Zirconium Nitrate Zr (NO3) 4 CAS 12372-57-5 CAS 13746-89-9

Basic Information
Chemical Formula: Zr(NO3)4. Common hydrates include Zr(NO3)4.3H2O and Zr(NO3)4.5H2O.
Molecular Weight: The molecular weight of the anhydrous compound is 339.26, that of the trihydrate is 393.22, and that of the pentahydrate is 429.32.
CAS Number: 12372-57-5 (zirconium nitrate); 13746-89-9 (zirconium nitrate trihydrate).
Appearance: It is a white tabular crystal or white crystalline powder, which is hygroscopic.
Melting Point: 100 ºC (decomposes).
Density: 1.40 g/cm3.
Solubility: It is soluble in water and ethanol.

Uses
Industrial Field: It is an important zirconium salt, used for manufacturing other zirconium compounds. It plays a significant role in the anti - corrosion and passivation agents for aluminum products, prolonging the product shelf life. It can be used for surface treatment, such as zirconation, silanization, and ceramicization, forming a shiny oxide film on the object surface.
Chemical Analysis: It is used as a reagent for the determination of fluorides and can also be used for the separation of phosphates.
Catalytic Field: It is an important catalyst in organic chemistry, providing strong Lewis acid sites to promote the cleavage of 
C−C bonds in heavy oils, increasing the yield of light oils and reducing coke formation.
Other Aspects: It can be used as a precipitant for proteins, and is used in the tanning of white leather, wrinkled leather, and other leathers. It can also be used in the ceramic industry as a component of colorants and coatings.

Packaging
It is usually packaged in woven bags, with specifications of 25 kg / piece, 50 kg / piece, and 1000 kg / ton bag. It can also be packaged in cardboard drums, with specifications of 25 kg / piece and 50 kg / piece.

Precautions
Health Hazards: It is irritating to the eyes, skin, and mucous membranes. It decomposes at high temperatures to release highly toxic nitrogen oxide gases, which may cause poisoning if inhaled.
Fire and Explosion Hazard: It belongs to inorganic oxidizers and is fire - aiding. When mixed with reducing agents, organic substances, inflammables such as sulfur, phosphorus, or metal powders, it can form explosive mixtures.
Storage Conditions: Store in a cool and ventilated warehouse, with the warehouse temperature not exceeding 30ºC and the relative humidity not exceeding 80%. The packaging must be completely sealed to prevent moisture absorption. It should be stored separately from inflammables and reducing agents, and avoid mixed storage.

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