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New Order For 1-Naphthol-3,6-disulfonic Acid Disodium Salt CAS No.:20349-39-7
Apr 26, 2018

Hangzhou Shitai Biotech Co., Ltd received customer orders to produce 1-Naphthol-3,6-disulfonic acid disodium salt CAS No.: 20349-39-7 production schedule started in mid May. It is expected to be completed within 10 days. There will be 300kg excess inventory outside of customer request 800kg. The product is stable in quality and is recognized by customers. Welcome customers with pigments and dyestuffs to come to discuss cooperation.


PRODUCT   NAME

1-Naphthol-3,6-disulfonic acid disodium salt

CAS   No.:

20349-39-7

Synonyms:

violet acid disodium salt;

disodium 4-hydroxynaphthalene-2,7-disulphonate;

Formula:

C10H6Na2O7S2

Molecular   Weight:

348.26000

PSA:

151.39000

LogP:

2.51520

 

Structure

image.png                       

 

Description

Appearance & Physical State:

Grey to brownish moist   presscake or powder

Melting Point:

300ºC

Boiling Point:

214-215 °C (16 mmHg)

Flash Point:

201-202°C/9mm

Stability:

Stable under normal   temperatures and pressures.

Storage Condition:

Store in a cool, dry   place. Store in a tightly closed container.

Safety Statements:

26-36

HS Code:

2908999090

WGK Germany:

3

Risk Statements:

R36/37/38

Hazard Codes:

Xi

 

Certificate of Analysis

 

ProductName: 1-Naphthol-3,6-disulfonic acid disodium salt

Cas:        20349-39-7

Batch No.:     20110501

MFG Date:  May.01.2011

Analysis Date: May.01.2011

 

Inspect   Item

Quantity   Standard

Inspection   Result

Appearance

Light   grey or light pink paste

Conforms

Purity  (HPLC)

≥99.0%

99.16%

Coupling   values

≥47.5%

49.20%

Conclusion  

In   accordance with enterprise standard