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Antimony oxide is an inorganic compound with the chemical formula Sb₂O₃. It is a white, odorless and crystalline (sand-like) powder. ATO is an amphoteric oxide, which can dissolve both in alkaline and acidic solutions.

Overview
Application
Spesification

Overview

Antimony oxide may refer to any of the following:

Diantimony tetroxide, Sb2O4
Antimony trioxide, Sb2O3
Antimony pentoxide, Sb2O5
Antimony hexitatridecoxide, Sb6O13
Stibiconite, Sb3O6(OH)

Antimony tetroxide is an inorganic compound with the formula Sb2O4. This material, which exists as the mineral cervantite,[3] is white but reversibly yellows upon heating. The material, with empirical formula SbO2, is called antimony tetroxide to signify the presence of two kinds of Sb centers.

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 mixed arsenic-antimony oxide occurs in nature as the very rare mineral stibioclaudetite.

Antimony pentoxide (molecular formula: Sb2O5) is a chemical compound of antimony and oxygen. It contains antimony in the +5 oxidation state.

Stibiconite is an antimony oxide mineral with formula: Sb3O6(OH). Its name originates from Greek stíbi (στίβι), 'antimony' and kónis (κόνις), 'powder', alluding to its composition and habit. It is a member of the pyrochlore super group.

Manufacturing Process

Antimony oxide nanoparticles can be synthesized using polyvinyl alcohol in water solution via reaction between antimony trichloride and sodium hydroxide. The nanoparticle created is 10 to 80 nm in size. High-resolution electron microscopy (HREM) and transmission electron microscopy can be used to characterize the microstructure of these nanoparticles.

Application

The key applications of antimony oxide nanoparticles are listed below:

In high conductivity applications
As an antistatic additive and a flame retardant in coatings, nanowires, plastics, fiber and textiles
In some alloy and catalyst applications
In electrochromics or electro-optics and magnetic machines and micro-equipment due to their high conductivity

Spesification

ANTIMONY OXIDE HIGH TINT (HT)
		Specification	Typical
Antimony Oxide	Minimum	99.5%	99.5%
Antimony (Sb)	Minimum	83.3%	83.3%
Arsenic (As)	Maximum	0.2%	0.075%
Lead (Pb)	Maximum	0.1%	0.050%
Iron (Fe)	Maximum	0.002%	< 0.0004%
Selenium	Maximum	50 ppm	< 50ppm
Specific Gravity	Maximum	5.2-5.6	5.2-5.6
Average Particle Size FSSS		1.1-1.8	1.2-1.6
(microns)		1.1-1.8	1.2-1.6
Color		Excellent White
Residue on 325 mesh (% max/min)		0.5%	< 0.1%

Antimony Oxide Safety Data Sheet

product identification
CAS No.	1309-64-4
FORMULA	Sb₂O₃
Mol wt.	291.52
EINECS	2151750
Synonyms	Antimonious oxide, antimony(III) oxide

PHYSICAL AND CHEMICAL PROPERTIES
BOILING POINT	1425°C
MELTING POINT	656°C
DENSITY	5.2.-5.7 g/cm3
VAPOR PRESSURE	0.406 mmHg at 550°C
VAPOR DENSITY (Air = 1)	Not available.
SOLUBILITY IN H₂O	.001g/100ml @25°C
APPEARANCE AND ODOR	White, crystalline powder; odorless.