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SODIUM SULFIDE (Sulphide)

Sodium sulphide is the alkaline salt Na2S, supplied by RXSOL as yellow 60% flakes (Na2S 55–60%, sodium hydrosulphide 2.5% max, thiosulphate 2% max, chloride 1% max). It dissolves to a strongly alkaline solution and releases hydrogen sulphide in moist air — the rotten-egg smell. Industrial uses: unhairing hides in tanneries, making sulphur-black dyes, ore flotation, precipitating heavy metals from waste water, kraft pulping liquor, desulphurising viscose rayon, rubber chemicals, polysulphide elastomers and enhanced oil recovery. It is corrosive (DG) and is stored dry, dark and below 40 °C.
Part number
RXSOL-19-1622-025
Brand
RXSOL
SODIUM SULFIDE (Sulphide)

Overview

SODIUM SULFIDE, Sulphide exporter and supplier. Sodium Sulfide 60% Flakes

Sodium sulfide is the chemical compound with the formula Na2S and it has an antfluorite structure. It’s a yellow appearance, water-soluble salts that give strongly alkaline solutions. When exposed to moist air, Na2S emit hydrogen sulfide, which smells like rotten eggs. 

Technical specifications

SODIUM SULPHIDE
Test Results

Colour

Yellow
Sodium Sulphide (as Na2S) % by wt.
55% to 60%
Sodium Hydro Sulphate (AS NaHS) % by wt.
Max. 2.50
Sodium Compounds (AS Na2S2O3) % by wt.
Max. 2.00
Sodium Sulphate (AS Na2S2O4) % by wt.
Max. 0.20
Sodium Chloride (AS Nz01)
Max. 1.00
Water insolubles (other than Iron compounds) % by wt.
Max. 0.25

Applications

Sodium sulfide chemical formula Na2S.
Sodium sulfide is used in the pulp and paper industry, water treatment, textile industry, and various chemical manufacturing processes including the production of rubber chemicals, sulfur dyes and oil recovery.

Key properties include:
 
  • High solubility in water
  • Strong alkaline nature
  • Reactive in nature
 
Understanding these properties allows industries to harness sodium sulfide effectively. Production methods ensure its availability in the required purities and forms necessary for industrial applications. As a result, sodium sulfide continues to be a cornerstone in various manufacturing processes.
 
Key Sodium Sulfide Applications
 
Sodium sulfide is integral to various industrial applications. Its chemical properties enable its use in diverse processes. Industries such as pulp and paper, leather, water treatment, and mining rely heavily on this compound. The following sections explore sodium sulfide’s role across different sectors:
 
Pulp and Paper Industry 
 
In the pulp and paper industry, sodium sulfide is crucial for the Kraft process, which breaks down wood chips into pulp. Sodium sulfide acts as a powerful reducing agent, aiding in lignin removal, which is essential for producing high-quality paper products. Without sodium sulfide, the efficiency of paper production would decrease significantly.
 
Leather Tanning and Processing
 
The leather industry benefits greatly from sodium sulfide, primarily in the dehairing process. Sodium sulfide helps efficiently remove hair from animal hides, preparing them for further processing into leather goods. The use of sodium sulfide ensures a smoother and more consistent final product.
 
Water Treatment and Corrosion Prevention
 
Sodium sulfide plays a crucial role in water treatment by acting as an oxygen scavenger. This prevents corrosion in pipelines by removing oxygen, thereby protecting metal components from rust. This protection significantly extends the lifespan of infrastructure. Efficient water treatment processes rely on sodium sulfide to maintain system integrity.
 
Mining and Ore Processing
 
In mining, sodium sulfide is used as a flotation agent to separate valuable minerals from ores. Sodium sulfide enhances the separation process by improving mineral recovery rates, ensuring the efficient extraction of desired metals. Ore processing would be less efficient without this critical compound.
 
Photographic and Dye Industries
 
Sodium sulfide is utilized in the photographic industry as a color developer, aiding in the formation of images on film. In the dye industry, it plays a role in synthesizing a wide range of dyes, which are essential for coloring textiles and other materials. Sodium sulfide’s versatility as a chemical reagent benefits these industries.
 
Textile Industry
 
In textiles, sodium sulfide is crucial for sulfur dyeing processes, helping to bind dyes to fabric fibers effectively. By reducing excess dye, it ensures vibrant, uniform colors, resulting in high-quality textile products with consistent coloring. Sodium sulfide’s application in textiles highlights its importance in dyeing technology.

Dosage and directions

The solution of Sodium Sulphide obtained from the process is concentrated to 10-12% and is available at different percentages in tanker loads. In Industries Na2S is produced by carbothermic reduction of sodium sulfate often using coal. It is used in the production of rubber chemicals, sulfur dyes and other chemical compounds. It is used in other applications including ore flotation, oil recovery, making dyes, and detergent.

Characteristics and notes

  • Used as Depilatory reagent and in pharmaceutical Industries.
  • Used in obtaining the sulphur Black Dyes.
  • Used in Ore Floatation.
  • Used in Engraving and also used as analytical reagent.
  • Used for removing sulphur in viscous Rayon Industry.
  • Used in Industries to remove heavy metals from waste water.
  • Used in the manufacture of lubricating oils.
  • Used in the production of polysulphide elastomers.
  • Used in Synthetic cooking liquor.

Safety and SDS

Read the safety data sheet before handling. Wear suitable gloves and eye protection.

View safety data sheet
Product Name RXSOL-19-1622-025
Product Type Sodium Sulfide

 Company Details:

RX MARINE INTERNATIONAL
105, A wing , BSEL , TECH PARK.
VASHI ,NEW BOMBAY 400703 INDIA

Stock Point : Mumbai, Kandla, Kolkata, Chennai, Fujairah, Muscat, Kenya, Canada

Phone +91 22 27815541
Fax +91 22 2781 1318 :::AOH :0091 9821214367
Email rxsolchemicals@gmail.com
SARA 313 Component  CAS Number Percent Comp. Dimension
 
Exposure
 Limits
 
Sodium Sulfide 1313- 84-4   55-60%  W/V TXDS: orl-rat
 LD: 200
mg/Kg

May be harmful if swallowed. May cause irritation. Avoid breathing vapours, or dust. Use with adequate ventilation. Avoid contact with eyes, skin, and clothes. Wash thoroughly after handling.

Emergency Overview: Caution Liquid May Be Harmful. Avoid Ingestion, And Contact With Skin, Eyes Or Clothing. If Ingested, Do Not Induce Vomiting. Dilute With Water, Or Milk, And Get Medical Attention. Contact With Acids Produce Hydrogen Sulfide Gas.

Inhalation: May cause mild irritation of the respiratory tract. Symptoms may include coughing, dizziness, nausea and headache.

Ingestion: May cause a sore throat, vomiting, diarrhoea, stomach upset and effects of inhalation.

Skin: May cause irritation, redness, and pain.

Eye Contact: May cause irritation, redness, pain, and tearing.

Chronic Exposure: No Information Found.

Aggravated by Exposure: No Information Found.

May be harmful if swallowed. May cause irritation. Avoid breathing vapours, or dust. Use with adequate ventilation. Avoid contact with eyes, skin, and clothes. Wash thoroughly after handling.

 

SKIN:

Remove contaminated clothing. Wash exposed area with soap and
water. if irritation persists, seek medical attention.
 

  EYES: Wash eyes with plenty of water for at least 15 minutes, lifting lids occasionally.
Seek Medical Aid.
  INHALATION: Remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen
 
  INGESTION If swallowed, induce vomiting immediately after giving two glasses of water. Never give anything by mouth to an unconscious person.

Fire Extinguisher Type

Any means suitable for extinguishing
surrounding fire

Fire / Explosion Hazards Contact with acids will liberate poisonously flammable hydrogen Sulfide Gas.
Fire Fighting Procedure Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and clothing.

Absorb spill with inert material, then place in a chemical waste container. Dispose of in a manner consistent with federal, local law.

Ventilate Area of Leak or Spill. Wear Appropriate Personal Protective Equipment as Specified in Section 8. Contain and Recover Liquid when Possible. Collect Liquid in an Appropriate Container or Absorb with an Inert Material (e.g., Vermiculite, Dry Sand, Earth),
and Place in a Chemical Waste Container. Do Not Use Combustible Materials, such as Saw

Store in a cool dry place. Do not get in eyes, on the skin, on clothing. Wash thoroughly after handling

Respiratory Protection

 None required

Ventilation  Local 
OTHER Mechanical
Protective Gloves

Gloves to prevent skin exposure as rubber or vinyl  

EYE PROTECTION Splash Goggles
Other Protective Equipment Wear appropriate clothing to prevent skin exposure
BOILING POINT  ~100° C
Vapour PRESSURE  Information not available
MELTING POINT ~0° C
Vapour DENSITY  Information not available
EVAPORATION RATE  N/A
Appearance /Odors Clear yellow-green liquid with a Sulfur odor
Flash Point Dust. Maybe combustible at high temp
Specific Gravity   ~1.1
Percent Volatile by ~90%
Evaporation Standard  
Auto Ignition Temp

Not applicable

Lower Flamm. Limit in Air

Not applicable

Upper Flamm. Limit in Air Not applicable
Solubility in Water Soluble

STABILITY

Stable

CONDITIONS TO AVOID

Avoid contact with incompatible
materials.

MATERIALS TO AVOID

 Strong oxidizers, acids, metals
(Aluminum, Copper, Zinc and their

HAZARDOUS DECOMPOSITION PRODUCTS

See section 10

HAZARDOUS POLYMERIZATION

not expected to occur
Conditions to Avoid  None known

Carcinogenic References: NTP Carcinogen - Known: No, IARC Category- None

Environmental Fate: No Information Found.

Environmental Toxicity: No Information Found.

Dilute with Water and Flush to Sewer if Local Ordinances allow, Otherwise, Whatever Cannot be saved for recovery or recycling should be managed in an appropriate and approved waste Disposal Facility. Processing, use or Contamination of this product may change the waste management options. State and Local Disposal Regulations may Differ from Federal Disposal Regulations. Dispose of Container and Unused Contents in Accordance with Federal, State and
Local Requirements.

DOT Classification: Not Regulated

DOT Regulations may change from time to time. Please consult the most recent D.O.T. regulations.

CAS# 1313-84-4 is not on the TSCA Inventory. It is a hydrate and exempt from TSCA Inventory
requirements (40CFR720.3(u)(2)).

Contact with acids will liberate poisonous flammable hydrogen sulfide gas. Effects of overexposure / Target organs: Nerves, Cardiovascular system. Inhalation may cause irritation of mucous membranes and respiratory tract. Skin contact may cause irritation and burn to the eyes and skin. The material may be absorbed through the skin causing toxicity similar to hydrogen sulfide poisoning. Ingestion of this material may be toxic. Hydrogen sulfide may be produced in the intestinal tract. The material is corrosive and may produce intestinal and oesophagal burns. First Aid:
Inhalation: remove to fresh air. If ingested, seek medical attention,

                                                              Flammability

Health                                                                                                      Reactivity

                                                                                          

Revisions

  NFPA
 7/30/2010  0.1  updated msds to 16 section from 10 section msds. STN
  0

The information herein is believed to be accurate and is offered in good faith for the user' consideration and investigation. No warranty either expressed or implied is made for the completeness or accuracy of the information whether originating from the above-mentioned company or not. Users of this material should satisfy themselves by an independent investigation of current scientific and medical knowledge that the material

DISCLAIMER OF LIABILITY :The information in this SDS was obtained from sources which we believe are reliable. However, the information is provided without any warranty, express or implied, regarding its correctness. The conditions or methods of handling, storage, use or disposal of the product are beyond our control and may be beyond our knowledge. For this and other reasons, we do not assume responsibility and expressly disclaim liability for loss, damage or expense arising out of or in any way connected with the handling, storage, use or disposal of the product. This MSDS was prepared and is to be used only for this product. If the product is used as a component in another product, this MSDS information may not be applicable

Request the signed SDS as PDF

Availability

SODIUM SULFIDE Sulphide exporter and supplier in Mumbai, Kolkata, Chennai, Kandla, Visakhapatnam, Dubai, Ajman, Abudhabi, Sharjah, Fujairah, Muscat, Sohar, Barka, Oman, Canada, Nairobi, Kenya, Jinja Uganda, Sudan, Yemen AFRICA And in India RXSOL Sodium Sulfide Supplier in Surat Gujrat.

Our stock points and branches

Frequently asked questions

What colour is Na2S?

Pure sodium sulphide is colourless/white; commercial flakes are yellow to red-brown from polysulphide and iron traces.

How is it used to remove heavy metals from effluent?

Dosed to precipitate metal sulphides (Cu, Pb, Zn, Hg, Cd) at controlled pH; the sludge is filtered. Keep the pH alkaline to avoid H2S release.

Packing and transport?

25 kg PE bags; UN 1849 class 8; MSDS and TREM card supplied.