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Potassium Bromide ( KBr ) Pure For Analytical Purpose - 100g
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Description
Potassium Bromide (KBr)
Other Names: KBr, Bromide of potassium
Chemical Formula: KBr
Molar Mass: 119.00 g/mol
CAS Number: 7758-02-3
Appearance: White, crystalline powder or granules
Odor: Odorless
Physical and Chemical Properties
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Density: ~2.75 g/cm³
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Melting Point: 734 °C
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Boiling Point: ~1435 °C
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Solubility in Water: ~53.5 g/100 mL at 25 °C (highly soluble)
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Solubility in Alcohol: Slightly soluble
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pH (5% solution): ~5.5–8.0 (neutral to slightly basic)
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Refractive Index (powder): Often used in IR spectroscopy as a transparent matrix
Applications
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Infrared (IR) Spectroscopy: Used as a matrix material for pellet formation in solid sample analysis due to high transparency to IR light
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Analytical Chemistry: Employed in high-purity form as a standard or reagent
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Optical Applications: Used in optical components and windows for IR instruments (dry, pressed forms)
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Chemical Synthesis: Precursor or reactant in halide exchange or salt formation reactions
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Crystallography: Sometimes used in single-crystal growth or ionic lattice modeling
Safety Information
Signal Word: ⚠️ Warning
H315 (12.6%): Causes skin irritation [Warning Skin corrosion/irritation]
H319 (91.4%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
H335 (12.3%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501
Handling and Storage
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Handling: Avoid dust formation. Use in well-ventilated areas or under fume hoods
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Storage: Store in a tightly sealed container in a dry, cool, and well-ventilated place. Protect from moisture
Environmental Considerations
Not classified as environmentally hazardous, but large amounts should not be released into surface water due to potential ionic imbalance. Dispose of according to local environmental rules.