939382

Zinc Fluoride tetrahydrate

≥99.9% trace metals basis

• Synonym(s): Zinc difluoride tetrahydrate, Zinc(II) fluoride tetrahydrate
• Empirical Formula (Hill Notation): ZnF₂·4H₂O
• CAS Number: 13986-18-0
• Molecular Weight: 175.45
• MDL number: MFCD00149892
• UNSPSC Code: 12352200
• form: powder or crystals
• solubility: water: slightly soluble

Properties

• type: (High purity Salts)
• Quality Level: 100
• Assay: ≥99.9% trace metals basis; 99-102% (Complexometric Titration)
• form: powder or crystals
• impurities: ≤1000 ppm (trace metals analysis)
• color: white to off-white
• mp: 872 °C
• solubility: water: slightly soluble
• density: 2.30 (g/cc)
• anion traces: chloride (Cl^-): ≤20 ppm
• cation traces: Al: <20 ppm; Cu: <20 ppm; Fe: <20 ppm; K: <20 ppm; Mg: <20 ppm; Na: <20 ppm; Pb: <20 ppm
• application(s): (Optical Fibre)
• SMILES string: [Zn](F)F.O.O.O.O
• InChI: 1S/2FH.4H2O.Zn/h2*1H;4*1H2;/q;;;;;;+2/p-2
• InChI key: OEUUYPRXVRBIFO-UHFFFAOYSA-L

Description

General description

Zinc Fluoride tetrahydrate is a white crystalline solid with slight solubility in water. It serves as a source of Zinc for oxygen-sensitive applications and is utilized as a mild fluorinating agent in halogenated hydrocarbons. Additionally, it is employed in the synthesis of fluoride glass optical fibers and optical transmitting glass.

Application

Zinc Fluoride tetrahydrate plays a key role in creating Zinc-based Triazolate Frameworks, Zinc metal Batteries, as well as in the production of glass optical fibers and optical transmitting glass. To illustrate, the synthesis of Zinc-based metal-triazolate frameworks involves mixing HdaTZ and HF in water, filtering the mixture into a microwave tube, adding ZnF₂.4H₂O, stirring for approximately an hour, heating the mixture in a microwave at 160°C for 1 minute, repeating this process for 30 minutes, and then allowing it to cool to room temperature, resulting in a reddish-white ZnF(daTZ). This substance is utilized to capture CO₂ from flue gas. Similarly, to improve the cycling stability and address corrosion issues in aqueous Zn-based batteries, Zinc fluoride is used as a coatings applied to the surface of zinc metal anodes to make dendrite free anode. Researchers employed this simple and rapid anodic growth strategy to produce a 3D interconnected ZnF₂ matrix on the surface of Zn metal to enhance wettability for aqueous electrolytes, elevated corrosion resistance, reduced hydrogen evolution reaction, and improved Zn²⁺ desolvation capability.

Safety Information

• Pictograms: GHS07,GHS09
• Signal Word: Warning
• Hazard Statements: H302 + H332,H315,H410
• Precautionary Statements: P261 - P264 - P273 - P301 + P312 - P302 + P352 - P304 + P340 + P312
• Hazard Classifications: Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Skin Irrit. 2
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable