Antimony(III) oxide is the inorganic compound with the formula Sb2O3. It is the most important commercial compound of antimony. It is found in nature as the minerals valentinite and senarmontite. Like most polymeric oxides, Sb2O3 dissolves in aqueous solutions with hydrolysis.
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 produce antimony trioxide. In a preferred embodiment, the process is substantially closed or near-closed loop. Antimony trioxide is a known flame retardant for use in plastics, ceramics
Jul 01, 2006· Antimony trioxide. 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 carcinogen.
Antimony oxide can be prepared by two processes, the direct and the indirect process. Indirect process. In this process, antimony metal or ores is melted in a furnace to give ATO vapors. The vapors are quenched with air and cooled to convert the vapor to white powder. These powders are further filtered to give antimony trioxide powder. Direct process
Antimony trioxide is a mild primary eye irritant in rabbits. Rat oral LD 50 >34 g kg −1. Mouse intraperitoneal LD 50 =172 mg kg −1. The in vivo genotoxicity of antimony trioxide was studied using single and repeat dose mouse bone marrow micronucleus tests, and the rat liver unscheduled DNA synthesis assay. All three studies were negative.
Preparation. Antimony trioxide is made when antimony is made. Stibnite is heated with air to make antimony trioxide. It is separated from arsenic by the boiling of the arsenic trioxide before the antimony trioxide boils. Antimony trioxide can also be made by a two step process.
Feb 14, 2017· With processing facilities in France, AMG’s capacity is approximately 13k tons of antimony trioxide annually and is one of Europe’s first antimony trioxide manufacturers. Products Main product manufactured is antimony trioxide (ATO or Sb 2 O 3 ) and AMG Antimony is also specialized in a whole range of antimony trioxide based products (dispersions, pastes, and masterbatches).
Antimony trioxide is a white crystalline solid. It is insoluble in water. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. It is used to fireproof fabrics, paper and plastics, as a paint pigment and for many other uses.
Antimony Trioxide Overview. Antimony trioxide is an inorganic compound with the formula Sb 2 O 3. It appears white in color and it is an odourless white crystalline powder, sparingly soluble in water. It is the most important compound prepared from antimony. It is found in nature and extracted from the minerals valentinite and senarmontite.
* Antimony Trioxide may damage the kidneys, liver and heart. IDENTIFICATION Antimony Trioxide is a white, odorless crystalline (sand-like) powder. It is used as a flame-proofing agent, in pigments and ceramics, to stain iron and copper, and to decolorize glass. REASON FOR CITATION * Antimony Trioxide is on the Hazardous Substance List
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 produce antimony trioxide. In a preferred embodiment, the process is substantially closed or near-closed loop. Antimony trioxide is a known flame retardant for use in plastics, ceramics
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 produce antimony trioxide. In a preferred embodiment, the process is substantially closed or near-closed loop. Antimony trioxide is a
Antimony trioxide can also be made by a two step process. Stibnite is burned in air with calcium chloride to make calcium sulfate and antimony trichloride, which is reacted with water to make antimony trioxide. Uses. Antimony trioxide is mainly used as a flame retardant. It is also used to make glass, enamel, and ceramic opaque (not clear
Antimony trioxide, also called antimony white, has the formula Sb203 with a structure dependant on the temperature. It is used as a flame retardant, pigment, and catalyst. Antimony trioxide is mainly produced via the smelting of stibnite ore, which is oxidized to crude Sb2O3 using furnaces operating at approximately 850 to 1,000 °C.
Oxide of trivalent (+3) antimony and most commercially significant form of antimony. Primarily used as a synergist for halogenated flame retardants in plastics, rubber, and textiles, all of which are used in a wide variety of consumer products.
Antimony(III) oxide is the inorganic compound with the formula Sb 2 O 3.It is the most important commercial compound of antimony.It is found in nature as the minerals valentinite and senarmontite. Like most polymeric oxides, Sb 2 O 3 dissolves in aqueous solutions with hydrolysis.A mixed arsenic-antimony oxide occurs in the nature as the very rare mineral stibioclaudetite.
Antimony trioxide; CASRN 1309-64-4 Human health assessment information on a chemical substance is included in the IRIS database only after a comprehensive review of toxicity data, as outlined in the . IRIS assessment development process. Sections I (Health
* Antimony Trioxide may damage the kidneys, liver and heart. IDENTIFICATION Antimony Trioxide is a white, odorless crystalline (sand-like) powder. It is used as a flame-proofing agent, in pigments and ceramics, to stain iron and copper, and to decolorize glass. REASON FOR CITATION * Antimony Trioxide is on the Hazardous Substance List
The Oeko-Institut has recommended against a restriction of antimony trioxide (ATO) in electrical and electronic equipment under the EU’s Restriction of Hazardous Substances (RoHS) directive. It notes that use of the substance as a flame retardant synergist means that smaller amounts of halogenated flame retardants are required and that the presence of antimony alongside halogenated flame
Antimony is a silvery-white metal that is found in the earth's crust. Antimony ores are mined and then either changed to antimony metal or combined with oxygen to form antimony oxide. (1) Antimony trioxide is a white powder that is very slightly soluble in water. (1) Antimony metal is a very brittle, moderately hard metal. (1)
Amspec Antimony Trioxide. Antimony Trioxide is a flame retardant additive used in Coatings. Antimony Trioxide; Product Name: I agree to the processing of my personal data in accordance with the personal data protection act in order to send commercial information via e-mail in accordance with the electronic services act to the e-mail address
Antimony trioxide is the one of the major compounds of antimony. Antimony oxide is mainly produced by two ways either by oxidation of antimony or by the process of re-volatilizing of crude antimony trioxide.