Company Introduction

Chem Color International is the Sole Agent of Guangdi Maoming Chemical Co., Ltd.,Our principal located in the Maoming National Hi-Tech Industrial Development Zone in Guangdong, is a comprehensive chemical enterprise whose business covers the production, storage, transportation, sales and service of chemical products.

Our Principal is the largest sodium hydrosulfite(sodium dithionite) manufacturer in China,After registering the company in June 2012, he started developing the construction plan for manufacturing campus. As a professional manufacturer, product has already been sold all over the world. Guangdi Chemical is one of the enterprises strongly supported by the national high-tech industry park and the sole sodium hydrosulfite producer in Guangdong, ranking top in terms of overall capabilities in the industry around the world.

Products

CAS NUMBER
7555-14-6
EN NUMBER
231-890-0
STRUCTURE
CERTIFICATE
ISO9001 : IDO14001: ISO18001
PACKAGE
50 KG / 100 KG / 200 KG PACKE IN IRON DRUMS
USAGE
Requires reducting agent during the dyeing process. is able to minimize damage risk in indigo dyeing and finally guarantee the Denim Coloration quality efficiently.

Sodium Hydrosulfite 88+% Technical Grade
CAS Number
7775-14-6
Molecular Formula
NaO2SSO2Na
Molecular Weight
174.10
Applications

Reducing Agent, Sulfonating Agent, Textile Dyeing, Pulp and Kaolin Bleaching, Leather, Foods and Beverages, Polymers, Photograghics, Chemical processing, cleaners, water treatment, gas purification, and environmental improvement.

Sales Specification
Package

50 KG Iron Drum, 21 M. ton in 20 FT FCL
Proper shipping name: Sodium Dithionite
UN No.: 1384
Hazard Class: 4.2
Packing Group: II

Sodium Hydrosulfite 88+% Technical Grade
Mol. Formula
Na2S2O4
Molecular wt
174.11
Application

Textile dyeing,reduction cleaning and etc.
Properties: The bulk specific weight is 0.7-1.0g/m3 , dissolve in water, slightly dissolve in ethanol. Give off heat and cause combustion easily. Spontaneous decomposition occurs when the temperature is higher than 85℃, heats up to 190℃cause detonation. Self-ignition point is 250℃.


Items
Specifications
Appearance
Free-flowing white crystalline powder
Chemical Formula
Na2S2O4
Molecular wt
174
Bulk Density
0.9
Melting Point
>300℃ (Decomposes)
Solubility
Soluble in water, insoluble in alcohol and methanol
Odour
None or slightly smell of sulfur dioxide
Shelf Life
12 months from the date of packing if stored in a sealed Air-tight container
Grades(Contents)
High Purity-----------90% Min.
Application
i)Strong Reducing Agent.
ii)Dyeing, Printing and Stripping of Vat Dyes in Textiles.
iii)Bleaching Sugar, Soap, Oils, Minerals Wood Pulp, Ceramics and Chemicals. Synthetic Rubbers.
iv)Discoloration of Effluent.
Packing
50 kg net in iron drum with double plastic liners
Storage Stability
Keep in closed or covered containers when not in use. Store in cool dry place with adequate ventilation. Do not store near oxidants, acids or combustible materials.
Safety Precautions
In case of fire, use sand or use Carbon Dioxide fire extinguisher. Do not use water.
Shipping Details
One FCL of 20 Feet can accommodate 21 MT
UN No
1384
IMCO Class
4.2
IMDG Page
4262
HS CODE
2831.101
CAS No.
7775-14-6
Package Class
II
Warning
Flammable! May spontaneously ignite in moist air or upon contact with water

Quality Control

Chem Color International always put quality on the priority. The products produced by us is strictly in line with the international standard like ISO. Our technical team is composed of professional experts in this field, who could offer you technical advise whenever you turn to us.

Technical Parameters

Item Technical Grade Food Grade
90% Grade 88% Grade 85% Grade
Na2S2O4 ≥90% ≥88% ≥85% ≥85%
Iron(Fe) ≤20ppm ≤20ppm ≤20ppm ≤20ppm
Zinc(Zn) ≤1ppm ≤1ppm ≤1ppm ≤1ppm
EDTA / / / Qualified
Arsenic / / / ≤1ppm
Other heavy metal(as Pb) / / / ≤1ppm
Formate / / / ≤0.05%
Solution Appearance Clear Clear Clear Clear
Water Insolubles ≤0.05% ≤0.05% ≤0.05% ≤0.05%

Certification


ISO

Inquiry

Inquiry Order


Product Name: Sodium Hydro Indigo
Order Number: 1625684492