poronovideos人初重口_黑人粗大a片在线观看_美女末成年视频黄是免费网址_另类maturetube富婆

市場價(jià):元價(jià)格:元

  • 中文名稱:B-223二苯基二甲氧基硅烷
  • CAS RN:6843-66-9
  • EINECS號:
  • 分 子 式:C14H16O2Si
  • 分 子 量:244.36100
  • 分子式:
外觀與性狀:
黑色粉末
密度:
1.08?g/mL?at 20?°C(lit.)
沸點(diǎn):
161?°C15?mm Hg(lit.)
熔點(diǎn):
<0oC
閃點(diǎn):
121°C
折射率:

n20/D 1.541


RTECS號:
VV3643332
安全說明:
S28-S37
WGK Germany:
2
危險(xiǎn)類別碼:
R38
海關(guān)編碼:
2931900090
危險(xiǎn)品標(biāo)志:
Xi


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