公钟r18车不适请退,丰满人妻一区二区三区视频53,中文无码av在线亚洲电影,两对夫妻互换睡觉感觉不合适

主站蜘蛛池模板: 清徐县| 奎屯市| 河间市| 新野县| 合山市| 威远县| 久治县| 阿勒泰市| 阜宁县| 建湖县| 札达县| 潍坊市| 扎赉特旗| 太保市| 肇源县| 石柱| 周口市| 望奎县| 靖西县| 潞西市| 五常市| 聂拉木县| 平定县| 松原市| 南郑县| 瑞金市| 乌鲁木齐市| 分宜县| 安阳县| 德惠市| 滁州市| 恩施市| 大关县| 陵川县| 太和县| 曲阳县| 鄯善县| 北辰区| 遵化市| 开阳县| 津市市|
 
Today is:

Products

1,4-Butenediol (Boutique)


Product Name: 1,4-Butylene glycol (boutique) (1,4-Butenediol)
Molecular formula: C4H8O2 Molecular weight: 88.11 CAS No .: 110-64-5
Structure:
   
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: colorless or light yellow color Oily liquid content: ≥ 98.5% Acetylene glycol content: ≤ 0.1%; Butanediol content: ≤ 1%; Water: ≤ 0.3% Cis content ≥ 96.0%
Packing: 200 kg / barrel (galvanized iron drum)
Uses: 1,4-Butylene glycol (boutique) in the production of pharmaceutical production of plant protection agents and pesticides, mainly through the ring-like reaction to form an oxygen ring, the main use for the production of vitamin series and furan pharmaceutical intermediates; Can be used for the production of antioxidants, lithium batteries, LCD TV important additives; can be used for synthetic pesticide intermediates endosulfan; can be used to produce polyester fiber, vinyl ester copolymer, polyurethane, plasticizers and other new materials.

Last page:No Next page: 1,4-Butenediol (Crude)