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
Sodium tetraborate?decahydrateCOA Report
  • CAS No.:1330-43-4
  • Molecular weight:201.22
  • Aliases:Sodium tetraborate
  • Molecular formula:Na2B4O7·10H2O
  • UN Code:1458
  • EC No.:215-540-4
Information
Specification category:
Product No. Product name Specifications
1.01396.030 Sodium tetraborate?decahydrate AR500g
1.01396.040 Sodium tetraborate?decahydrate CP500g
1.01396.050 Sodium tetraborate?decahydrate AR25kg/Drum
1.01396.080 Sodium tetraborate?decahydrate CP25kg/Drum
1.01396.090 Sodium tetraborate?decahydrate AR25kg/Sack
1.01396.100 Sodium tetraborate?decahydrate CP25kg/Drum
1.01396.110 Sodium tetraborate?decahydrate Spec25kg/Sack
Characteristic: Appearance and properties: odorless, colorless, translucent, salty crystals or white crystalline powder.
Relative density: 2.37
Melting point(℃): 741
Boiling point(℃): 1575 (decomposition)
Concentration: pure
Solubility: slightly soluble in ethanol, cold water, easily soluble in hot water.
Technical indicators:
Item AR CP
Content Assay (Na2B4O7 ? 10H2O) ≥ 99.5% ≥ 99.0%
Clarity Clarity of solution ≤ 4 ≤ 6
Hydrochloric acid insoluble Insoluble matter in hydrochloric acid ≤ 0.005% ≤ 0.02%
Chloride Chloride (Cl) ≤ 0.002% ≤ 0.005%
Sulfate Sulfate (SO4) ≤ 0.01% ≤ 0.015%
Phosphate Phosphate (PO4) ≤ 0.002% ≤ 0.005%
Calcium Calcium (Ca) ≤ 0.005% ≤ 0.02%
Iron Iron (Fe) ≤ 0.0003% ≤ 0.0005%
Copper Copper (Cu) ≤ 0.001% ≤ 0.002%
Lead Lead (Pb) ≤ 0.001% ≤ 0.002%
Related Products

Copyright ? Guangdong?Guanghua?Sci-Tech?Co.,?Ltd. GuangDong ICP No. 14033791-1
国产成人精品亚洲日本语言| 亚洲精品无码av天堂| 97超碰中文字幕久久精品| 成人性做爰片免费视频| 久久精品免费观看国产| 成人国产精品无码网站| 久久久久麻豆v国产精华液好用吗| 国产人妻人伦精品欧美| 国产l精品国产亚洲区久久| 亚洲熟妇国产熟妇肥婆| 人妻互换 综合| 国产精品一区二区av片 | 狠狠色色综合网站| 日本三级成本人网站| 国内精品久久久久久99蜜桃| 欧美大荫蒂毛茸茸视频| 日本边添边摸边做边爱边| 人妻精油按摩bd高清中文字幕| 豆国产93在线 | 亚洲| 久久99热精品免费观看| 综合激情久久综合激情| 精品亚洲国产成人av不卡 | 先锋影音xfyy5566男人资源| 久久婷婷五月综合色高清| 99国产精品白浆无码流出| 少妇内射视频播放舔大片| 内射人妻无码色ab麻豆| 亚洲在线国产日韩欧美| 亚洲国产欧美一区三区成人 | 在线观看的网站| 18禁黄网站禁片免费观看| 亚洲狠亚洲狠亚洲狠狠狠| 精品无码国产污污污免费网站国产| 国产精品水嫩水嫩| 国产精品乱码久久久久久小说| 国产亚洲日韩妖曝欧美| 3atv精品不卡视频| 亚洲中文字幕无码久久2017| 亚洲精品专区在线观看| 国产午夜视频在线观看| 国产无遮挡a片又黄又爽漫画 |