Zinc fluoride
- Product Name
- Zinc fluoride
- CAS No.
- 7783-49-5
- Chemical Name
- Zinc fluoride
- Synonyms
- ZnF2;Zinc(II) fluoride;Zincfluoride,anhydrous;ZINC FLUORIDE CALCINED;zincfluorure;Zinkfluoride;ZINC FLUORIDE;Zinc fluorure;Zincfiuoride;zincdifluoride
- CBNumber
- CB8366098
- Molecular Formula
- F2Zn
- Formula Weight
- 103.39
- MOL File
- 7783-49-5.mol
Zinc fluoride Property
- Melting point:
- 872 °C (lit.)
- Boiling point:
- 1500 °C
- Density
- 4.95 g/mL at 25 °C (lit.)
- vapor pressure
- 1 mm Hg ( 970 °C)
- Flash point:
- 1500°C
- solubility
- Sparingly soluble in hydrochloric acid, nitric acid, and ammonium hydroxide.
- form
- powder
- color
- White to beige to light brown
- Specific Gravity
- 4.95
- Water Solubility
- SLIGHTLY SOLUBLE
- Sensitive
- Hygroscopic
- Crystal Structure
- Rutile type
- crystal system
- square
- Merck
- 14,10136
- Solubility Product Constant (Ksp)
- pKsp: 1.52
- Space group
- P42/mnm
- Lattice constant
a/nm b/nm c/nm α/o β/o γ/o V/nm3 0.47034 0.47034 0.31335 90 90 90 0.0693 - Exposure limits
- ACGIH: TWA 2.5 mg/m3
NIOSH: IDLH 250 mg/m3 - Stability:
- hygroscopic
- CAS DataBase Reference
- 7783-49-5(CAS DataBase Reference)
- NIST Chemistry Reference
- Zinc difluoride(7783-49-5)
- EPA Substance Registry System
- Zinc difluoride (7783-49-5)
Safety
- Hazard Codes
- Xi,T
- Risk Statements
- 37/38-41-36/37/38-23/24/25
- Safety Statements
- 26-39-37/39-45-36/37/39-28
- RIDADR
- 3288
- WGK Germany
- 3
- RTECS
- ZH3500000
- F
- 3-9
- Hazard Note
- Toxic
- TSCA
- Yes
- HazardClass
- 6.1
- PackingGroup
- III
- HS Code
- 28261990
- Hazardous Substances Data
- 7783-49-5(Hazardous Substances Data)
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H411Toxic to aquatic life with long lasting effects
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P273Avoid release to the environment.
P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P302+P352IF ON SKIN: wash with plenty of soap and water.
N-Bromosuccinimide Price
- Product number
- 205567
- Product name
- Zinc fluoride
- Purity
- powder, 99%
- Packaging
- 25g
- Price
- $95.8
- Updated
- 2023/06/20
- Product number
- 205567
- Product name
- Zinc fluoride
- Purity
- powder, 99%
- Packaging
- 100g
- Price
- $271
- Updated
- 2022/05/15
- Product number
- 011541
- Product name
- Zinc fluoride, anhydrous
- Purity
- 99% min
- Packaging
- 250g
- Price
- $320
- Updated
- 2024/03/01
- Product number
- 011541
- Product name
- Zinc fluoride, anhydrous
- Purity
- 99% min
- Packaging
- 50g
- Price
- $89.3
- Updated
- 2023/06/20
- Product number
- 93-3011
- Product name
- Zinc fluoride, anhydrous, 99%
- Packaging
- 25g
- Price
- $48
- Updated
- 2024/03/01
Zinc fluoride Chemical Properties,Usage,Production
Description
Zinc fluoride (ZnF2) is an inorganic chemical compound. Zinc fluoride is used in the fluorination of organic compounds, in the manufacturing of phosphors for fluorescent lights, in preserving wood, in electroplating baths, in galvanizing steel, and in ceramic manufacturing for glazes and enamels. It is also used as a termite repellent, in pharmaceuticals (e.g. the inhibition of dentin demineralization and collagen degradation), as a flux for welding and soldering (e.g. aluminum).
Chemical Properties
White powder. Soluble in hot acids; slightly soluble in water; insoluble in alcohol.
Physical properties
Anhydrous zinc fluoride is a white hygroscopic solid; tetragonal needles; density 4.9 g/cm3; melts at 872°C; vaporizes at 1,500°C; vapor pressure 1 torr at 1,243°C and 5 torr at 1,328°C; practically insoluble in water, 5.2 mg/L; sparingly soluble in HCl, HNO3 and ammonia solution
The hydrated salt, ZnF2?4H2O, is a white crystalline solid; rhombohedral crystals; density 2.30 g/cm3; loses water of crystallization at 100°C; sparinglysoluble in water, about 1.52 g/100mL at 20°C.
Uses
Zinc Difluoride inhibits the erosion of enamel in vitro. It also functions as a fluorinating agent, Lewis acid catalyst and as an additive for catalytic transformations.
Uses
Zinc fluoride is a white crystalline powder, used in the manufacture of phosphors for fluorescent lights. It also is used in electroplating baths, in preservation of wood, in glazes and enamels for ceramics, and in fluorination reactions of organics.
Preparation
Zinc fluoride may be prepared by heating zinc hydroxide or zinc carbonate with hydrogen fluoride:
Zn(OH)2 + 2HF → ZnF2 + 2H2O
ZnCO3 + 2HF → ZnF2 + CO2 + H2O
Also, it can be precipitated by adding a solution of sodium fluoride to that of zinc acetate:
(CH3COO)2Zn + 2NaF → ZnF2 + 2CH3COONa
Hazard
Toxic material.
Flammability and Explosibility
Not classified
Safety Profile
Poison by subcutaneous route. Can react violently with potassium. A fluorination agent. When heated to decomposition it emits toxic fumes of F and ZnO. See also FLUORIDES and ZINC COMPOUNDS.
Purification Methods
A possible impurity is H2O which can be removed by heating at 100o or by heating to 800o in a dry atmosphere. Heating in the presence of NH4F produces larger crystals. It is sparingly soluble in H2O (1.51g/100mL) but more soluble in HCl, HNO3 and NH4OH. It can be stored in glass bottles. [Kwasnik in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 242 1963.]
References
[1] http://www.npi.gov.au/resource/zinc-and-compounds
[2] https://hazmap.nlm.nih.gov/category-details?id=7782&table=copytblagents
[3] Patent EP 0001677 A1: Flux for soft soldering of aluminum, a fluxed solder composition containing said flux and a method of soft soldering aluminum using said flux
Zinc fluoride Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from Zinc fluoride manufacturers
- Product
- Zinc fluoride 7783-49-5
- Price
- US $0.00-0.00/BAG
- Min. Order
- 1BAG
- Purity
- ≥99.9%
- Supply Ability
- 10 Tons
- Release date
- 2024-10-17
- Product
- Zinc fluoride 7783-49-5
- Price
- US $1.00/KG
- Min. Order
- 1KG
- Purity
- 98%-99.9%
- Supply Ability
- 200kg
- Release date
- 2020-01-10