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:元價格:元

  • 中文名稱:2,2-二甲氧基丙烷
  • CAS RN:77-76-9
  • EINECS號:201-056-0
  • 分 子 式:C5H12O2
  • 分 子 量:104.1476
  • 分子式:
分子結(jié)構(gòu):
密度:
0.84g/cm3
熔點:
-47℃
沸點:
83°C at 760 mmHg
閃點:
-
蒸汽壓:
85.6mmHg at 25°C
物化性質(zhì):
Density 0.847?
Melting_point -47°C?
Boiling_point 83°C?
折射率 1.376-1.378?
flash_point -5°C?
Water_soluble 18 g/100 mL (25°C)?
產(chǎn)品用途:
用作醫(yī)藥中間體,主要用于羥基保護及脫水
危險品標志:
-
風險術(shù)語:
R11:Highly flammable. 高度易燃。
R36/37/38:Irritating to eyes, respiratory system and skin. 刺激眼睛、呼吸系統(tǒng)和皮膚。;
安全術(shù)語:
S16:Keep away from sources of ignition. 遠離火源。
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.不慎與眼睛接觸后,請立即用大量清水沖洗并征求醫(yī)生意見。
S33:Take precautionary measures against static discharges. 采取措施,預防靜電發(fā)生。
S37/39:Wear suitable gloves and eye/face protection戴適當?shù)氖痔缀妥o目鏡或面具。
S9:Keep container in a well-ventilated place. 保持容器置于良好通風處。
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