Sodium hydrosulfide flakes

SODIUM HYDROSULFIDE FLAKES

Industrial-grade Sodium Hydrosulfide Flakes with ≥70% NaHS, widely used in mineral flotation, pulp processing, leather treatment, and chemical manufacturing.

CAS NO.
207683-19-0
Purity
≥70% NaHS
Origin
China
MOQ
1,000 kg
Packing
25 / 1,000 kg Bag
Lead Time
15-20 days
ItemStandards
Appearance FlakesYellow, orange-yellow, brown, taupe
OdorStench
DensityNot applicable
Boiling PointNo information available
Melting Point55 °C / 131 °F
Flash Point90 °C / 194 °F
PH11
StabilityHygroscopic.
Temperatures above 50°C. Incompatible products. Exposure
to moist air or water. Keep away from open flames, hot
surfaces and sources of ignition.
Acids, Strong oxidizing agents, Metals, copper
Water Solubility 620 g/L (20°C)

Product description:

Sodium Hydrosulfide Flakes (NaHS 70%) are industrial-grade, hygroscopic flakes with strong reducing properties and high water solubility. The product is commonly supplied in yellow to brown shades and is used in processes requiring sulfide chemistry, mineral activation, reduction, or metal precipitation.

With its practical solid form and consistent NaHS content, Sodium Hydrosulfide is widely used in mining, pulp and paper, leather processing, wastewater treatment, and chemical manufacturing.

Product Applications:

  • Mineral Flotation

Used as an activator and flotation reagent in the beneficiation of copper and other non-ferrous metal ores, particularly in processes involving oxidized minerals.

  • Pulp & Paper Processing

Used as a sulfur makeup chemical in kraft pulping systems to support lignin removal and fiber separation during pulp production.

  • Leather Processing

Applied during hide processing as a reducing and dehairing agent to support efficient hair removal before subsequent tanning steps.

  • Chemical & Wastewater Treatment

Used as a reducing agent, sulfur-containing chemical intermediate, and precipitating agent in selected chemical manufacturing and heavy-metal treatment processes.

Why Choose Our Sodium Hydrosulfide?

Consistent NaHS Content

Controlled ≥70% NaHS content supports stable performance in industrial processing and formulation.

High Water Solubility

Good solubility allows efficient preparation and introduction into suitable industrial process systems.

Multi-Industry Versatility

Suitable for mining, pulp and paper, leather processing, chemical manufacturing, and metal treatment applications.

Technical Documentation Support

TDS, SDS, COA, and relevant batch documentation are available for technical review and purchasing requirements.

Frequently Asked Questions

Sodium Hydrosulfide flakes may range from yellow and orange-yellow to brown depending on production conditions and product characteristics. Color alone should not be used as the primary quality criterion; buyers should refer to the agreed product specification and COA.
Yes. Sodium Hydrosulfide flakes are hygroscopic and can absorb moisture from the air. Containers should therefore remain properly sealed and protected from humid storage conditions.
Direct contact with acids should be avoided because sulfide-containing materials can release hazardous hydrogen sulfide gas under acidic conditions. Compatibility should always be reviewed before use.
Providing the required quantity, destination port or country, preferred packing, application, and expected delivery schedule helps ZXCHEM prepare a more accurate commercial quotation.