Hydrolysis rate of aluminum nitride in a sodium hydroxide solution

Atsushi Nosaka; Takehito Hiraki; Noriyuki Okinaka; Tomohiro Akiyama

doi:10.1515/HTMP.2011.054

Hydrolysis rate of aluminum nitride in a sodium hydroxide solution

Atsushi Nosaka, Takehito Hiraki, Noriyuki Okinaka, Tomohiro Akiyama

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

This paper describes a kinetic analysis of the hydrolysis of aluminum nitride (AlN) powder under highly alkaline conditions, in which the temperature dependence of the hydrolysis rate was measured to derive the most suitable kinetic reaction model. The hydrolysis reaction, AlN + NaOH + 3H ₂O → NaAl(OH) ₄(aq) + NH ₃, AlN + OH- + 3H ₂O → Al(OH) ^- ₄ + NH ₃, was experimentally monitored by the aluminum ion concentration measured via Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES) at different constant temperatures of 295, 300, 305, 310, 316, and 327 K. The reaction accelerated exponentially with solution temperature. The time required for the complete dissolution of the AlN samples was highly dependent on temperature; it was 1 ks at 327 K and 120 ks at 295 K. Based on a comparative analysis of various kinetic models, the reaction curves were most successfully simulated by a second-order homogeneous reaction with an activation energy of 69.2 kJ mol ^-1.

Original language	English
Pages (from-to)	339-343
Number of pages	5
Journal	High Temperature Materials and Processes
Volume	30
Issue number	4
DOIs	https://doi.org/10.1515/HTMP.2011.054
Publication status	Published - 2011 Aug
Externally published	Yes

Keywords

Alkaline
Aluminum dross
Aluminum nitride
Hydrolysis
Kinetics
Second-order homogeneous reaction
Sodium hydroxide

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Physical and Theoretical Chemistry

Access to Document

10.1515/HTMP.2011.054

Cite this

@article{b5eec4fb24ec4a368ded771c9d118339,

title = "Hydrolysis rate of aluminum nitride in a sodium hydroxide solution",

abstract = "This paper describes a kinetic analysis of the hydrolysis of aluminum nitride (AlN) powder under highly alkaline conditions, in which the temperature dependence of the hydrolysis rate was measured to derive the most suitable kinetic reaction model. The hydrolysis reaction, AlN + NaOH + 3H 2O → NaAl(OH) 4(aq) + NH 3, AlN + OH- + 3H 2O → Al(OH) - 4 + NH 3, was experimentally monitored by the aluminum ion concentration measured via Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES) at different constant temperatures of 295, 300, 305, 310, 316, and 327 K. The reaction accelerated exponentially with solution temperature. The time required for the complete dissolution of the AlN samples was highly dependent on temperature; it was 1 ks at 327 K and 120 ks at 295 K. Based on a comparative analysis of various kinetic models, the reaction curves were most successfully simulated by a second-order homogeneous reaction with an activation energy of 69.2 kJ mol -1.",

keywords = "Alkaline, Aluminum dross, Aluminum nitride, Hydrolysis, Kinetics, Second-order homogeneous reaction, Sodium hydroxide",

author = "Atsushi Nosaka and Takehito Hiraki and Noriyuki Okinaka and Tomohiro Akiyama",

year = "2011",

month = aug,

doi = "10.1515/HTMP.2011.054",

language = "English",

volume = "30",

pages = "339--343",

journal = "High Temperature Materials and Processes",

issn = "0334-6455",

publisher = "Walter de Gruyter GmbH",

number = "4",

}

TY - JOUR

T1 - Hydrolysis rate of aluminum nitride in a sodium hydroxide solution

AU - Nosaka, Atsushi

AU - Hiraki, Takehito

AU - Okinaka, Noriyuki

AU - Akiyama, Tomohiro

PY - 2011/8

Y1 - 2011/8

N2 - This paper describes a kinetic analysis of the hydrolysis of aluminum nitride (AlN) powder under highly alkaline conditions, in which the temperature dependence of the hydrolysis rate was measured to derive the most suitable kinetic reaction model. The hydrolysis reaction, AlN + NaOH + 3H 2O → NaAl(OH) 4(aq) + NH 3, AlN + OH- + 3H 2O → Al(OH) - 4 + NH 3, was experimentally monitored by the aluminum ion concentration measured via Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES) at different constant temperatures of 295, 300, 305, 310, 316, and 327 K. The reaction accelerated exponentially with solution temperature. The time required for the complete dissolution of the AlN samples was highly dependent on temperature; it was 1 ks at 327 K and 120 ks at 295 K. Based on a comparative analysis of various kinetic models, the reaction curves were most successfully simulated by a second-order homogeneous reaction with an activation energy of 69.2 kJ mol -1.

AB - This paper describes a kinetic analysis of the hydrolysis of aluminum nitride (AlN) powder under highly alkaline conditions, in which the temperature dependence of the hydrolysis rate was measured to derive the most suitable kinetic reaction model. The hydrolysis reaction, AlN + NaOH + 3H 2O → NaAl(OH) 4(aq) + NH 3, AlN + OH- + 3H 2O → Al(OH) - 4 + NH 3, was experimentally monitored by the aluminum ion concentration measured via Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES) at different constant temperatures of 295, 300, 305, 310, 316, and 327 K. The reaction accelerated exponentially with solution temperature. The time required for the complete dissolution of the AlN samples was highly dependent on temperature; it was 1 ks at 327 K and 120 ks at 295 K. Based on a comparative analysis of various kinetic models, the reaction curves were most successfully simulated by a second-order homogeneous reaction with an activation energy of 69.2 kJ mol -1.

KW - Alkaline

KW - Aluminum dross

KW - Aluminum nitride

KW - Hydrolysis

KW - Kinetics

KW - Second-order homogeneous reaction

KW - Sodium hydroxide

UR - http://www.scopus.com/inward/record.url?scp=84860143880&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84860143880&partnerID=8YFLogxK

U2 - 10.1515/HTMP.2011.054

DO - 10.1515/HTMP.2011.054

M3 - Article

AN - SCOPUS:84860143880

SN - 0334-6455

VL - 30

SP - 339

EP - 343

JO - High Temperature Materials and Processes

JF - High Temperature Materials and Processes

IS - 4

ER -

Hydrolysis rate of aluminum nitride in a sodium hydroxide solution

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this