Product Name : 

SODIUM HYDROSULPHITE

Overview

  • Other : 

  • CAS No : 

    7775-14-6

  • Einecs No : 

    231-890-0

  • HS Code : 

    2831101000

  • Grade Standard : 

    88%,90%,85%min TECH GRADE

  • Appearance : 

    Free-flowing white crystalline powder

  • Packaging Details : 

    50KG/DRUMS

  • Application : 

    textile dyeing,reduction cleaning and etc.

Product Description

Product name: Sodium Hydrosulphite(Sodium Hydrosulfite)

Mol. Formula: Na2S2O4

Molecular wt.:174.11

Properties: The bulk specific weight is 0.7-1.0g/m, 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

Process

   Manufactured by sodium formate

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

   10 months from the date of packing if stored in a

   sealed Air-tight container.

Grades(Contents)

   Low Purity                       74% Min, & 80% Min.

   Standard Purity                85% Min & 88% Min.

    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.


Others

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NINGBO AUTO VEHICLE CO.,LTD