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Low Iron Industrial Grade Yellow Flakes Sodium Sulfide Na2S 60% CAS 1313-82-2 Factory Direct Supply buy - image1

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Low Iron Industrial Grade Yellow Flakes Sodium Sulfide Na2S 60% CAS 1313-82-2 Factory Direct Supply

Name: Low Iron Industrial Grade Yellow Flakes Sodium Sulfide Na2S 60% CAS 1313-82-2 Factory Direct Supply
Brand: jianxin
SKU: pr2607162271
Price: 1 USD
Availability: InStock

ISO FDA COA 29 Inquiries

Unit Price:

$1-1.3/MT FOB

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CAS No.:

1313-82-2

Grade:

Industrial Grade

Content:

99%

Port:

shanghai

Brand:

jianxin

Packaging:

25kg Kraft Paper Bag

Price valid (until):

2030-01-01

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Shanghai Jianqi Chemical Company

Company Type:

Trader

Location:

China

Qualification:

Main Products:

chemical raw materials

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Product Description
Seller Information
Inquiry History

Description

Product Detail

Low Iron Industrial Grade Yellow Flake Sodium Sulfide, with fixed CAS No.1313-82-2, is a premium inorganic sulfide produced through high-purity brine vulcanization, multi-stage iron removal purification, evaporation concentration and flake molding technology. Different from ordinary red flake sodium sulfide with high iron, our low-iron yellow grade strictly controls iron impurity below 20ppm, solving the problem of darkening, spot and color fading in leather and textile production, widely exported to global tanneries, printing factories, mineral processing plants and environmental water treatment enterprises.

The finished product is uniform bright yellow translucent flake solid with typical hydrogen sulfide odor. It has strong hygroscopicity; exposed to humid air will absorb water and gradually deliquesce, and release toxic H₂S gas when contacting acid. Fully soluble in normal-temperature water to form transparent strongly alkaline solution with excellent reduction and metal ion precipitation capacity, the core functional agent for multiple industrial processing links.

Leather manufacturing is the largest consumption field: low iron sodium sulfide acts as main dehairing auxiliary in liming workshop. It breaks disulfide bonds of keratin in hide hair roots to completely remove hair and epidermis without scratching leather grain surface; ultra-low iron index prevents finished leather from yellow-brown stains, improving leather smoothness and dye uptake uniformity.

Textile printing and dyeing factories use this yellow flake as vat dye reduction agent. It restores insoluble vat dyes into soluble leuco bodies, realizing uniform fabric coloring; low iron avoids gray dark spots on cloth surface, guaranteeing bright and consistent printing color. In mineral flotation industry, sodium sulfide serves as sulfide ore activator to increase floatability of copper, zinc and gold ore, lifting mineral recovery rate and reducing production cost.

For environmental wastewater treatment, sodium sulfide precipitates heavy metal ions such as copper, lead, nickel and cadmium into insoluble sulfide sediment, helping factories meet national discharge standards with higher removal efficiency than traditional lime precipitation. It is also applied as raw material for sulfur dyestuff synthesis and reducing agent in paper kraft cooking process.

Every batch undergoes full-item laboratory inspection before delivery, testing sodium sulfide content, iron content, sulfite impurities and insoluble residues to guarantee stable low iron performance for color-sensitive production lines. As Class 8 corrosive dangerous goods, all export packages adopt double-layer anti-seepage structure (inner PE film bag + outer woven bag) to isolate air and moisture during long-distance sea transportation.

Warehouse storage must maintain airtight, cool, dry and ventilated environment, completely separated from acid products, oxidants, edible raw materials and humid ground to prevent deliquescence and efficacy attenuation. Operators must wear alkali-resistant gloves, protective goggles and gas-proof masks during feeding to avoid skin corrosion and toxic gas inhalation.

We support small trial bag orders for formula debugging and large full-container bulk wholesale with stable monthly output and factory direct competitive price. Complete official COA test report, MSDS safety data sheet and dangerous goods shipping certificates are supplied to assist overseas buyers’ smooth customs clearance and incoming quality inspection.

Low iron premium grade (Fe ≤0.002%), no dark sediment or color stain in dyeing & leather production, stable bright solution color.
Standard Na₂S content ≥60%, controlled low sulfite, thiosulfate and water-insoluble impurities, fewer side reactions and higher production yield.
Regular flake shape with low dust, fast complete dissolution without undissolved residues, suitable for automatic continuous dosing equipment.
Powerful reducing & metal chelating performance: efficient dehairing for leather, strong reduction for vat dyes, rapid precipitation of heavy metals in wastewater.
Wide multi-industry compatibility: tannery, textile printing, ore flotation, water treatment, dyestuff manufacturing, paper kraft cooking.
UN certified dangerous goods double-layer packaging, complete COA, MSDS, IMDG shipping documents, stable bulk stock with factory competitive price.
Strict closed purification & deironing production process, consistent low iron index batch after batch, long-term stable storage under airtight seal.

Shop Low Iron Industrial Grade Yellow Flakes Sodium Sulfide Na2S 60% CAS 1313-82-2 Factory Direct Supply-Detailed Image 1

Items	Specifications
Full Name	Sodium Sulfide Yellow Flakes (Low Iron Grade)
Appearance	Bright yellow uniform translucent flakes
Standard Export Package	25kg woven bag with inner anti-corrosion PE liner

Certificates

Basic Info

Product Name:

Disodium sulfide

Other Name:

Sodium sulfide (Na2S);Sodium monosulfide;Sodium sulphide;Disodium sulfide;Sodium sulfide;Disodium monosulfide;Disodium sulfide (Na2S);NSC 41874;113584-74-0;1447694-91-8

CAS No.:

1313-82-2

UN No.:

1849

Molecular Formula:

Na2S

InChIKeys:

InChIKey=CXPWOVUZRAFMDA-UHFFFAOYSA-N

Molecular Weight:

78.04000

Exact Mass:

77.95000

EC Number:

215-211-5

UNII:

YGR27ZW0Y7

HScode:

2830101000

Categories:

Inorganic Salts

Characteristics

PSA:

25.30000

XLogP3:

-3.5

Appearance:

Multi color crystal,send a pleasing sense of offensive odor

Density:

1.856 g/cm³ @ Temp: 14 °C

Melting Point:

920-950 °C (decomp)

Boiling Point:

174ºC

Water Solubility:

Solubility in water (g/100 g water): 8.1 (-9.0 deg C); 12.4 (0 deg C); 18.6 (20 deg C); 29.0 (40 deg C); 35.7 (48 deg C); 39.0 (50 deg C).

Storage Conditions:

Storage Room low temperature ventilation drying ,Separate storage with oxidizing agents and acids

Explosive limit:

IN PREPN OF MERCAPTANS, SLOW ADDITION OF DIAZONIUM CHLORIDE SALT OF 4-CHLORO-O-TOLUIDINE OR O-NITROANILINE OR M-CHLOROANILINE TO SODIUM SULFIDE...SOLN WILL RESULT IN EXPLOSIONS EVEN AT 5 DEG C.

See More Disodium sulfide Properties 

Hazard Identification

Classification of the substance or mixture

Acute toxicity - Category 4, Oral

Acute toxicity - Category 3, Dermal

Skin corrosion, Sub-category 1B

Hazardous to the aquatic environment, short-term (Acute) - Category Acute 1

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Danger
Hazard statement(s)	H302 Harmful if swallowed H311 Toxic in contact with skin H314 Causes severe skin burns and eye damage H400 Very toxic to aquatic life
Prevention	P264 Wash ... thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/... P260 Do not breathe dust/fume/gas/mist/vapours/spray. P273 Avoid release to the environment.
Response	P301+P317 IF SWALLOWED: Get medical help. P330 Rinse mouth. P302+P352 IF ON SKIN: Wash with plenty of water/... P316 Get emergency medical help immediately. P321 Specific treatment (see ... on this label). P361+P364 Take off immediately all contaminated clothing and wash it before reuse. P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P363 Wash contaminated clothing before reuse. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P391 Collect spillage.
Storage	P405 Store locked up.
Disposal	P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

NO open flames, NO sparks and NO smoking. NO contact with acids or oxidizing agents. Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Separated from acids and oxidants. Keep in a well-ventilated room. Dry.Store in a cool, dry, well-ventilated location. Separate from water, acids, & carbon dioxide. Outside or detached storage is preferred. Immediately remove & properly dispose of any spilled material.

See More Disodium sulfide Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
chemical raw materials

Location:
Building 1, Unit 5, Room 313, Building L, No. 688 Qiushi Road, Jinshuiwei Town, Jinshan District, Shanghai

Average lead Time:
10

Total Annual Revenue:
$1 million-$2.5 million

Total Employees:
11-50

Year of Establishment:
2019

Inquiry History

29 Inquiries

Country	Product	Purchase Quantity	Date Posted
Nicaragua	Sodium Sulfade	1.00 20' Fcl	Nov 10, 2023
India	Sodium Sulfide	1.00 KG	Jul 25, 2024
India	sodium Sulfide	250 G	Jun 4, 2025
India	Sodium Sulfide	1 KG	Jul 24, 2024
Russia	Sodium sulphide	60 MT	Jun 11, 2024
Bangladesh	Sodium Sulfide	100.00 MT	Jun 16, 2026
Thailand	Sodium Sulfide Yellow Flakes	1 KG	May 29, 2026
Nigeria	Sodium Sulphide	75 MT	Mar 23, 2026
Pakistan	Sodium sulfide flakes	10000.00 MT	Aug 27, 2025
Czech	Sodium sulfide	500 KG	Jul 30, 2025
Bangladesh	sodium sulphide flakes red	1 20' Fcl	Nov 8, 2024
Pakistan	Sodium Sulphide Flakes	1.00 MT	Oct 30, 2024
Russia	Sodium sulfide	600 TON	Jun 4, 2024
India	Sodium Sulphide	40.00 MT	Sep 19, 2023
Burkina-faso	SODIUM SULFIDE	25 KG	Aug 21, 2023
Mongolia	Sodium sulfide	2800 TON	Mar 7, 2025
Bangladesh	Sodium sulphide	1 20' Fcl	Jan 9, 2025
Mongolia	sodium sulfide	800 MT	Nov 2, 2024
Turkey	SODIUM SULFIDE	5.00 TON	Jun 6, 2024
Israel	Sodium Suslphide + Sodium Hydrosulphide	20 TON	May 1, 2024

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