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HomeProduct name listHAFNIUM FLUORIDE

HAFNIUM FLUORIDE

Synonym(s):Hafnium tetrafluoride

  • CAS NO.:13709-52-9
  • Empirical Formula: F4Hf
  • Molecular Weight: 254.48
  • MDL number: MFCD00016127
  • EINECS: 237-258-0
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2023-10-17 17:11:55
HAFNIUM FLUORIDE Structural

What is HAFNIUM FLUORIDE?

Chemical properties

Off-white powder

Physical properties

White monoclinic crystals; refractive index 1.56; density 7.1 g/cm3; sublimes at 970°C.

The Uses of HAFNIUM FLUORIDE

Hafnium(IV) fluoride is used as Vacuum deposition.

Production Methods

Hafnium tetrafluoride is prepared by careful thermal decomposition of ammonium fluorohafniate in an oxygen- free atmosphere or by passing anhydrous hydrogen fluoride over hafnium tetrachloride at 300℃. Direct synthesis from the elements is incomplete because the product merely forms a film on the metal. Ammonium fluorohafniate can be prepared by crystallization from an aqueous hydrofluoric acid solution by adding ammonium fluoride.

Properties of HAFNIUM FLUORIDE

Melting point: 310°C (subl.)
Boiling point: 970°C
Density  7.100
solubility  reacts with H2O
form  Powder
color  White
Water Solubility  React with water.
Sensitive  Moisture Sensitive
Exposure limits ACGIH: TWA 2.5 mg/m3; TWA 0.5 mg/m3
NIOSH: IDLH 250 mg/m3; IDLH 50 mg/m3; TWA 0.5 mg/m3
CAS DataBase Reference 13709-52-9(CAS DataBase Reference)

Safety information for HAFNIUM FLUORIDE

Signal word Danger
Pictogram(s)
ghs
Corrosion
Corrosives
GHS05
ghs
Skull and Crossbones
Acute Toxicity
GHS06
GHS Hazard Statements H315:Skin corrosion/irritation
H318:Serious eye damage/eye irritation
H331:Acute toxicity,inhalation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P280:Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352:IF ON SKIN: wash with plenty of soap and water.

Computed Descriptors for HAFNIUM FLUORIDE

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