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12027-05-3

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12027-05-3 Usage

Description

Hafnium tetrahydrate is a chemical compound composed of hafnium ions complexed with four molecules of water. It is characterized by its high water solubility and stability, making it a versatile and significant compound in the field of materials science and technology.

Uses

Used in Microelectronics Industry:
Hafnium tetrahydrate is utilized as a precursor for the production of high-quality hafnium oxide films. These films are essential in the development of advanced capacitors and transistors, contributing to the performance and miniaturization of microelectronic devices.
Used in Hafnium Compounds Preparation:
Hafnium tetrahydrate serves as a starting material for the synthesis of other hafnium compounds, which have various applications in different industries, including aerospace, nuclear, and chemical industries.
Used in Hafnium Metal Purification Processes:
In the production of hafnium metal, hafnium tetrahydrate is employed in purification processes to ensure the high purity and quality of the final product, which is crucial for its performance in various applications.

Check Digit Verification of cas no

The CAS Registry Mumber 12027-05-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,0,2 and 7 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 12027-05:
(7*1)+(6*2)+(5*0)+(4*2)+(3*7)+(2*0)+(1*5)=53
53 % 10 = 3
So 12027-05-3 is a valid CAS Registry Number.

12027-05-3SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name Hafnium hydroxide

1.2 Other means of identification

Product number -
Other names -

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:12027-05-3 SDS

12027-05-3Relevant articles and documents

Infrared spectrum and structure of the Hf(OH)4 molecule

Wang, Xuefeng,Andrews, Lester

, p. 7189 - 7193 (2005)

Laser-ablated Hf atoms react with H2O2 and with H2 + O2 mixtures in solid argon to form the Hf(OH) 2 and Hf(OH)4 molecules, which are identified from the effect of isotopic substitution on the matrix infrared spectra. Electronic structure calculations at the MP2 level varying all bond lengths and angles converge to nearly linear and tetrahedral molecules, respectively, and predict frequencies for these new product molecules and mixed isotopic substituted molecules of lower symmetry that are in excellent agreement with observed values, which confirms the identification of these hafnium hydroxide molecules. This work provides the first evidence for a metal tetrahydroxide molecule and shows that the metal atom reaction with H2O2 in excess argon can be used to form pure metal tetrahydroxide molecules, which are not stable in the solid state.

Thermodynamic Properties of Zirconium and Hafnium Hydroxides in Aqueous Solution

Vasil'ev,Lytkin,Chernyavskaya

, p. 394 - 397 (2008/10/08)

The enthalpies of solution of ZrCl4, ZrBr4, HfCl4, and HfBr4 in water and low-acidity and low-basicity solutions at 25°C are measured with an isothermal-jacket calorimeter. The standard enthalpies of formation of Zr(OH)4 and Hf(OH)4 in solution and the thermodynamic characteristics of formation of zirconium and hafnium tetrahydroxo complexes in aqueous solution are calculated.

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