ICP No. 14033791-1
隔壁老王国产在线精品| 97无码免费人妻超级碰碰碰| 欧美 日韩 国产 另类 图片区| 无码av大香线蕉伊人久久 | 国产v亚洲v天堂a_亚洲| 国产一区二区三区内射高清| 国产人妻高清国产拍精品| 亚洲日韩av无码不卡一区二区三区 | 精品久久久噜噜噜久久| 日本精品啪啪一区二区三区| 无码成人片在线播放| 亚洲精品1卡2卡三卡4卡乱码| 无码精品视频一区二区三区| 国产人妻| 蜜臀av在线无码国产| 一本色综合久久| 久久av无码精品人妻糸列| 18禁免费观看网站| 色欲狠狠躁天天躁无码中文字幕| 久久午夜私人影院| 色翁荡息又大又硬又粗视频| 亚洲国产成人精品无码区在线| 国产精品一区二区亚瑟不卡| 艳z门照片无码av| 成人精品天堂一区二区三区| 精品无人区卡卡二卡三乱码| 裸体女人高潮毛片| 免费的黄网站在线观看| 国产在线亚州精品内射| 无码av人片在线观看天堂| 亚洲精品美女久久7777777| 久久婷婷五月综合色区| 白又丰满大屁股bbbbb| 成人免费无码av| 亚洲精品国产av成拍色拍个| 国内精品久久久久久99| 日本无遮挡真人祼交视频| 亚洲狼人伊人中文字幕| 成熟丰满熟妇高潮xxxxx视频| 中文字幕人妻被公上司喝醉506| 熟妇激情内射com|