Sodium Sulphide
Dongguan Weiqi Chemical Co., Ltd. was established in March 2019, at a time when China's chemical industry was undergoing rapid growth, with increasing demand for chemical products across various sectors. Founded by industry veterans with extensive experience in chemistry, the company is located in Qiaotou Town, Dongguan City, Guangdong Province. Qiaotou's dynamic industrial ecosystem and convenient transportation facilitate raw material procurement and product distribution.
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Sodium Sulphide in PrintingDyeing & Textile Printing: Acts as a reducing agent in vat dyeing processes to convert insoluble vat dyes into soluble leuco compounds, enabling color absorption by fibers.read more -
![50kg Sodium Sulphide]()
50kg Sodium SulphideA 50 - kilogram quantity of sodium sulphide represents a substantial amount of this chemically active and potentially hazardous compound. Sodium sulphide, with the formula \(Na_{2}S\), is a white...read more
Why choose us
Strict Quality Control
Regular sampling and testing during production help identify any potential quality deviations. Final products undergo rigorous performance and safety tests before delivery. All measures adhere to international quality management standards, ensuring that customers receive only first-class chemical products.
Advanced Facilities
A dedicated R&D laboratory is equipped with sophisticated analytical instruments, enabling our R&D team to conduct in-depth research, develop new formulas, and optimize existing products.
Certificates and Documents
- SGS (Swiss General Standards)
- Hazardous Chemicals Business License
- Non-pharmaceutical Precursor Chemicals Business Filing Certificate (Ether, Acetic Anhydride, Bromine)
- Non-pharmaceutical Precursor Chemicals Business Filing Certificate (Acetone, Toluene, Sulfuric Acid, Potassium Permanganate)
Our Services
We offer free returns and exchanges for quality issues within 30 days, provide SGS inspection reports, and offer long-term discounts to loyal customers.
Sodium sulfide is the chemical compound with the formula Na2S, or more commonly its hydrate Na2S·9H2O. Both the anhydrous and the hydrated salts are colorless solids, They are water-soluble, giving strongly alkaline solutions. When exposed to moist air, Na2S and its hydrates emit hydrogen sulfide, which smells like rotten eggs. Some commercial samples are specified as Na2S·xH2O, where a weight percentage of Na2S is specified.
Commonly available grades have around 60% Na2S by weight, which means that x is around 3. Such technical grades of sodium sulfide have a yellow appearance owing to the presence of polysulfides. These grades of sodium sulfide are marketed as 'sodium sulfide flakes'.
Product Parameters
|
English name |
SodiuM sulfide |
|
Synonyms |
Sodium monosulfide, Sodium sulphide, Sodium sulfuret |
|
CAS |
1313-82-2 |
|
EINECS |
215-211-5 |
|
Chemical formula |
Na2S |
|
Purity |
60% |
|
Appearance |
Yellow flakes |
|
Applications |
Used in the manufacture of dyes, sulfides, and as an ore flotation agent, rawhide dehairing agent, paper cooking agent, etc. |
|
Grade |
Industrial Grade |
|
Package |
25kg bag/1000kg bag |
|
Marker |
Customizable |
Grade Standard: Industrial Grade
|
ITEM |
STANDARD |
STANDARD |
STANDARD II |
STANDARD III |
STANDARD |
STANDARD |
|
Fe |
10ppm max |
20ppm max |
30ppm max |
80ppm max |
150ppm max |
1500ppm max |
|
Na2S |
60%min |
60%min. |
60%min. |
60%min. |
60%min. |
60%min. |
|
Water insolubles |
0.03%max |
0.10%max. |
0.18%max. |
0.20%max. |
0.30%max. |
0.40%max. |
|
Na2CO3 |
1.80%max |
1.80%max. |
1.80%max. |
2.00%max. |
3.00%max. |
5.00%max. |
|
Na2SO3 |
1.00%max |
1.80%max. |
1.80%max. |
2.00%max. |
2.00%max. |
2.00%max. |
|
Na2S2O3 |
2.00%max |
2.00%max. |
2.00%max. |
2.00%max. |
2.00%max. |
2.00%max. |
|
Colour |
Yellow |
RED |
||||
Sodium sulfide is the chemical compound with the formula Na2S, or more commonly its hydrate Na2S·9H2O. Both the anhydrous and the hydrated salts are colorless solids, They are water-soluble, giving strongly alkaline solutions. When exposed to moist air, Na2S and its hydrates emit hydrogen sulfide, which smells like rotten eggs. Some commercial samples are specified as Na2S·xH2O, where a weight percentage of Na2S is specified. Commonly available grades have around 60% Na2S by weight, which means that x is around 3. Such technical grades of sodium sulfide have a yellow appearance owing to the presence of polysulfides. These grades of sodium sulfide are marketed as 'sodium sulfide flakes'.
Application
Sodium sulfide is primarily used in the kraft process in the pulp and paper industry.
It is used in water treatment as an oxygen scavenger agent and also as a metals precipitant;
In chemical photography for toning black and white photographs;
In the textile industry as a bleaching agent, for desulfurising and as a dechlorinating agent;
In the leather trade for the sulfitisation of tanning extracts.
It is used in chemical manufacturing as a sulfonation and sulfomethylation agent.
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.
It is also used during leather processing, as an unhairing agent in the liming operation.
Storage
Store in a cool, dry place. Keep container closed when not in use. Store in a tightly closed container. Keep from contact with oxidizing materials. Keep away from strong acids. Store protected from moisture.
Like sodium hydroxide, sodium sulfide is strongly alkaline and can cause skin burns. Acids react with it to rapidly produce hydrogen sulfide, which is highly toxic.
Packaging & Shipping
Packaging
25 KG/ BAG; Inner bag is woven bag, sewn by machine; the intermediate layer is plastic film, sealed by heat; Outer bag is ink gray netted woven bag, sewn by machine.
Delivery Time
50days
Cautions
Avoid rain, moisture and heat, no breakage, no mix with corrosive matter.
Certificates and Documents
As one of the leading sodium sulphide manufacturers and suppliers in China, we warmly welcome you to wholesale bulk sodium sulphide for sale here and get pricelist from our factory. All chemicals are with high quality and low price.