antimony trio ide produce by plasma process

Antimony trisulphide (UK PID) - INCHEM

It is used in the production of antimony trioxide and often is associated with arsenic. It is produced also by the addition of sodium thiosulphate to a solution of an antimony salt. Antimony trisulphide is used as a primer in ammunition and smoke markers.

(PDF) Antimony Production and Commodites

Antimony Production and Commodites. ... Antimony has been produced from ores in over 15 countries. ... offer various grades of antimony trioxide based on the relative tinting strength of their ...

Biomonitoring Summary | CDC

Antimony enters the environment from natural sources and from its use in industry. People are exposed to antimony primarily through food and, to a lesser extent, from air and drinking water. Workplace exposures can occur at smelters, coal-fired plants, and refuse incinerators that process or release antimony.

Extraction of Antimony

US5783166A Process for producing antimony trioxide. US5783166A Process for producing antimony trioxide:Antimony trioxide is a known flame retardant for use in plastics ceramics and the like A process for the production of antimony trioxide comprising the steps of i reacting antimony trisulfide with iron III chloride to produce antimony trichloride and ii hydrolyzing antimony trichloride to ...

Antimony Trioxide - an overview | ScienceDirect Topics

Antimony trioxide (ATO) is commonly used as a co-synergist with halogenated flame retardants to enhance their effectiveness. Recent comprehensive genotoxicity studies and a critical review by the European Commission have indicated that, contrary to the indications of earlier less well authenticated studies, antimony trioxide is not a genotoxic ...

Manufacture of antimony trioxide pigments - IG ...

This invention relates to a process of preparing antimony trioxide pigments. Antimony trioxide generally is prepared, especially for pigment purposes, according to the sublimation process, whereby antimony metal or some of its compounds are burnt in an oxidizing atmosphere and the subliming antimony trioxide is collected in apparatus suitable for this process.

Further Proactive Actions - Chemical Substance Management ...

Antimony is currently essential to protect consumers and to minimise the risk of flammability in some electronic products by using as the anti-flammability assisting agent, primarily as antimony trioxide because it can enhance BFR's flame-retardant effect.

Nomination Background Information Antimony Trioxide

US5783166A Process for producing antimony trioxide. US5783166A Process for producing antimony trioxide:Antimony trioxide is a known flame retardant for use in plastics ceramics and the like A process for the production of antimony trioxide comprising the steps of i reacting antimony trisulfide with iron III chloride to produce antimony trichloride and ii hydrolyzing antimony trichloride to ...

US4347060A - Method for making antimony trioxide powder ...

A method and apparatus for making an antimony trioxide powder having a specific particle size distribution from crude antimony trioxide which contains a small amount of impurities having a higher vaporization temperature by passing the crude antimony trioxide through a plasma arc tail gas reaction zone, vaporizing in a chamber communicating with the reaction zone the antimony trioxide at a ...

Environmental Factor - March 2018: Experts agree that ...

A rigorous process. Expert review, such as the one conducted on antimony trioxide at the Jan. 24 meeting, is an intermediate step in the process for a substance to be listed in the RoC. "NTP prepares the RoC using a four-part, formal process with established listing criteria," said Ruth Lunn, Dr.P.H., director of the NTP Office of the RoC.

Antimony trioxide - Wikipedia

It is produced via two routes, re-volatilizing of crude antimony(III) oxide and by oxidation of antimony metal. Oxidation of antimony metal dominates in Europe. Several processes for the production of crude antimony(III) oxide or metallic antimony from material. The choice of process depends on the composition of the ore and other factors.

The exposure to and health effects of antimony

Public health effects of antimony. The Agency for Toxic Substances and Disease Registry[] has composed a comprehensive account of the public health effects of antimony, including health effects by route of exposure (inhalation, oral, and dermal exposure), toxicokinetics (absorption, distribution, metabolism, and excretion), biomarkers of exposure, and effect, among other chapters.

Antimony Trioxide - Toxicological Risks of Selected Flame ...

OCCURRENCE AND USE. Antimony trioxide is formed by reacting antimony trichloride (SbCl 3) with water.It is used in combination with some brominated flame retardants, and might also be used in conjunction with zinc borate, both within and outside the United States on commercial furniture, draperies, wall coverings, and carpets (R.C.Kidder, Flame Retardant Chemical Association, unpublished ...

Chemie der Erde - Massachusetts Institute of Technology

Antimony trioxide, Sb2O3, is the most important antimony compound produced. Today, antimony trioxide is produced by volatilizing antimony metal in an oxidizing furnace. It is used in halogen compound flame retarding formulations for plastics, paints, textiles and rubber. Most commercial grades of antimony trioxide contain between 99.2% and 99 ...