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Potassium heptafluorotantalate

Potassium heptafluorotantalate structure

CAS No:
16924-00-8
Formula:
F7Ta.2K
Chemical Name:
Potassium heptafluorotantalate
Synonyms:
Tantalate(2-),heptafluoro-,potassium (1:2);Tantalate(2-),heptafluoro-,dipotassium;Potassium heptafluorotantalate(V);Potassium fluotantalate(V) (K2TaF7);Potassium fluorotantalate (K2TaF7);Potassium tantalum fluoride (K2TaF7);Potassium fluorotantalate;Potassium heptafluorotantalate;Dipotassium heptafluorotantalate;NSC 154396;Potassium sodium tantalum fluoride (KNaTaF7);10028-20-3;12022-03-6;12206-83-6;1167055-09-5;2122764-67-2;2472905-47-6
Categories:
Inorganic Chemistry > Inorganic Salts

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Description

PelletsLargeCrystals

Potassium heptafluorotantalate Basic Attributes

Molecular Weight：

392.13

Exact Mass：

391.86400

EC Number：

240-986-1

Color/Form：

WHITE, SILKY NEEDLES

Characteristics

PSA：

XLogP3：

2.94140

Appearance：

Powder

Density：

5.24 g/cm³

Melting Point：

775 °C

Water Solubility：

Decomposes in water Slightly soluble in hydrogen fluoride.APPROX 5 G/L @ 0 DEG C; 600 G/L @ 100 DEG C

Toxicity：

Intraperitoneal-rat LD50: 375 mg/kg; oral-mouse LD50: 110 mg/kg

Flammability characteristics：

Non-combustible; heated to decompose toxic gases

Safety Information

Packing level：

III

Hazard category：

6.1

Transport codes：

UN 3288 6.1/PG 3

wgk germany：

hazard class code：

23/25

safety instructions：

RTECS Number：

TT1225000

Marks：

T,Xi

Storage features：

The warehouse is ventilated, low temperature and dry; stored separately from acids and food additives

Hazard note：

Irritant

Precautionary statement(s)：

P261, P264, P270, P271, P280, P301+P310, P302+P352, P304+P340, P305+P351+P338, P311, P312, P321, P330, P332+P313, P337+P313, P362, P403+P233, P405, P501

Hazard Statements：

H301

GHS Classification：

|Danger|H301 (97.78%): Toxic if swallowed [Danger Acute toxicity, oral]|P261, P264, P270, P271, P280, P301+P310, P302+P352, P304+P340, P305+P351+P338, P311, P312, P321, P330, P332+P313, P337+P313, P362, P403+P233, P405, and P501|Aggregated GHS information provided by 45 companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Toxicity

Toxicity class：

moderately toxic

Non-Human Toxicity Values：

LD50 MICE INTRAPERITONEAL 97 MG/KG

Drug Information

Drug Warnings：

Food and Environmental Agents: Effect on Breast-Feeding: Reported Sign or Symptom in Infant or Effect on Lactation: Fluorides: None. /from Table 7/

Absorption：

IN RATS ABSORPTION OF SOLUBLE TANTALUM SALTS IS RELATIVELY LOW. /SOL TANTALUM SALTS/|SOL POTASSIUM TANTALATE (8 MG) MIXED INTO NACL...INTRODUCED BY STOMACH TUBE INTO RATS; (182)TA...ELIMINATED IN FECES IN 3 PHASES: RAPID EXCRETION OF UNABSORBED TANTALATE, SLOW ELIMINATION OF LOOSELY BOUND TANTALUM IN TISSUES, & 3-4 DAY ELIMINATION OF MIN QUANTITIES OF TIGHTLY BOUND TANTALUM. /POTASSIUM TANTALATE/|RETENTION OF TA IN TISSUES IS MORE PROLONGED THAN THE OTHER METALS OF GROUP V, IN FOLLOWING ORDER: BONES GREATER THAN GI TRACT GREATER THAN PELT GREATER THAN MUSCLE GREATER THAN LIVER GREATER THAN KIDNEYS GREATER THAN TESTES GREATER THAN SPLEEN. TANTALUM HELD IN BONES ACCOUNTS FOR 40% OF BODY CONTENT. /TANTALUM SALTS/

Potassium heptafluorotantalate Use and Manufacturing

Methods of Manufacturing

After the tantalum niobium ore is crushed by the acid leaching method, it is slowly added to an acid leaching tank containing hot concentrated hydrofluoric acid and sulfuric acid to decompose the mineral powder. The resulting solution is decanted or filtered, and the acidity is adjusted, and then liquid-liquid extraction is performed Separate, extract phase with methyl isobutyl ketone (MIBK), separate niobium and tantalum fluoride according to different acidity, react tantalum fluoride with potassium hydroxide to prepare potassium fluorotantalate, then cool and crystallize and centrifuge to prepare Obtain potassium fluorotantalate products. 2HF+TaV5+2KOH→K2TaF7+2H2O

Uses

Used for electrochemical synthesis of TaB2

Intermediates

Electrical and electronic products

Production

1,000,000 - 10,000,000 lb|(1977) No Data|(1979) No Data

Manufacturing Info：

Electrical equipment, appliance, and component manufacturing|Tantalate(2-), heptafluoro-, potassium (1:2): ACTIVE

Analytic Methods：

MATRIX: AIR; PROCEDURE: FILTER COLLECTION, ACID DIGESTION, PLASMA EMISSION SPECTROMETRY. /TANTALUM/

Computed Properties

Molecular Weight:392.133
Hydrogen Bond Acceptor Count:8
Exact Mass:391.86423
Monoisotopic Mass:391.86423
Heavy Atom Count:10
Complexity:96.6
Covalently-Bonded Unit Count:3
Compound Is Canonicalized:Yes

Material

Potassium hydroxide

Hydrofluoric acid

Recommended Suppliers of Potassium heptafluorotantalate

Shaanxi Dideu Medichem Co. Ltd Contact Supplier

CN
5 YRS

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POTASSIUM HEPTAFLUOROTANTALATE(V) CAS NO.:16924-00-8 99% Dideu-1-73875 Dideu

CAS No.: 16924-00-8

Grade: Industrial Grade

Content: 99%

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NANTONG REFORM PETRO-CHEMICAL CO.,LTD Contact Supplier

CN
4 YRS

Business licensed Certified factory

Manufactory Supplier of Flavors & Fragrances,Catalyst & Auxiliary,Intermediates,Dyes & Pigments,Inorganic Chemistry,petro chemicals,Surfactant,Food Additives,Water Treatment Chemicals

PotassiuM heptafluorotantalate

CAS No.: 16924-00-8

Grade: Industrial Grade

Content: 99%

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Guide of Potassium heptafluorotantalate

Description
Basic Attributes
Characteristics
Safety Information
Toxicity
Drug Information
Use and Manufacturing
Computed Properties
Material
Recommended Suppliers
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Potassium heptafluorotantalate

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