熟妇勾子乱一区二区三区-亚洲区一区二区三在线观看-日韩国产一级黄片在线-91精品人妻久久久久

Main Products

 Phenoxycyclotriphosphazene Poly(diphenoxy)phosphazene
PRODUCTS
Current Location: HOME >> PRODUCTS
Diphenylphosphine oxide
Structure type:

Product name: Diphenylphosphine oxide; Diphenylphosphane oxide; Diphenylphosphaneoxide

Abbreviation: GC-DPO, DPO

CAS NO.: 4559-70-0

Molecular formula: C12H11OP   

Molecular weight: 202.19

Physicochemical properties: white solid without obvious odor. Melting range is 50~56℃ (lit); boiling point is 329.2℃ (760 mmHg), flash point is 152.9℃.

Technical index:

    1. Appearance: white solid
    2. Content: ≥98.0%
    3. Drying loss: ≤0.2%   

Packing: 20KG/ bag or according to customer requirements packaging (remove the plastic bag)

Storage: keep in cool and dry place, tightly sealed.

Main uses: the product is an important organic phosphorus intermediate that is commonly used in preparing triphenylphosphine oxide Wittig-Horner reaction reagent, and etc.

< BACK >

 
點擊這里給我發(fā)消息
2393526842
 
 
 
 
中文字幕一区二区 在线| 日韩免费一级a毛片在线播放一级| 二次元男生操女生屁眼爽| 非洲大鸡巴操逼黄色录像| 亚洲综合色88综合天堂| 妓女综合网在线观看| 大鸡巴操逼 公司| 久久综合日韩亚洲精品色| 泰国无码AV片在线观看| 国产三级精品久久久久| 国产高清一区二区三区四区色 | 日韩欧美一区二三区风间由美| 骚逼被狂插视频教程| 91麻豆精品福利在线观看| 黄色av手机在线观看| 欧美 日韩 国产 自拍| 国产精品视频美熟女一区二区| 大鸡吧插美女嫩逼| 日韩美女一区二区三区香蕉视频| aaa无码偷拍亚洲| 美女插逼插出淫水来| 咪咪爱一级特黄大片| 国产精品毛片无遮挡高清| 国产成人AV一区二区在线观看| 人人超级碰青青精品| 国产一二三四五自产| 黑丝美女被操到高潮| 亚洲国际精品一区二区| 欧美一区亚洲一区视频在线观看| 日本不卡免费一区二区视频| 大鸡巴射精在小穴动漫版| 亚洲男性天堂一区二区三区| 久久久国产精品亚洲无码| 韩国女主播一区二区视频| 欧美日韩久久久一区二区三区 | 人妻熟女av一区二区三区| 激情五月六月婷婷俺来也 | 国产合区在线一区二区三区| 成人区久久精品一区二区| 神马我不卡手机在线观看| 欧美一区二区三区久久国产精品|