Chinese english Japanese Germany Korea
ChemicalBook > Product Catalog >Inorganic chemistry >Oxides and peroxides >Metal oxide >Tungsten trioxide

Tungsten trioxide

Tungsten trioxide Structure
CAS No.
1314-35-8
Chemical Name:
Tungsten trioxide
Synonyms
WO3;TUNGSTEN OXIDE;Tung;Tungsten blue;CI 77901;Mo 100ppm;Wolframite;tungstenblue;Wolframtrioxid;TUNGSTIC OXIDE
CBNumber:
CB1718034
Molecular Formula:
O3W
Molecular Weight:
231.84
MOL File:
1314-35-8.mol
MSDS File:
SDS
Modify Date:
2024/7/12 17:58:41
Request For Quotation

Tungsten trioxide Properties

Melting point 1470-1475 °C
Boiling point 1837°C (estimate)
Density 7.16 g/mL at 25 °C(lit.)
storage temp. Room Temperature
solubility insoluble in H2O, organic solvents; slightly soluble in acid solutions; soluble in alkaline solutions
form powder
Specific Gravity 7.16
color Yellow to greenish-yellow
Water Solubility insoluble
Merck 14,9817
Exposure limits ACGIH: TWA 3 mg/m3
NIOSH: TWA 5 mg/m3; STEL 10 mg/m3
InChIKey ZNOKGRXACCSDPY-UHFFFAOYSA-N
CAS DataBase Reference 1314-35-8(CAS DataBase Reference)
NIST Chemistry Reference Tungsten trioxide(1314-35-8)
EPA Substance Registry System Tungsten trioxide (1314-35-8)

SAFETY

Risk and Safety Statements

Symbol(GHS) 
GHS07
Signal word  Warning
Hazard statements  H302
Precautionary statements  P264-P270-P301+P312a-P330-P501a
Hazard Codes  Xn
Risk Statements  22-36/37/38
Safety Statements  26-36-37/39
WGK Germany  -
RTECS  YO7760000
F  21
TSCA  Yes
HS Code  28259012
Toxicity rat,LD50,oral,1059mg/kg (1059mg/kg),BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)BEHAVIORAL: EXCITEMENTBEHAVIORAL: MUSCLE WEAKNESS,Hygiene and Sanitation Vol. 31(7-9), Pg. 197, 1966.
NFPA 704
0
1 0

Tungsten trioxide price More Price(38)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich(India) 95410 Tungsten(VI) oxide powder, puriss., 99.9% 1314-35-8 100G ₹10792.53 2022-06-14 Buy
Sigma-Aldrich(India) 95410 Tungsten(VI) oxide powder, puriss., 99.9% 1314-35-8 500G ₹28025.93 2022-06-14 Buy
Sigma-Aldrich(India) 774537 Tungsten(VI) oxide nanowires, diam. × L ~50?nm × 10?μm 1314-35-8 500MG ₹19766.45 2022-06-14 Buy
Sigma-Aldrich(India) 550086 Tungsten(VI) oxide nanopowder, <100?nm particle size (TEM) 1314-35-8 5G ₹6062 2022-06-14 Buy
Sigma-Aldrich(India) 232785 Tungsten(VI) oxide powder, ≤25?μm, ≥99% trace metals basis 1314-35-8 100G ₹5813.03 2022-06-14 Buy
Product number Packaging Price Buy
95410 100G ₹10792.53 Buy
95410 500G ₹28025.93 Buy
774537 500MG ₹19766.45 Buy
550086 5G ₹6062 Buy
232785 100G ₹5813.03 Buy

Tungsten trioxide Chemical Properties,Uses,Production

Chemical Properties

Canary-yellow, heavy powder, darkorange when heated and regains original color on cooling. Insoluble in water, soluble in caustic alkalies, soluble with difficulty in acids. Noncombustible.

Physical properties

Heavy yellow powder; turns dark orange on heating; reverts back to yellow on cooling; density 7.2 g/cm3; melts at 1,472°C; insoluble in water; slightly soluble in acids; soluble in caustic alkalies.

Uses

manufacture of tungstates which are used for x-ray screens and for fireproofing fabrics.

Preparation

Tungsten trioxide is obtained as an intermediate in recovery of tungsten from its minerals (See Tungsten). In commerical processes tungstic acid, H2WO4, obtained from the mineral scheelite, may either be decomposed at high temperatures to form trioxide or dissolved in ammonium hydroxide solution and evaporated to yield ammonium paratungstate (APT) crystals, 5 (NH4)2O?12WO3?11H2O. The APT crystals are then washed, dried, and calcined at elevated temperatures to form tungsten trioxide
Tungsten trioxide, in general, can be made by heating metallic tungsten, its carbides, its lower oxides, or tungstic acid in air.

General Description

Tungsten(VI) oxide (WO3) is a semiconducting material with excellent electrochromic properties. It is a cost efficient material with a high optical modulation. It can be synthesized by a variety of methods which include chemical vapor deposition, electrodeposition, and other sol-gel based coating processes.

Hazard

Toxic material.

Safety Profile

Moderately toxic by ingestion. Can react violently with ClF3, Li, Cl2. See also TUNGSTEN COMPOUNDS.

Structure and conformation

The crystal structure of tungsten trioxide is temperature dependent. It is tetragonal at temperatures above 740℃, orthorhombic from 330 to 740 °C, monoclinic from 17 to 330 °C, triclinic from -50 to 17 °C, and monoclinic again at temperatures below -50 °C.The most common structure of WO3 is monoclinic with space group P21/n.

Tungsten trioxide Preparation Products And Raw materials

Raw materials

WO CI Sodium tungstate Tungsten Concentrate Sodium hydroxide
Ammonia
chevron_left

1of2

chevron_right

Preparation Products

Tungsten carbide Calcium tungstate Phosphotungstic acid 44-hydrate Tungsten

Tungsten trioxide Suppliers

Global( 347)Suppliers
Supplier Tel Country ProdList Advantage Inquiry
GLR Innovations +91 9891111994 New Delhi, India 4542 58 Inquiry
Evans Fine Chem +91-9821340302 +91-9821340302 Maharashtra, India 286 58 Inquiry
Sajan Overseas Pvt Ltd +91-9825074205 +91-9825074205 Gujarat, India 38 58 Inquiry
Dhara Industries +91-9322395199 +91-9322395199 Mumbai, India 190 58 Inquiry
CHEMSWORTH +91-261-2397244 New Delhi, India 6707 30 Inquiry
Otto Chemie Pvt. Ltd. +91 9820041841 Mumbai, India 5873 58 Inquiry
Sisco Research Laboratories Pvt. Ltd. +91-22-4268 5800 Mumbai, India 4317 58 Inquiry
Alfa Aesar 1 800 209 7001 Maharashtra, India 6913 58 Inquiry
Triveni chemicals 08048762458 New Delhi, India 6093 58 Inquiry
Aritech Chemazone Private Limited +91-9034345475 Punjab, India 684 58 Inquiry
Supplier Advantage
GLR Innovations 58
Evans Fine Chem 58
Sajan Overseas Pvt Ltd 58
Dhara Industries 58
CHEMSWORTH 30
Otto Chemie Pvt. Ltd. 58
Sisco Research Laboratories Pvt. Ltd. 58
Alfa Aesar 58
Triveni chemicals 58
Aritech Chemazone Private Limited 58

Related articles

1314-35-8(Tungsten trioxide)Related Search:

Chromium(VI) oxide Sulfur trioxide Aluminum oxide Tungsten Tungsten carbide
Diantimony trioxide Molybdenum trioxide Chromium(III) oxide TIN(II) OXIDE Neodymium oxide
Zirconium dioxide Zinc oxide Cerium dioxide Samarium oxide Tricobalt tetraoxide
Cupric oxide Lanthanum oxide Cyclohexene oxide
chevron_left

1of4

chevron_right
CI 77901 TUNGSTEN TRIOXIDE 99.999% TUNGSTEN TRIOXIDE, 99.5% Tungsten(VI)oxide(99.9994%-W)PURATREM Tungsten(VI)oxide(min.99.8%-W) Tungsten(VI)oxide,sinteredlumps(99.99%-W)PURATREM tungsten(vi) oxide, puratronic TUNGSTENOXIDE,POWDER Wolframtrioxid TUNGSTEN(VI) OXIDE: 99.9994% PURATREM TUNGSTEN(VI) OXIDE: 99.7% TUNGSTEN(VI) OXIDE: 99.8% TUNGSTEN OXIDE YELLOW (CARBIDE GRADE MILLED) TUNGSTEN(VI) OXIDE, SINTERED LUMPS: 99.99%, PURATREM TUNGSTIC ANHYDRIDE TUNGSTIC OXIDE TUNGSTEN(VI) OXIDE TUNGSTEN TRIOXIDE TUNGSTEN OXIDE VIOLET-BLUE TUNGSTEN OXIDE YELLOW TUNGSTEN OXIDE YELLOW-GREEN TUNGSTEN(+6)OXIDE TUNGSTEN(6) OXIDE Tungsten oxide (WO3) TUNGSTEN(VI) OXIDE, NANOPOWDER, <100NM TUNGSTEN(VI) OXIDE EXTRA PURE TUNGSTEN(VI) OXIDE, 99.995% TUNGSTEN(VI) OXIDE, POWDER, CA. 20 MICRO N, 99+% TUNGSTEN (VI) OXIDE, 99+% TUNGSTEN (VI) OXIDE, 12-18UM 99.98% TUNGSTEN (VI) OXIDE, 99.999% TUNGSTEN (VI) OXIDE, SINTERED LUMPS (99.99%-W) SPECTRO TUNGSTEN (IV) OXIDE (TUNGSTEN TRIOXIDE) Wolfram(VI) trioxide Tungsten(VI) oxide, 99.8% (metals basis) Tungsten(VI) oxide, Puratronic(R), 99.998% (metals basis excluding Mo), Mo 100ppm Tungsten trioxide: (Tungsten(VI) oxide) Tungsten(VI) oxide, Puratronic, 99.998% (metals basis excluding Mo), Mo 100ppm Tungsten (VI) oxide, milled, 99.8% (metals basis) Tungsten(VI)Trioxide Tungsten(VI) oxide (metals basis) Tungsten(VI) oxide,Tungstic anhydride Tungsten(VI)oxide/ 99.9% Tungsten(VI) oxide (99.995%-W) PURATREM TUNGSTIC OXIDE, 99.5% WO3 Tungsten trioxid Tungsten trioxide SynonyMs Tungsten(VI) oxide Tungsten trioxide, 60nM Tungsten trioxide nanowires Tungsten(VI)Oxide Nanopowder <100NM (BET) Tungsten(VI) oxide nanowires, diam. x L ~50 nm x 10 mum Tungsten(VI) oxide powder, <=20 mum, >=99% trace metals basis Tungsten(VI) oxide powder, 99.995% trace metals basis Tungsten(VI) oxide, 99.995% trace metals basis excluding Mo Tungsten(VI) oxide, 99.5% trace metals basis Tungsten(VI) oxide nanopowder, <100 nM particle size (TEM) Tungsten(VI) oxide powder, puriss., 99.9% Mo 100ppm