日韩在线观看hd高清完整版_成人无码色网视频在线观看_国产成色在线_91久久精品国产性色tv_久久一区福利视频国_亚洲一区精品久久_免费午夜福利_人妻色成人综合_熟年交尾六十路在线播放_午夜影院免费试看五分钟

Welcome to buy our products, we will be happy to serve you, thank you!
Changzhou Dafan Chemical Co., Ltd.
 
     
    Product Center
          Cyclohexanone
          Cyclohexane
          Epsilon-Caprolactam
          Methenamine
          Melamine
          Triethanolamine
 
1,4-Butanediol

Technical

Item

Index

Superior product

Qualified product

Content %≥

99.7

99.5

Color (Pt-Co)????? ≤

10

10

Moisture %≤

0.03

0.05

Appearance colorless transparent liquid
Formula C4H10O2
CAS RN 110-63-4
Standards GB/T24768-2009
Use

(1)It is basic raw material for producing PBT engineering plastic and PBT fiber; 
(2)It is main raw material for producing tetrahydrofuran, which is an important organic solvent; <

 
  Back