Identification | More | [Name]
Zirconyl chloride octahydrate | [CAS]
13520-92-8 | [Synonyms]
ZIRCONIUM(+4)CHLORIDE OXIDE OCTAHYDRATE ZIRCONIUM(+4)OXYCHLORIDE OCTAHYDRATE ZIRCONIUM CHLORIDE BASIC ZIRCONIUM CHLORIDE OXIDE OCTAHYDRATE ZIRCONIUM DICHLORIDE OXIDE ZIRCONIUM DICHLORIDE OXIDE OCTAHYDRATE ZIRCONIUM(IV) OXIDE CHLORIDE ZIRCONIUM(IV) OXIDE CHLORIDE-8-HYDRATE ZIRCONIUM(IV) OXIDE CHLORIDE OCTAHYDRATE ZIRCONIUM(IV) OXYCHLORIDE OCTAHYDRATE ZIRCONIUM OXIDE CHLORIDE, OCTAHYDRATE ZIRCONIUM OXYCHLORIDE ZIRCONIUM OXYCHLORIDE, HYDROUS ZIRCONIUM OXYCHLORIDE OCTAHYDRATE ZIRCONYL CHLORIDE ZIRCONYL CHLORIDE OCTAHYDRATE ZIRCONYL(IV)-CHLORIDE OCTAHYDRATE dichlorooxozirconiumoctahydrate dichlorooxo-zirconiuoctahydrate Zirconiumoxychloride,octahydr | [EINECS(EC#)]
231-717-9 | [Molecular Formula]
Cl2H16O9Zr | [MDL Number]
MFCD00149898 | [Molecular Weight]
322.25 | [MOL File]
13520-92-8.mol |
Chemical Properties | Back Directory | [Appearance]
solid | [Melting point ]
400°C (dec.) | [Boiling point ]
210°C | [density ]
1.91
| [storage temp. ]
Store at +15°C to +25°C. | [solubility ]
H2O: soluble
| [form ]
Crystalline Powder | [color ]
White to light yellow | [Specific Gravity]
1.91 | [Odor]
Odorless | [PH]
1 (50g/l, H2O, 20℃) | [Stability:]
Stable, but may be moisture sensitive. Incompatible with strong oxidizing agents. | [Water Solubility ]
SOLUBLE | [Sensitive ]
Hygroscopic | [Merck ]
14,10184 | [Exposure limits]
ACGIH: TWA 5 mg/m3; STEL 10 mg/m3 NIOSH: IDLH 25 mg/m3; TWA 5 mg/m3; STEL 10 mg/m3 | [CAS DataBase Reference]
13520-92-8(CAS DataBase Reference) |
Questions And Answer | Back Directory | [Synthesis]
Zircon is melted with caustic soda, rinsed, desiliconized, and then reacted with sulfuric acid, and then ammonia water is added to obtain zirconium hydroxide precipitate. Finished zirconium oxychloride. |
Safety Data | Back Directory | [Hazard Codes ]
C | [Risk Statements ]
R34:Causes burns. R22:Harmful if swallowed. | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . S36/37/39:Wear suitable protective clothing, gloves and eye/face protection . S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) . S27:Take off immediately all contaminated clothing . | [RIDADR ]
UN 3264 8/PG 3
| [WGK Germany ]
1
| [RTECS ]
ZH7250000
| [TSCA ]
Yes | [HazardClass ]
8 | [PackingGroup ]
III | [HS Code ]
28274910 | [Toxicity]
LD50 orally in Rabbit: 3500 mg/kg |
Hazard Information | Back Directory | [Chemical Properties]
solid | [Uses]
Zirconium dichloride oxide is utilized as a precursor to prepare other zirconium compounds. It is employed in acid dyes, pigment toners and antiperspirants. It finds application as a rubber additive and a fiber treatment agent. It is also used in paint drying, refractories, ceramics and glaze. | [Production Methods]
Since zircon ZrSiO4, a mineral found in nature, is more difficult to work with, it is better to start from zirconia ZrO2 (baddeleyite), which is calcined, finely ground (the coarser particles are screened off with silk gauze) and converted to the sulfate by evaporation or treatment for several days with an excess of the warm cone. H2SO4. The solid residue, which consists of Zr(SO4)2 and unreacted ZrO2, is taken up in water (the solid is added in small portions to prevent solution heating). The sulfate dissolves slowly, and its solution may be aided by acidifying the water with some hydrochloric acid. The resultant milky suspension, which contains solid undissolved ZrO2 and SiO2 (or ZrSiO4), is allowed to stand for several hours and filtered. The weakly acidic sulfuric acid solution is precipitated with ammonia, and the hydroxide is filtered off. If the precipitate still exhibits a high Si content, it is dissolved in cone and hydrochloric acid and the solution is evaporated to dryness; this procedure is repeated several times. SiO2 and some basic zirconium chloride become the insoluble residue when redissolved in water. If no Si is evident in the hydroxide, the fresh gel is dissolved in cold hydrochloric acid, and the oxychloride is allowed to crystallize by adding cone, hydrochloric acid, or saturating it with HCl. The crystals are filtered and washed with 8N HCl.
| [General Description]
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product is used as a potential green catalyst. Click here for more information. | [Purification Methods]
Recrystallise the chloride several times from water [Ferragina et al. J Chem Soc, Dalton Trans 265 1986]. Recrystallisation from 8M HCl gives the octahydrate as white needles on concentrating. It is also formed by hydrolysing ZrCl4 with water. After one recrystallisation from H2O, 99+% grade zirconyl chloride had Ag, Al, As, Cd, Cu, Hf, Mg, Na, Sc and V at 20, 1.8, 0.6, 0.6, 0.4, 8.4, 0.4, 2.4, 80 and 3 ppm, respectively. (See above.) METAL-ORGANIC COMPOUNDS This section contains metal-organic compounds as well as ammonium and metal salts of organic acids. (For Introduction see p 445.) |
|
|