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Naphthalene-2-sulfonic acid

Product Name
Naphthalene-2-sulfonic acid
CAS No.
120-18-3
Chemical Name
Naphthalene-2-sulfonic acid
Synonyms
Dirinal NSK;2-Sulfonaphthalene;2-Naphthalenesulfoni;β-Naphthalenesulfonic;beta-naphthalenesulfonic;beta-naphthylsulfonicacid;2-NAPHTHALENESULFONIC ACI;naphthalene-2-sulfonicaci;BETA NAPTHALENE SULPHONATE;2-NAPHTHALENESULFONIC ACID
CBNumber
CB8118079
Molecular Formula
C10H8O3S
Formula Weight
208.23
MOL File
120-18-3.mol
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Naphthalene-2-sulfonic acid Property

Melting point:
124 °C
Boiling point:
317.43°C (rough estimate)
Density 
1.44 g/cm
refractive index 
1.4998 (estimate)
storage temp. 
Inert atmosphere,Room Temperature
solubility 
water: freely soluble(lit.)
pka
0.27±0.10(Predicted)
Water Solubility 
Soluble in water.
Sensitive 
Hygroscopic
Merck 
6377
CAS DataBase Reference
120-18-3(CAS DataBase Reference)
EPA Substance Registry System
2-Naphthalenesulfonic acid (120-18-3)
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Safety

Hazard Codes 
C,F
Risk Statements 
35-34-11
Safety Statements 
26-36/37/39-45-16
RIDADR 
UN 2583 8/PG 2
WGK Germany 
1
RTECS 
QK1225000
Hazard Note 
Corrosive
TSCA 
Yes
HazardClass 
8
PackingGroup 
III
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H290May be corrosive to metals

H303May be harmfulif swallowed

H314Causes severe skin burns and eye damage

H318Causes serious eye damage

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P330+P331IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
249548
Product name
2-Naphthalenesulfonic acid
Purity
technical grade, 70%
Packaging
5g
Price
$70
Updated
2021/03/22
Sigma-Aldrich
Product number
249548
Product name
2-Naphthalenesulfonic acid
Purity
technical grade, 70%
Packaging
100g
Price
$131
Updated
2021/03/22
Alfa Aesar
Product number
H56685
Product name
Naphthalene-2-sulfonic acid, 98%
Packaging
500g
Price
$293
Updated
2021/03/22
Alfa Aesar
Product number
H56685
Product name
Naphthalene-2-sulfonic acid, 98%
Packaging
100g
Price
$78.3
Updated
2021/03/22
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Naphthalene-2-sulfonic acid Chemical Properties,Usage,Production

Chemical Properties

Nondeliquescent, white plates.Soluble in water, alcohol, and ether. Combustible.

Uses

Starting point in the manufacture of β-naphthol, β-naphtholsulfonic acid, β-naphthylaminesulfonic acid, etc.

Definition

ChEBI: A naphthalenesulfonic acid in which the sulfo group is linked to position 2 of the naphthalene ring.

Purification Methods

Crystallise the acid from conc HCl. The S-benzylisothiuronium salt has m 192o (from aqueous EtOH). [Berger Acta Chem Scand 8 432 1954, Beilstein 11 H 171, 11 IV 527.]

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Naphthalene-2-sulfonic acid Suppliers

Shanghai mayao chemical technology co., ltd.
Tel
021-51068321
Email
my@mychems.com
Country
CHINA
ProdList
58
Advantage
58
Henan Vocas Biotechnology Co., Ltd
Tel
185-3767-1377
Fax
QQ3487632979
Email
vocas@foxmail.com
Country
China
ProdList
4996
Advantage
58
J & K SCIENTIFIC LTD.
Tel
010-82848833- ;010-82848833-
Fax
86-10-82849933
Email
jkinfo@jkchemical.com;market6@jkchemical.com
Country
China
ProdList
96815
Advantage
76
future industrial shanghai co., ltd
Tel
400-0066-400;021-60496031
Fax
021-55660885
Email
sales@jonln.com;sales@jonln.com
Country
China
ProdList
1999
Advantage
65
Alfa Aesar
Tel
400-610-6006; 021-67582000
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30159
Advantage
84
ShangHai DEMO Chemical Co.,Ltd
Tel
400-021-7337 qq:2355568890
Fax
0086-21-50182339
Email
sales@demochem.com; export1@demochem.com
Country
China
ProdList
2582
Advantage
57
BeiJing Hwrk Chemicals Limted
Tel
0757-86329057-
Fax
0757-86311057
Email
sales.gd@hwrkchemical.com
Country
China
ProdList
17295
Advantage
55
Energy Chemical
Tel
021-58432009-
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
43498
Advantage
61
Capot Chemical Co., Ltd
Tel
+86 (0) 571 85 58 67 18
Fax
0086-571-85864795
Email
sales@capotchem.com
Country
China
ProdList
18227
Advantage
66
JinYan Chemicals(ShangHai) Co.,Ltd.
Tel
13817811078;021-50426030
Fax
86-021-50426522,50426273
Email
sales@jingyan-chemical.com
Country
China
ProdList
10006
Advantage
60
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View Lastest Price from Naphthalene-2-sulfonic acid manufacturers

Hebei Guanlang Biotechnology Co., Ltd.
Product
Naphthalene-2-sulfonic acid 120-18-3
Price
US $9.90/KG
Min. Order
1KG
Purity
99%
Supply Ability
5tons
Release date
2021-10-12
Zhuozhou Wenxi import and Export Co., Ltd
Product
Naphthalene-2-sulfonic acid 120-18-3
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-07-10
Zhuozhou Wenxi import and Export Co., Ltd
Product
Naphthalene-2-sulfonic acid 120-18-3
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-07-09

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