Hexafluorozirconic acid

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Structural formula
Hexafluoridozirconic acid.svg
General
Surname Hexafluorozirconic acid
other names

Dihydrogen hexafluorozirconate

Molecular formula H 2 [ZrF 6 ]
Brief description

odorless, colorless liquid

External identifiers / databases
CAS number 12021-95-3
EC number 234-666-0
ECHA InfoCard 100.031.502
PubChem 14299283
ChemSpider 21241642
Wikidata Q62018152
properties
Molar mass 207.22 g mol −1
Physical state

liquid

density

1.51 g cm −3

solubility

Miscible with water

safety instructions
GHS labeling of hazardous substances
05 - Corrosive 06 - Toxic or very toxic

danger

H and P phrases H: 301 + 311 + 331-314
P: 261-280-301 + 310-305 + 351 + 338-310
Toxicological data

> 90 mL / kg ( LD 50ratoral )

As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Hexafluorozirconic acid , H 2 [ZrF 6 ], is an inorganic acid consisting of the transition metal zirconium and the halogen fluorine . Their salts are the hexafluorozirconates.

use

The acid and its salts are used in metal surface technology.

properties

A 45% aqueous solution of hexafluorozirconic acid is an odorless, colorless liquid. It has a density of 1.51 g · cm −3 . The pH value is <1 at 20 ° C.

safety instructions

The acid is toxic if it comes into contact with skin, swallowed or inhaled . It causes severe burns on the skin. It leaves serious damage to the eyes.

The decomposition produces hydrogen fluoride and zirconium oxides . Strong bases , acids and oxidizing agents cause violent reactions with the acid.

Individual evidence

  1. a b Datasheet Hexafluorozirconic acid at SynQuest, accessed March 10, 2019 ( PDF ).
  2. a b c d data sheet dihydrogen hexafluorozirconate from AlfaAesar, accessed on March 10, 2019 ( PDF )(JavaScript required) .
  3. a b c Entry on hexafluorozirconium (IV) acid in the GESTIS substance database of the IFA , accessed on April 6, 2019 (JavaScript required)
  4. Data sheet Hexafluorozirconic acid solution at Santa Cruz Biotechnology, accessed on March 10, 2019 ( PDF ).
  5. T. Nakajima, B. Žemva, A. Tressaud: Advanced Inorganic Fluorides: Synthesis, Characterization and Applications . Elsevier, 2000, ISBN 0-08-052548-2 , pp. 668 .
  6. a b Datasheet Hexafluorozirconic acid solution at Sigma-Aldrich , accessed on March 10, 2019 ( PDF ).