Description

Stibnite CAS NO 1317-86-8 is the primary and most important ore of antimony, a critical metal for modern industry. Its high antimony sulfide content makes it an essential raw material for producing antimony metal and trioxide, which are vital for enhancing material properties like flame retardancy and hardness. This mineral is crucial for manufacturers in the flame retardant, lead-acid battery, ceramics, and metallurgical alloy sectors seeking a reliable and high-purity source of antimony.

Application

• Primary Antimony Production: The principal source for the extraction and refining of metallic antimony.
• Flame Retardant Synergist: Processed into antimony trioxide (Sb₂O₃), a key synergist used in plastics, textiles, rubber, and electronics to enhance fire safety.
• Lead-Acid Battery Manufacturing: Used in lead-antimony alloys for battery grids to improve mechanical strength and deep discharge recovery.
• Metallurgical Alloys: Imparts hardness and mechanical strength to lead (for ammunition, solder) and tin alloys.
• Ceramics & Glass: Acts as a fining agent to remove bubbles in glass and as an opacifier in ceramics and enamels.
• Semiconductor & Infrared Optics: Source material for certain semiconductor applications and in the production of infrared-transmitting glass.
• Pyrotechnics: Used in certain fireworks and safety match compositions.
• Historical & Decorative Uses: Occasionally used as a metallic pigment and historically as "kohl" for cosmetics.

Basic Information

Product Name	Stibnite
CAS No.	1317-86-8
Molecular Formula	Sb₂S₃
Molecular Weight	339.72 g/mol
Synonyms	Antimony(III) sulfide; Antimony trisulfide; Antimonous sulfide; Diantimony trisulfide; Antimony glance; Needle ore; Black Antimony; Stibnite ore; Antimony ore
EINECS	215-255-5

Quality Control

Our Stibnite is sourced and processed to meet stringent quality parameters, with a focus on consistent antimony (Sb) content and minimal impurity levels. We provide material in various grades tailored to industrial needs, from standard metallurgical to high-purity chemical grades. Certificates of Analysis (COA) detailing antimony assay, sulfide content, and trace metal impurities are available for every batch to ensure compliance with your specific application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong oxidizers and acids. For long-term storage, keep containers sealed to prevent oxidation and moisture absorption.

Specification

Item	Specification
Appearance	Dark gray to black crystalline solid / ore
Identification (XRD)	Complies
Assay (as Sb₂S₃)	≥ 90% - 98% (Grade Dependent)
Antimony (Sb) Content	≥ 71% (Typical)
Lead (Pb)	< 0.5%
Arsenic (As)	< 0.2%
Iron (Fe)	< 0.5%
Particle Size	Customizable (Lump, Granular, Powder)

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.