Nitric acid, zirconium(4+) salt
Zirconium(IV)nitrate
CAS: 13746-89-9;12372-57-5
Molecular Formula: HNO3Zr
Nitric acid, zirconium(4+) salt - Names and Identifiers
Nitric acid, zirconium(4+) salt - Physico-chemical Properties
| Molecular Formula | HNO3Zr |
| Molar Mass | 154.24 |
| Melting Point | decomposes at 100℃ [HAW93] |
| Water Solubility | very soluble H2O; soluble alcohol [MER06] |
| Appearance | white hygroscopic crystals |
| Physical and Chemical Properties | |
| Use | Important catalysts in organic chemical industry |
Nitric acid, zirconium(4+) salt - Risk and Safety
| UN IDs | 2728 |
| Hazard Class | 5.1 |
| Packing Group | III |
Nitric acid, zirconium(4+) salt - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Introduction | zirconium nitrate is an inorganic compound with the chemical formula Zr(NO3)4 in the presence of pentahydrate and anhydrous. Like other nitrates, zirconium nitrate is an oxidizing agent. |
| preparation method | prepared by the interaction of zirconium hydroxide and nitric acid. take 100 of zirconium oxychloride, add water to dissolve to 24. Be. Another 35kg of soda ash was added with water to dissolve to 24. Be is gradually added, and the well is continuously stirred to make the PH = 26. If it is not accurate, it can Be adjusted with zirconium oxychloride solution or soda ash solution respectively, and then washed, to no sodium chloride as the end point (indicator with silver nitrate). The obtained White zirconium carbonate is dried by pressing, and 10kg of 100 nitric acid is added to each 98% of zirconium carbonate by weight to slowly dissolve, and the pH of the prepared solution is 0.7-1.0, which contains 16% zirconium dioxide, iron, titanium, silicon and heavy metals for 1%. |
| Zirconium Hafnium compound | The most common valence of Zirconium Hafnium is positive tetravalent, which is difficult to be reduced to low price, low-valent compounds are known as chlorides, bromides and iodides, all of which are prepared from high-valent halides. In aqueous solution, zirconium and hafnium are all in 4 valence state, and most of them exist in the form of complex anion or complex cation, and there is almost no free zirconium and hafnium ion. In Zr(SO4)2 · 4H2O solution, when the concentration of zirconium ion is more than 0.7g/L, Zr(OH)2SO4 and ZrO(OH)SO4-two forms exist: (1) Zr(SO4)2 2H2O → Zr(OH)2SO4 H2SO4 (2) Zr(OH)2SO4? ZrO(OH)SO4- H when the concentration of zirconium ion is less than 0.7g/L, it mainly exists in the form of Zr18O10(OH)26(SO4)13, 18Zr(SO4)2 36H2O → Zr18O10(OH)26(SO4)13. when the solution is boiling, aging, diluting or reducing the acidity of the solution, other different kinds of alkaline salts are also formed. The biggest characteristic of Zirconium sulfate solution is that it can exist in many forms of complex ions at the same time, and will not reach equilibrium with each other. zirconium silicate ZrSiO4 is the main raw material for zirconium production. High heat resistance, small thermal expansion coefficient, stable chemical properties, strong corrosion resistance to molten metal and acidic reagents. At high temperature, it can react with sodium hydroxide or soda ash to produce sodium zirconate (Na2ZrO3) and other compounds, and react with calcium oxide or calcium carbonate to produce calcium zirconate (CaZrO3) and other compounds. Thermal decomposition into zirconia and silica at very high temperatures. Zirconium silicate reacts with carbon and chlorine at high temperatures. Zirconium silicate has a density of 5400kg/m3 and a melting point of 2430-2550 °c. It is widely used in refractories, additives and opacifiers in the glass and ceramic industry, abrasives, enamel glazes, mold materials and reinforced glass fiber, etc. There are two forms of zirconium hydroxide: Zirconium hydroxide Zr(OH) 4 and zirconium hydroxide ZrO(OH)2, they are amphoteric compounds, and slightly strong alkaline, and alkaline solution has no obvious effect. Can be dissolved in acidic solution to form the corresponding salts, such as zirconium oxychloride, Zirconium sulfate and zirconium nitrate. |
| Use | used as a reagent for the determination of fluoride is an important catalyst in Organic Chemical Industry |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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