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Potassium bromide crystal optic disc, 13mm x 2mm, polished both sides

Catalog NumberACMA00015651

CategoryWindows & Spheres

Description
Potassium bromide appears as odorless colorless crystals or white crystalline powder or white granular solid with a pungent bitter saline taste. Aqueous solutions are neutral (pH about 7). (NTP, 1992);DryPowder; OtherSolid; PelletsLargeCrystals
IUPAC Name
potassium;bromide
Molecular Weight
119g/mol
Molecular Formula
KBr;BrK
Canonical SMILES
[K+].[Br-]
InChI
InChI=1S/BrH.K/h1H;/q;+1/p-1
InChI Key
IOLCXVTUBQKXJR-UHFFFAOYSA-M
Boiling Point
2615 °F at 760 mm Hg (NTP, 1992);1435 °C
Melting Point
1346 °F (NTP, 1992);730 °C
Density
2.75 at 77 °F (NTP, 1992);2.74 g/cu cm at 25 °C
Solubility
greater than or equal to 100 mg/mL at 59° F (NTP, 1992);In water, 67.8 g/100 g at 25 °C;Soluble in water;1 g dissolves in 1.5 mL water, 1 mL boiling water;1 g dissolves in 250 mL alcohol, 21 mL boiling alcohol, 4.6 mL glycerol;Soluble in glycerol; slightly soluble in alcohol, ether;Sparingly soluble in ethanol, diethyl ether
Application
The Potassium bromide crystal optic disc, measuring 13mm x 2mm with both sides polished, serves a pivotal role in the field of infrared spectroscopy and optical applications. This disc leverages the unique properties of potassium bromide, a material known for its low refractive index and expansive spectral range extending into the infrared spectrum with minimal absorption. In practice, this makes the potassium bromide disc an excellent choice for use as an infrared optical window and substrate for interferometers, where it facilitates the accurate transmission of infrared radiation. The disc can be used to suspend powder samples in transmission infrared spectroscopy, thus enabling detailed analysis without interference in the transmitted signal. Embracing this crystal's optical capabilities, the optic disc supports various scientific investigations and applications, ensuring precision and clarity in infrared spectroscopic measurements.
Color/Form
Colorless crystals or white granules or powder;Colorless cubic crystals;White, crystalline powder or granules
Complexity
2
Covalently-Bonded Unit Count
2
EC Number
231-830-3
Exact Mass
117.88204g/mol
Formal Charge
0
Heavy Atom Count
2
MeSH Entry Terms
KBr;potassium bromide
Monoisotopic Mass
117.88204g/mol
NSC Number
77367
Odor
Odorless
Other Experimental
Hygroscopic;Somewhat hygroscopic;VP: 1 mm Hg at 795 °C
Refractive Index
Index of refraction = 1.559
Rotatable Bond Count
0
Stability
Stable under recommended storage conditions.
UNII
OSD78555ZM
Vapor Pressure
1 mm Hg at 1463 °F (NTP, 1992)
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