Is ZrCl4 Lewis acid?

Among different Lewis acids, Zr(IV) species such as ZrCl4 and ZrOCl2·8H2O are allocated special attention because of their low toxicity, availability and handling, moisture stability, and low cost in comparison to some of their corresponding compounds.

How do you make zirconium tetrachloride?

Zirconium tetrachloride can be synthesized from the direct reaction between Zr metal and Cl2 gas at high temperatures (>350°C), or from the treatment of ZrO2 with CCl4 or Cl2 gas in the presence of carbon.

What is zirconium tetrachloride used for?

In organic synthesis zirconium tetrachloride is used as a weak Lewis acid for the Friedel-Crafts reaction, the Diels-Alder reaction and intramolecular cyclisation reactions. It is also used to make water-repellent treatment of textiles and other fibrous materials.

What is the formula for zirconium chloride?

ZrCl4
Zirconium(IV) chloride/Formula

What is the atomic weight of zirconium?

91.224 u
Zirconium/Atomic mass

What type of element is zirconium?

Zirconium (Zr), chemical element, metal of Group 4 (IVb) of the periodic table, used as a structural material for nuclear reactors.

What is the mass of chloride?

35.453 g/mol
Chloride/Molar mass

What is zirconium’s weakness?

At normal temperatures in air, zirconium is passive because of the formation of a protective film of oxide or nitride. Even without this film, the metal is resistant to the action of weak acids and acidic salts.

Is Chloride same as chlorine?

Chlorine: The greenish-yellow, highly reactive and diatomic gas that is almost never found free in nature by itself. Chloride is what is created when Chlorine gains an electron and combines with other elements.

How do you calculate percent by mass?

To calculate the mass percent of an element in a compound, we divide the mass of the element in 1 mole of the compound by the compound’s molar mass and multiply the result by 100.

What is the molecular structure of zrcl 4?

Because of its polymeric structure, ZrCl 4 is usually converted to a molecular complex before use. It forms a 1:2 complex with tetrahydrofuran: CAS [21959-01-3], mp 175–177 °C. NaC 5 H 5 reacts with ZrCl 4 (THF) 2 to give zirconocene dichloride, ZrCl 2 (C 5 H 5) 2, a versatile organozirconium complex.

How is zrcl 4 an intermediate in the Kroll process?

ZrCl 4 is an intermediate in the conversion of zirconium minerals to metallic zirconium by the Kroll process. In nature, zirconium minerals invariably exist as oxides (reflected also by the tendency of all zirconium chlorides to hydrolyze).

Which is the hydrated hydroxy chloride cluster called zrcl 4?

Hydrolysis of ZrCl 4 gives the hydrated hydroxy chloride cluster called zirconyl chloride. This reaction is rapid and virtually irreversible, consistent with the high oxophilicity of zirconium (IV). For this reason, manipulations of ZrCl 4 typically require air-free techniques .

Which is the precursor of zirconium ( III ) chloride?

The purified ZrCl 4 can be reduced with Zr metal to produce zirconium (III) chloride . ZrCl 4 is the most common precursor for chemical vapor deposition of zirconium dioxide and zirconium diboride.