8.10278

Dibromomethane

(stabilised) for synthesis

• Synonym(s): Dibromomethane, Methylene bromide
• Empirical Formula (Hill Notation): CH₂Br₂
• CAS Number: 74-95-3
• Molecular Weight: 173.83
• MDL number: MFCD00000168
• UNSPSC Code: 12352101
• EC Index Number: 200-824-2
• NACRES: NA.22

Properties

• vapor pressure: 44 hPa ( 20 °C)
• Quality Level: 200
• Assay: ≥98.5% (GC)
• form: liquid
• potency: 108 mg/kg LD₅₀, oral (Rat); >4000 mg/kg LD₅₀, skin (Rabbit)
• bp: 95-97 °C/1013 hPa
• mp: -53 °C
• solubility: 11.7 g/L
• density: 2.49 g/cm³ at 20 °C
• storage temp.: 2-30°C
• InChI: 1S/CH2Br2/c2-1-3/h1H2
• InChI key: FJBFPHVGVWTDIP-UHFFFAOYSA-N

Description

Application

• Ultraviolet Dosimetry: Dibromomethane facilitated the development of photochromic perovskite nanocrystals, enhancing their application in ultraviolet radiation monitoring and dosimetry, critical for environmental and health safety measures (Chen et al., 2024).
• Energy Storage Solutions: It was utilized as both solvent and electrophilic cross-linker in the synthesis of highly porous hyper-cross-linked polymers, which are effective in methane storage under high pressures, showcasing its role in advancing material sciences for energy applications (Yang et al., 2024).
• Halogenated Compound Sensing: Dibromomethane was instrumental in the creation of photoluminescent copper(I) iodide alkylpyridine thin films, used as sensors for volatile halogenated compounds, thus enhancing detection capabilities in chemical safety and environmental monitoring (Jamshidi et al., 2023).

Analysis Note

Assay (GC, area%): ≥ 98.5 % (a/a)
Density (d 20 °C/ 4 °C): 2.485 - 2.500
Identity (IR): passes test

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H332 - H412 - H420
• Precautionary Statements: P261 - P271 - P273 - P304 + P340 + P312 - P501 - P502
• Hazard Classifications: Acute Tox. 4 Inhalation - Aquatic Chronic 3 - Ozone 1
• Storage Class Code: 6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• WGK: WGK 2
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable