• <dd id="jsynh"></dd>

    1. 高潮又爽又黄又无遮挡免费,国产强被迫伦姧在线观看无码,亚洲精品无码gv在线观看,一个人在线视频免费观看www
      Today is:


      1,4-Butenediol (Crude)

      Product Name: 1,4-Butylene glycol (crude) (1,4-Butenediol)
      Molecular formula: C4H8O2 Molecular weight: 88.11 CAS No .: 110-64-5
      Physical properties: Boiling point: 84 ° C; Relative density: 1.07; Refractive index: 1.477; Flash point: 128 ° C. Soluble in water, ethanol, acetone. Almost insoluble in lower aliphatic or aromatic hydrocarbons.
      Appearance: Amber liquid
      Content: ≥ 96.0% acetylene glycol content: ≤ 0.5%; butanediol content: ≤ 1%; water: ≤ 1.5%
      Packing: 200 kg / barrel (painted iron drum)
      Uses: 1,4-Butylene glycol (crude) mainly through the ring-like reaction to form an oxygen ring, the main use for the production of vitamin B6 and furan pharmaceutical intermediates; can be used for the synthesis of pesticide intermediates endosulfan; can be used to produce poly Ester fibers, vinyl ester copolymers, polyurethanes, plasticizers, and the like.

      Last page:1,4-Butenediol (Boutique) Next page: 2-Butyne-1,4-diol