Description

Antimony Sulfide CAS NO 12627-52-0 is an inorganic compound primarily recognized for its role as a key flame retardant synergist and a source of antimony. This material is essential for enhancing fire safety standards in various polymer and textile applications. It is a critical raw material for manufacturers in the plastics, rubber, paint, and pyrotechnics industries seeking reliable performance and supply chain stability.

Application

• As a flame retardant synergist in conjunction with halogenated compounds for plastics (e.g., PVC, polyolefins) and synthetic rubbers.
• In the production of safety matches and pyrotechnic compositions for its ignition properties.
• As a pigment and coloring agent in the manufacture of paints, ceramics, and glass.
• In the vulcanization process for certain types of red rubber.
• As a lubricant additive and friction material component.
• In infrared-transparent optical devices and military applications requiring camouflage.
• For the production of other antimony compounds and in metallurgical processes.

Basic Information

Product Name	Antimony Sulfide
CAS No.	12627-52-0
Molecular Formula	Sb2S3
Molecular Weight	339.72 g/mol
Synonyms	Antimony(III) Sulfide; Antimony Trisulfide; Diantimony Trisulfide; Stibnite; Antimony Sesquisulfide; Antimony Sulphide; Black Antimony; Needle Antimony; Antimony Glance
EINECS	235-730-1

Quality Control

Our Antimony Sulfide is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise chemical and physical specifications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and compliance with your technical 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. Keep container tightly sealed when not in use to minimize exposure to moisture and air.

Specification

Item	Specification
Appearance	Black or grayish-black powder
Identification (IR)	Conforms
Assay (as Sb2S3)	≥ 99.0%
Antimony (Sb) Content	71.0 - 71.8%
Lead (Pb)	≤ 0.05%
Arsenic (As)	≤ 0.01%
Iron (Fe)	≤ 0.02%
Water Soluble Matter	≤ 0.2%
Particle Size (325 Mesh Residue)	≤ 1.0%
Loss on Drying	≤ 0.5%

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