被两个男摁住玩弄尿孔的视频|《被按摩的人妻4》BD高清完整版|娇妻互换被高潮了三次|荫蒂每天被三个男人添|边做饭边被躁我和邻居的视频|巜被部长玩弄的人妻

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
欢迎光临： 西宁市| 承德县| 榆树市| 寿光市| 乐业县| 德州市| 綦江县| 沁阳市| 当阳市| 江永县| 公主岭市| 盱眙县| 庄河市| 楚雄市| 来宾市| 垦利县| 沁源县| 万荣县| 苗栗县| 囊谦县| 邯郸市| 会泽县| 苍溪县| 西华县| 永修县| 宝山区| 涿鹿县| 柳江县| 砚山县| 边坝县| 淮阳县| 张家川| 万盛区| 团风县| 江源县| 游戏| 临朐县| 乐都县| 无锡市| 贵阳市| 青浦区|