草莓视频国产-亚洲乱码国产乱码精品精不卡-HD免费看片,国产人成一区二区三区影院,你轻点太大太长太粗太硬,娇小12—13毛片

SZSE：002741
Chemical Reagents
Boric acid?COA Report
  • CAS No.： 10043-35-3
  • Molecular weight：61.83
  • Molecular formula：H3BO3
  • EC No.：233-139-2
  • HS-No：28100090
Information
Specification category：
Product No. Product name specifications
1.14001.030 Boric acid? GR500g
1.14001.040 Boric acid? AR500g
1.14001.050 Boric acid? AR25kg
1.14001.060 Boric acid? AR25kg/Sack
1.14001.070 Boric acid? CP500g
1.14001.080 Boric acid? Spec25kg
1.14001.110 Boric acid? GR25kg
1.14001.120 Boric acid? CP25kg
1.14001.150 Boric acid? AR40kg
1.14001.230 Boric acid? AR25kg
1.14001.250 Boric acid? CP25kg
1.14001.280 Boric acid? 電容級(jí)25kg
1.14001.280 Boric acid? 電容級(jí)25kg/Sack
1.14001.290 Boric acid? Spec25kg
1.14001.300 Boric acid? Spec25kg
Characteristic： Appearance and properties:Colorless microstrip luster pearl triclinic crystals or white powder, greasy feel, no odor
Relative density: 1.44 (15 ℃)
Melting point(℃): 185 (decomposition)
Boiling point(℃): 300
Concentration: Pure
Solubility: soluble in water, soluble in alcohol, ether, glycerol.
Technical indicators：
Item AR CP
Assay(H3BO3) ≥99.5% ≥99.0%
Clarity of solution ≤2 ≤4
Solubility in Ethanol Pass Pass
Insoluble matter in water ≤0.005% ≤0.02%
Substances not volatilized by methanol ≤0.05% ≤0.3%
Chloride(Cl) ≤0.0005% ≤0.002%
Sulfate(SO4) ≤0.002%v≤0.01%
Phosphate(PO4) ≤0.0005% ≤0.003%
Arsenic(As) ≤0.0001% ≤0.0005%
Calcium(Ca) ≤0.002% ≤0.01%
Iron(Fe) ≤0.0005% ≤0.002%
Lead(Pb) ≤0.001% ≤0.003%
Related Products

Copyright ? Guangdong?Guanghua?Sci-Tech?Co.,?Ltd. GuangDong ICP No. 14033791-1