<span id="dvzlx"><dl id="dvzlx"></dl></span>
<span id="dvzlx"></span>
<span id="dvzlx"><dl id="dvzlx"></dl></span><span id="dvzlx"></span>
<th id="dvzlx"><video id="dvzlx"><ruby id="dvzlx"></ruby></video></th>
<span id="dvzlx"><dl id="dvzlx"><ruby id="dvzlx"></ruby></dl></span>
<span id="dvzlx"></span><strike id="dvzlx"><dl id="dvzlx"><del id="dvzlx"></del></dl></strike>
<strike id="dvzlx"></strike>
<span id="dvzlx"><dl id="dvzlx"><ruby id="dvzlx"></ruby></dl></span>
<strike id="dvzlx"></strike>
<strike id="dvzlx"><i id="dvzlx"></i></strike>
<th id="dvzlx"><video id="dvzlx"></video></th>
<span id="dvzlx"></span>

Mainly produces a series of intermediate products based on naphthalene and benzene

+中文版+   +ENGLISH+

PRODUCTS

Ultraviolet absorbent UV-0
Synonyms Ultraviolet absorbent UV-0
CAS NO 131-56-6
Structural formula
Molecular weight 214.22
Molecular Formula C13H10O3
Indicators

Appearance :white or light yellow crystal powder
Melting point :142.0-146.0 ℃
Loss on drying : ≤ 0.1%
Content : ≥ 99.0%
PH value : 6
Chroma : ≤ 3.0
Heavy metal : ≤ 5ppm
Specific absorptivity(290nm) : ≥ 630
Ash : ≤ 0.5%
Nontoxicity: no thrill for skin.
Packing :paper drum 25kg/ drum
Storage: airproof and avoid light
Use :mainly used as light stabilizing agent for plastic, and can protect organic glass and fabric. It is still used as intermediates of synthesizing other ultraviolet absorbents.
Valid period :2 years

HOME  |   ABOUT US  |   PRODUCTS  |   NEWS  |   FACTORY  |   CONTACT  |   中文版

Add:Room 401-418, Building 18, Changjiang Plastics Chemical Market, 600 Tongjiang Middle Road, Xinbei District, Changzhou City
E-mail:xinyan_gu@changyuchem.com

International Trade:
Tel: +86-519-85481997/81187592/85761005
Fax: +86-519-85484533/85761018

Domestic Trade:
Tel: +86-519-85481743/85772200/85761002
Fax: +86-519-85481030/85761058

Copyright(C)2019, Changzhou Chungang Chemical Co., Ltd. All Rights Reserved. Supported by ChinaChemNet ChemNet Toocle Copyright Notice 備案字號:蘇ICP備11031745號

经典香港a毛片免费视频|好看的pLAy海量Av资源|老熟女日日网视频|成本人视频动漫免费WWW|日本道二区高清视频-亚洲 小说区 校园 欧美 都市|亚洲综合色区另类aⅴ