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Barium borate information


Barium borate
Barium Borate
Names
Other names
barium diborate, barium boron oxide, barium metaborate
Identifiers
CAS Number
  • 13701-59-2 checkY
  • 19004-06-9 (monohydrate) ☒N
  • 38720-52-4 (dihydrate) ☒N
3D model (JSmol)
  • Interactive image
ChemSpider
  • 3642855 checkY
ECHA InfoCard 100.033.824 Edit this at Wikidata
EC Number
  • 237-222-4
PubChem CID
  • 6101043
  • 23165673 (monohydrate)
UNII
  • 5SE5SRJ05N
CompTox Dashboard (EPA)
  • DTXSID1034347 Edit this at Wikidata
InChI
  • InChI=1S/2BO2.Ba/c2*2-1-3;/q2*-1;+2 checkY
    Key: QBLDFAIABQKINO-UHFFFAOYSA-N checkY
  • InChI=1/2BO2.Ba/c2*2-1-3;/q2*-1;+2
    Key: QBLDFAIABQKINO-UHFFFAOYAX
SMILES
  • [Ba+2].[O-]B=O.[O-]B=O
Properties
Chemical formula
BaB2O4 or Ba(BO2)2
Molar mass 222.95
Appearance white powder or colorless crystals
Odor odorless
Density 3.85 g/cm3[1]
Melting point 1,095 °C (2,003 °F; 1,368 K)[2]
Solubility in hydrochloric acid soluble
Refractive index (nD)
ne = 1.5534, no = 1.6776
Structure
Crystal structure
Rhombohedral, hR126[3]
Space group
R3c, No. 161
Lattice constant
a = 1.2529 nm, c = 1.274 nm
Hazards
GHS labelling:
Pictograms
GHS07: Exclamation mark
Signal word
Warning
Hazard statements
H302
Precautionary statements
P264, P270, P301+P312, P330, P501
Flash point Non-flammable
Safety data sheet (SDS) MSDS
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)
Infobox references

Barium borate is an inorganic compound, a borate of barium with a chemical formula BaB2O4 or Ba(BO2)2. It is available as a hydrate or dehydrated form, as white powder or colorless crystals. The crystals exist in the high-temperature α phase and low-temperature β phase, abbreviated as BBO; both phases are birefringent, and BBO is a common nonlinear optical material.

Barium borate was discovered and developed by Chen Chuangtian and others of the Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences.

  1. ^ Barium Borate (a-BBO) Crystal. casix.com
  2. ^ BBO Crystals – Beta Barium Borate and Lithium Borate Archived February 12, 2012, at the Wayback Machine. clevelandcrystals.com
  3. ^ Guiqin, Dai; Wei, Lin; An, Zheng; Qingzhen, Huang; Jingkui, Liang (1990). "Thermal Expansion of the Low-Temperature Form of BaB2O4". Journal of the American Ceramic Society. 73 (8): 2526–2527. doi:10.1111/j.1151-2916.1990.tb07626.x.

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