股市新闻最新消息利好-最近很火的股票-【东方资本】,股市如何当天买卖呢,如何开股票交易账户,什么是股指期货合约

SZSE：002741
Chemical Reagents
Phthalic anhydride?COA Report
  • CAS No.：85-44-9
  • Molecular weight：148.11
  • Molecular formula：C8H4O3
  • UN Code：2214
  • EC No.：201-607-5
  • HS-No：29173500
Information
Specification category：
Product No. Product name specifications
1.19375.018 o-Phthalic anhydride? AR500g
Characteristic： Appearance and properties: white needle crystal.
Relative density: 1.53
Relative vapor density: 5.10
Melting point(℃): 131.2
Boiling point(℃): 295
Concentration: Content: a ≥ 99.7%; two ≥ 99.2%.
Vapor Pressure: 0.13 (96.5 ℃)
Solubility: insoluble in water, soluble in hot water, alcohol, ether, benzene, most organic solvents.
Technical indicators：
Item AR CP
Assay [CH(COO] ≥99.7% ≥99.0%
Melting point(℃)℃ 129～133(1℃) 129～133(2℃)
Residue on ignition(as SO4) ≤0.025% ≤0.05%
Chloride(Cl) ≤0.005% ≤0.01%
Sulfur compounds(as SO4) ≤0.001% ≤0.005%
Heavy metals(as Pb) ≤0.001% ≤0.005%
Hazard characteristics：

IATA-DGR UN 2214 PHTHALIC ANHYDRIDE,8,III

Related Products

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