<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

1-Naphthol
Synonyms 1-naphthol (α-naphthol)
Domestic patent application number 200410064819.0
Structural formula
Molecular weight 144.17
Molecular Formula

C10H8O

Property

Buff color or iron gray flaky solid. Inflammable, virulent. Has the phenol smell. The color is allowed to be deepened gradually in the storing process. Should evade light and store in d cool and dry place.

Use This product is the basic raw material or the intermediate for the dyestuff, pharmaceutical, pesticide, spicery and rubber aging inhibitor as well as the color former for the color cinefilm.
Specification convention

Index Name

Top Grade Product(pesticide)

First Quality(industrial product)

Appearance

Light off-white to light yellow tabular crystal( The color is allowed to be deepened when store)

Purity %≥

99.5

96

Crystallization point℃≥

94.5

91.5

2-naphthol %≤

0.5

4.5

Moisture %≤

0.1

---

Low boiling pointsubstances %≤

0.1

---

High boiling point substances %≤

0.1

---

Non volatile matter %≤

0.1

---

Specification extra grade Specification

Index Name

Extra Top Grade Product (pharmaceutical)

Extra Pure Grade Product(pharmaceutical)

Appearance

Light off-white to light yellow tabular crystal( The color is allowed to be deepened when store)

Solution state to the alkali

pure clear transparent

Purity %≥

99.9

99.9

99.9

99.9

99.9

99.9

99.9

Crystallization point℃≥

94.5

94.5

94.5

94.5

94.5

94.5

94.5

2-naphthol≤(mg/kg)

1000

500

300

200

100

50

30

Moisture %≤

0.1

0.1

0.1

0.1

0.1

0.1

0.1

Low boiling point substances %≤

0.1

0.1

0.1

0.1

0.1

0.1

0.1

High boiling point substances %≤

0.1

0.1

0.1

0.1

0.1

0.1

0.1

Non volatile matter %≤

0.1

0.1

0.1

0.1

0.1

0.1

0.1

Packing net weight 50kg, woven bag inner lining plastic film.

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