ChemicalBook > CAS DataBase List > Tungstic acid
Tungstic acid
Physical Properties Uses Preparation- Product Name
- Tungstic acid
- CAS No.
- 7783-03-1
- Chemical Name
- Tungstic acid
- Synonyms
- O2W(OH)2;ungsticaci;Tunstic acid;TUNGSTIC ACID;Wolframic acid;TungsticAcidGr;TUNGSTIC(VI) ACID;Tungstic acid 99%;Orthotungstic acid;TUNGSTIC ACID 99+%
- CBNumber
- CB2155821
- Molecular Formula
- HO4W-
- Formula Weight
- 248.84
- MOL File
- 7783-03-1.mol
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Tungstic acid Property
- Melting point:
- 100°C (dec.)
- Boiling point:
- 1473°C
- Density
- 5.5 g/mL at 25 °C (lit.)
- refractive index
- 2.24
- Flash point:
- 1473°C
- storage temp.
- Sealed in dry,Room Temperature
- solubility
- insoluble in H2O, acid solutions; soluble in alkaline solutions
- form
- powder
- color
- Yellow to yellow-greenish
- Specific Gravity
- 5.5
- Water Solubility
- insoluble
- Merck
- 14,9818
- Exposure limits
- ACGIH: TWA 3 mg/m3
NIOSH: TWA 5 mg/m3; STEL 10 mg/m3 - Stability:
- Stable. Incompatible with strong oxidizing agents.
- CAS DataBase Reference
- 7783-03-1(CAS DataBase Reference)
- NIST Chemistry Reference
- Tungstic acid(7783-03-1)
- EPA Substance Registry System
- Tungstate (WO42-), dihydrogen, (T-4)- (7783-03-1)
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Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
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N-Bromosuccinimide Price
Sigma-Aldrich
- Product number
- 223328
- Product name
- Tungstic acid
- Purity
- 99%
- Packaging
- 100g
- Price
- $93.7
- Updated
- 2024/03/01
Sigma-Aldrich
- Product number
- 223328
- Product name
- Tungstic acid
- Purity
- 99%
- Packaging
- 500g
- Price
- $341
- Updated
- 2024/03/01
Alfa Aesar
- Product number
- 082118
- Product name
- Tungstic(VI) acid
- Packaging
- 25g
- Price
- $26.65
- Updated
- 2024/03/01
Alfa Aesar
- Product number
- 082118
- Product name
- Tungstic(VI) acid
- Packaging
- 100g
- Price
- $99.3
- Updated
- 2024/03/01
Strem Chemicals
- Product number
- 93-7410
- Product name
- Tungstic acid, 99%
- Packaging
- 50g
- Price
- $44
- Updated
- 2024/03/01
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Tungstic acid Chemical Properties,Usage,Production
Physical Properties
Yellow amorphous powder; density 5.59 g/cm3; decomposes at 100°C; insoluble in water and most acids; soluble in hydrofluoric acid, caustic alkalies and ammonia solution. Freshly prepared tungstic acid containing a molecule of water of crystallization is moderately soluble in water.
Uses
Tungstic acid is used in preparing tungsten metal and many tungsten compounds. Also, it is a mordant for textiles.
Preparation
Tungstic acid is obtained as an intermediate in the recovery of tungsten from its minerals, scheelite and wolframite (See Tungsten). Also, the tungstic acid may be prepared by heating sodium tungstate with sulfuric acid or hydrochloric acid:
Na2WO4 + 2HCl → H2WO4 + 2NaCl
Na2WO4 + H2SO4 → H2WO4 + Na2SO4
Chemical Properties
light yellow powder
Physical properties
Yellow amorphous powder; density 5.59 g/cm3; decomposes at 100°C; insoluble in water and most acids; soluble in hydrofluoric acid, caustic alkalies and ammonia solution. Freshly prepared tungstic acid containing a molecule of water of crystallization is moderately soluble in water.
Uses
Tungstic Acid is used as a starting material in the synthesis of polynanocomposite material and polycrystalline ceramics.
Definition
ChEBI: Tungstic acid is a tungsten coordination entity. It is a conjugate acid of a hydrogentungstate.
General Description
Tungstic acid may be prepared by either digesting tungstate of lime or by treating tungsten with hydrochloric acid. 1
Flammability and Explosibility
Not classified
Tungstic acid Preparation Products And Raw materials
Raw materials
WO
Ammonium paratungstate
Calcium chloride solution 36-40%, (1box=27kgs)
TUNGSTEN ORE
Hydrochloric acid
Nitric acid
Sodium hydroxide
Sodium tungstate dihydrate
Preparation Products
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View Lastest Price from Tungstic acid manufacturers
HebeiShuoshengImportandExportco.,Ltd
- Product
- Tungstic acid 7783-03-1
- Price
- US $6.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 2000KG/Month
- Release date
- 2024-08-12
Hebei Longbang Technology Co., Ltd
- Product
- Tungstic acid 7783-03-1
- Price
- US $6.00/kg
- Min. Order
- 1kg
- Purity
- More than 99%
- Supply Ability
- 2000KG/Month
- Release date
- 2024-05-10
Hebei Jingbo New Material Technology Co., Ltd
- Product
- Tungstic acid 7783-03-1
- Price
- US $0.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 1000000
- Release date
- 2023-12-29
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