CAS 10035-10-6: Hydrobromic Acid (HBr)

Identity

CAS Number10035-10-6
Molecular FormulaHBr
IUPAC Namehydrobromic acid
Molecular Weight80.91 g/mol
SMILESBr
Synonymshydrogen bromide, HBr, bromine hydride, bromonium

2D Structure

Physical Properties

Density1.49 g/mL at 25°C
Boiling Point-66.8°C
Melting Point-86.9°C
Flash PointNone°C
Vapor Pressure0.5 kPa at 20°C
Refractive IndexnD = 1.438
Dielectric Constantε = 7.0

Safety & GHS Classification

GHS05Irritant

Storage: Store in amber glass or PTFE containers with ventilated caps. Keep away from oxidizers, strong bases, and reactive metals (sodium, potassium). Hydrobromic acid fumes in moist air — store in a corrosion-resistant acid cabinet with secondary containment. Use in a fume hood with acid-resistant PPE including face shield.

Material Compatibility Matrix

Plastics

MaterialRating
PTFEExcellent
PVCGood
PEGood
PPExcellent
PEEKExcellent
PVDFExcellent

Rubbers

MaterialRating
VitonGood
NBRPoor
EPDMFair
SiliconeFair
FKMGood

Metals

MaterialRating
Stainless 316Fair
AluminumSevere Effect
CopperFair
BrassPoor

Applications

External References: PubChem

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