Basic information Description Chemical Properties Safety Supplier Related

POTASSIUM NIOBATE

Basic information Description Chemical Properties Safety Supplier Related

POTASSIUM NIOBATE Basic information

Product Name:
POTASSIUM NIOBATE
Synonyms:
  • 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 niobate(V)
CAS:
12030-85-2
MF:
KNbO3
MW:
180
EINECS:
234-744-4
Product Categories:
  • inorganic compound
  • Ceramics
  • Metal and Ceramic Science
  • Niobates
Mol File:
12030-85-2.mol
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POTASSIUM NIOBATE Chemical Properties

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)
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Safety Information

Safety Statements 
22-24/25
WGK Germany 
2
RTECS 
TT3500000
TSCA 
Yes

MSDS

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POTASSIUM NIOBATE Usage And Synthesis

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 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

Not classified

POTASSIUM NIOBATESupplier

J & K SCIENTIFIC LTD.
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