97精品字幕,婷婷性爱五月天,在线观看91AV,A片日韩视频,日本中出素人在线播放

Welcome to visit Xiantao Kanghua Technology Co., Ltd. Website!

Collection   |   中文版  |   English

Xiantao Kanghua Technology Co., Ltd.

Committed to R&D of the aromatic ketone products

Service
Hotline:

Product Detail

1,4-Benzoquinone

 

 

Product category:intermediate

English name:1,4-Benzoquinone

CAS NO:106-51-4

Molecular weight:108.0948

EC NO:203-405-2

Molecular formula:C6H4O2

InChI:InChI=1/C6H4O2/c7-5-3-1-2-4-6(5)8/h1-4H

packaging:35Kg.40Kg fiber can with inner plastic bag

Product introduction :

  Structural formula: 1,4—C6H4O2

  Molecular weight: 108.1

  Quality index: content: ≥99%

Uses:in medical, pesticide, chemical and dyes industry

Alias:

Quinone; p-Benzoquinone solution; 1,4-benzoquinone Quinone; Benzoquinone,90%; p-Benzoquinone 98+ % (dried); p-Benzoquinone; P-quinone; PBQ; cyclohexa-2,5-diene-1,4-dione; cyclohexa-3,5-diene-1,2-dione

Structural formula:

 

Physical and chemical properties:
yellow crystal
melting point 116℃
relative density 1.318
soluble in ethyl alcohol, ether ether; lightly soluble in water
Product uses:
dyes and medical intermediate,rubber antioxidant, polymerization inhibitor, antioxidant, developing agent
dangerous mark:
T:Toxic;

N:Dangerous for the environment;

risks: R23/25:;
R36/37/38:;
R50:;
safety term: S26:;
S28A:;
S45:;
S61:;


[ Return ]
色色无码| AV黄色电影播放| 久草97| 淫淫成人网| 9婷婷在线| 欧美视频黄色片| 男女日日批黄色三级| 日本不卡一本| 超级AV在线| 成人A毛片| 日韩AV一级| 欧美色一本道色视频| 菁菁群交| a片视频网站| av无码高清| 樱桃成人五月色情| AV大片网站| 日本91AV| 免费好屌av| 激情无码网| 久久久视屏AV| av在线观看导航| 欧美偷牌自拍| Av日韩成人| 中文字幕 日韩有码| 成人电影AV| 中国国产黄色Av片| 日韩毛片在线免费观看| a片高清在线观看| 精品福利片| 日韩AV色| 久久曰在线| 淫草网在线| 国产口交自拍| 亚洲成人性感AV在线| 五级婬片A片免费播放| 日本永久视频| 在线免费观看日韩AV| 亚洲av免费在线看| www.色欲丁香婷婷| 毛片电影网|