Potassium hexafluorozirconate Chemical Properties

Melting point:

840°C

Density 

3,5 g/cm³

form 

powder

color 

colorless monoclinic crystals, crystalline

Water Solubility 

Slightly soluble in cold water, soluble in hot water

Merck 

14,7639

Solubility Product Constant (Ksp)

pKsp: 3.3

Exposure limits

ACGIH: TWA 5 mg/m3; TWA 2.5 mg/m3; STEL 10 mg/m3
NIOSH: IDLH 25 mg/m3; IDLH 250 mg/m3; TWA 5 mg/m3; STEL 10 mg/m3

CAS DataBase Reference

16923-95-8(CAS DataBase Reference)

EPA Substance Registry System

Zirconium potassium fluoride (16923-95-8)

Safety Information

Hazard Codes 

T,Xi

Risk Statements 

25-36/37/38

Safety Statements 

26-28-36/37/39-45

RIDADR 

UN 3288 6.1/PG 3

WGK Germany 

2

RTECS 

ZH7028400

Hazard Note 

Irritant

TSCA 

Yes

HazardClass 

6.1

PackingGroup 

III

HS Code 

2826908090

Hazardous Substances Data

16923-95-8(Hazardous Substances Data)

MSDS

• Language:English Provider:Dipotassium hexafluorozirconate
• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

Potassium hexafluorozirconate Usage And Synthesis

Chemical Properties

White crystals. Soluble in water (hot).

Uses

Dipotassium hexafluorozirconate is used in the production metallic Zirconium.

Uses

For manufacture of metallic zirconium.

General Description

A white crystalline solid. The primary hazard Potassium hexafluorozirconate the threat posed to the environment. Immediate steps should be taken to limit its spread to the environment. Potassium hexafluorozirconate is slightly soluble in water. Potassium hexafluorozirconate is used in metal processing, as a catalyst in chemical manufacture, and for other uses.

Air & Water Reactions

Soluble in hot water [Hawley].

Reactivity Profile

Acidic inorganic salts, such as Potassium hexafluorozirconate, are generally soluble in water. The resulting solutions contain moderate concentrations of hydrogen ions and have pH's of less than 7.0. They react as acids to neutralize bases. These neutralizations generate heat, but less or far less than is generated by neutralization of inorganic acids, inorganic oxoacids, and carboxylic acid. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible. Many of these compounds catalyze organic reactions.

Health Hazard

INHALATION: Irritation, nose bleed possible. SKIN: May cause granulomatous reactions. INGESTION: Burning pain in the mouth and throat, vomiting, watery or bloody diarrhea, retching anuria, liver damage and collapse.

Flammability and Explosibility

Non flammable

Safety Profile

Poison by ingestion. When heated to decomposition it emits toxic fumes of F and K2O. See also FLUORIDES and ZIRCONIUM COMPOUNDS.

Purification Methods

Recrystallise it from hot water (solubility is 0.78% at 2o and 25% at 100o).

Potassium hexafluorozirconate(16923-95-8)Related Product Information

• Potassium chloride
• Potassium persulfate
• Potassium Citrate
• Potassium iodate
• POTASSIUM PHOSPHITE
• Potassium sorbate
• Potassium iodide
• Potassium hexafluoraluminate
• Potassium lactate
• Potassium bromate
• Ammonium hexafluorozirconate
• Potassium Acetate
• Hexafluorozirconic acid
• Zirconium
• Potassium nitrate
• Potassium
• Potassium chlorate
• Zirconium fluoride