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12030-85-2

12030-85-2 Structure

12030-85-2 Structure
IdentificationMore
[Name]

POTASSIUM NIOBATE
[CAS]

12030-85-2
[Synonyms]

POTASSIUM COLUMBATE
POTASSIUM METACOLUMBATE
POTASSIUM NIOBATE
POTASSIUM NIOBIUM OXIDE
niobate(nbo31-),potassium
niobate,octapotasium
niobiumpotassiumoxide(knbo3)
potassiumniobiumtrioxide
Potassium niobate (99.999%-Nb) PURATREM
Potassiumniobatewhitepowder
potassium niobium oxide, puratronic
niobate, potassium
Potassium niobium oxide, Puratronic(R), 99.999% (metals basis)
Potassium columbate: (Potassium niobate)
Potassium niobium oxide, Puratronic, 99.999% (metals basis)
potassium niobate(V)
[EINECS(EC#)]

234-744-4
[Molecular Formula]

KNbO3
[MDL Number]

MFCD00049651
[Molecular Weight]

180
[MOL File]

12030-85-2.mol
Questions And AnswerBack Directory
[Description]

Potassium niobate (KNbO3) is an inorganic compound with the formula KNbO3. A colorless solid, it is classified as a perovskite ferroelectric material. It exhibits nonlinear optical properties, and is a component of some lasers. Nanowires of potassium niobate have been used to produce tunable coherent light.
[Chemical Properties]

On cooling from high temperature, KNbO3 undergoes a series of structural phase transitions. At 435 °C, the crystal symmetry changes from cubic centrosymmetric (Pm3m) to tetragonal non-centrosymmetric (P4mm). On further cooling, at 225 °C the crystal symmetry changes from tetragonal (P4mm) to orthorhombic (Amm2) and at −50 °C from orthorhombic (Amm2) to rhombohedral (R3m).
Chemical PropertiesBack Directory
[Melting point ]

1100 °C
[density ]

4.640
[solubility ]

insoluble in H2O
[form ]

Powder
[color ]

white
[Water Solubility ]

Slightly soluble in water.
[CAS DataBase Reference]

12030-85-2(CAS DataBase Reference)
[EPA Substance Registry System]

Niobium potassium oxide (NbKO3) (12030-85-2)
Hazard InformationBack Directory
[Chemical Properties]

-100 mesh with 99.9% purity; white powder(s) [STR93] [CER91]
[Uses]

Potassium niobate can be used to prepare bismuth sodium titanate(BNT)-KN ceramics (BNT–KN ceramics) by the mixed oxide method. The addition of KN to the BNT system increases the dielectric and piezoelectric properties of the BNT-KN ceramics. These properties of the ceramic system are suitable for the development of lead-free capacitors. Cu dopped KNbO3 single crystals also found application in semiconductor laser technology because Cu doping resulted in electronic states with near-infrared absorption bands.
[General Description]

Potassium niobate (KNbO3, KN) is a perovskite-type well-known ferroelectric material with a wide range of applications in electromechanical, nonlinear optical, frequency doubler, and holographic storage system applications. Single crystal of a KNbO3 is known to have high piezoelectric activity because of its high electromechanical coupling factors. Therefore KN materials have received much interest in the development of lead-free piezoelectric materials.
[Flammability and Explosibility]

Notclassified
Safety DataBack Directory
[Safety Statements ]

S22:Do not breathe dust .
S24/25:Avoid contact with skin and eyes .
[WGK Germany ]

2
[RTECS ]

TT3500000
[TSCA ]

Yes
Well-known Reagent Company Product InformationBack Directory
[Alfa Aesar]

Potassium niobium oxide, Puratronic, 99.999% (metals basis)(12030-85-2)
[Sigma Aldrich]

12030-85-2(sigmaaldrich)
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