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Tantalum(V) oxide

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Name

Tantalum(V) oxide

EINECS 215-238-2
CAS No. 1314-61-0 Density 8.2 g/mL at 25 °C(lit.)
PSA 77.51000 LogP -0.54360
Solubility N/A Melting Point 1872 °C
Formula Ta2O5 Boiling Point N/A
Molecular Weight 441.90 Flash Point N/A
Transport Information N/A Appearance white to white-beige powder
Safety 37/39-26 Risk Codes 36/37/38
Molecular Structure Molecular Structure of 1314-61-0 (Tantalum(V) oxide) Hazard Symbols IrritantXi
Synonyms

Tantalum(Ⅴ)oxide;Cerac T 1013;Ditantalum pentaoxide;Tantala;Tantalic acid anhydride;Tantalum oxide (TaO2.5);Tantalum pentaoxide;Tantalumpentoxide;Tantalum pentoxide (Ta2O5);Tantalum(V) oxide;

 

Tantalum(V) oxide Chemical Properties

Molecular Formula: O5Ta2
Molar mass: 441.89 g/mol
Density: 8.2 g/mL at 25 °C(lit.)
Melting point: 1872 °C
Appearance: white to white-beige powder
Solubility: Dissolved in molten potassium hydrogen sulfate and hydrofluoric acid, insoluble in water and other acids.
Structure of Tantalum(V) oxide (CAS NO.1314-61-0):
                         
IUPAC Name: Oxygen(2-) ; Tantalum(5+)
Canonical SMILES: [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5]
InChI: InChI=1S/5O.2Ta/q5*-2;2*+5
InChIKey: BPUBBGLMJRNUCC-UHFFFAOYSA-N
Product Category of (D)-Xylose (CAS NO.58-86-6): Inorganic Chemicals;Inorganics

Tantalum(V) oxide Uses

 Tantalum(V) oxide (CAS NO.1314-61-0) can be used for the pull-Lithium tantalate single crystal and manufacture of special high-refraction low dispersion optical glass. It also can be used in chemicals as a catalyst.

Tantalum(V) oxide Production

1. Potassium tantalum fluoride and sulfuric acid will be heated to 400 ℃, add water to the boiling reactants to make the well-diluted acid solution to have the hydrolysis to produce hydrous oxides precipitate, and then by being separated, washing, drying, at last get the product.
2.Soluble the tantalum sheet metal in mixture of nitric acid and hydrofluoric acid, purified by extraction, precipitated with ammonia hydroxide, and then by washing, drying, burning, grinded, get the product.

Tantalum(V) oxide Toxicity Data With Reference

mouse LD50 oral > 4gm/kg (4000mg/kg) BEHAVIORAL: MUSCLE CONTRACTION OR SPASTICITY)

LUNGS, THORAX, OR RESPIRATION: ACUTE PULMONARY EDEMA

LIVER: "HEPATITIS (HEPATOCELLULAR NECROSIS), DIFFUSE"
Hygiene and Sanitation Vol. 32(10-12), Pg. 343, 1967.
rat LD intraperitoneal > 5gm/kg (5000mg/kg) VASCULAR: REGIONAL OR GENERAL ARTERIOLAR OR VENOUS DILATION

LIVER: OTHER CHANGES

BLOOD: OTHER CHANGES
Industrial Medicine. Vol. 15, Pg. 482, 1946.
rat LD50 oral 8gm/kg (8000mg/kg)   Environmental Quality and Safety, Supplement. Vol. 1, Pg. 1, 1975.

Carcinogenicity of TANTALUM(V) OXIDE(1314-61-0) hasn't been listed as a carcinogen by  NTP, IARC,ACGIH, or CA Prop 65.And its toxicological properties have not been fully investigated.You can see actual entry in RTECS for complete information.

Tantalum(V) oxide Consensus Reports

Reported in EPA TSCA Inventory.

Tantalum(V) oxide Safety Profile

Mildly toxic by ingestion. Incompatible with ClF3, BrF3, Li. See also TANTALUM.
Hazard Codes: Xi
Risk Statements:
36:  Irritating to the eyes
37:  Irritating to the respiratory system
38:  Irritating to the skin
Safety Statements:
26:  In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
37:  Wear suitable gloves
39:  Wear eye/face protection

Tantalum(V) oxide Standards and Recommendations

OSHA PEL: TWA 5 mg/m3
ACGIH TLV: TWA 5 mg/m3

Tantalum(V) oxide Specification

 Tantalum(V) oxide , its cas register number is 1314-61-0. It also can be called Tantalum pentoxide ; Tantalic acid anhydride ; and Tantalum pentoxide . It is hazardous, so the first aid measures and others should be known. Such as: When on the skin: first, should flush skin with plenty of water immediately for at least 15 minutes while removing contaminated clothing. Secondly, get medical aid. Or in the eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Then get medical aid soon. While, it's inhaled: Remove from exposure and move to fresh air immediately. Give artificial respiration while not breathing. When breathing is difficult, give oxygen. And as soon as to get medical aid. Then you have the ingesting of the product: Wash mouth out with water, and get medical aid immediately. Notes to physician: Treat supportively and symptomatically.
In addition,  Tantalum(V) oxide (CAS NO.1314-61-0) is not compatible with strong oxidizing agents, and you must not take it with incompatible materials.

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