Abatement Method: Dry Scrubbing or Water Scrubbing (water scrubbing requires a high concentration of a strong base in the liquor)
Brom
Br2
ine Overview:
  • Dark red-brown liquid
  • Bromine evaporates readily at room temperature from liquid to a red vapor with a strong pungent odor resembling chlorine
  • Pungent, suffocating odor
  • Odor threshold: 0.05 ppm
Chemical Formula: Br2
CAS #: 7726-95-6
Molecular Weight: 159.81 gram/mole
Risks:
  • Fire may produce irritating, corrosive and toxic gases
  • Extremely corrosive in presence of aluminum, of zinc, of stainless steel (304, 316), of copper
Incompatibles: reducing agents, combustible materials, organic materials, alkali metals, powdered metals, steel, iron, copper, organic materials
Water Solubility: 35 g / L @ 20 C
NFPA Ratings: Health = 4; Fire= 0; Reactivity= 1;
IDLH: 3 ppm
ACGIH TWA / ACGIH STEL : 0.1 ppm / 0.2 ppm
Signs & Symptoms of Bromine Exposure:
  • Cause severe respiratory tract, eyes, and skin burns
  • Very toxic by inhalation
Abatement Method: Dry Scrubbing or Water Scrubbing (water scrubbing requires a high concentration of a strong base in the liquor)
Chlorin
Cl2
e Overview:
  • Toxic, corrosive greenish yellow gas;
  • Strong suffocating, irritating, bleach-like odor
  • Odor threshold: 0.08 – 30 ppm
  • Gas is heavier than air so it will collect in low areas

Chemical Formula: Cl2
CAS #:7782-50-5
Molecular Weight: 70.91 gram/mole
Risks:
  • Highly toxic and corrosive; powerful oxidizer
  • Reacts violently with combustible materials, reducing agents and many other substances
  • Extremely corrosive to iron, steel, copper, bronze and zinc in the presence of moisture
Incompatibles: Liquid or gaseous chlorine can react violently with many combustible materials and other chemicals: water, metal halides, carbon. In presence of water, copper may burn spontaneously. Titanium will burn at ambient temperature in the presence of dry chlorine
Water Solubility: 0.7 g/100mL
NFPA Ratings: Health = 4 ; Fire= 0; Reactivity= 0; Special= OXY
IDLH: 10 ppm
OSHA Ceiling/ ACGIH TWA: 1 ppm; 0.3 mg/m3 / 0.5 ppm; 1.5 mg/m3
Signs & Symptoms of Cl2 Exposure:
  • Cause severe respiratory tract, eyes, and skin burns
  • Very toxic by inhalation

Abatement Method: Dry Scrubbing or Water Scrubbing (water scrubbing requires a high concentration of a strong base in the liquor)
F
F2
luorine Overview:
  • Sharp, penetrating, irritating odor
  • Pale yellow to greenish color, toxic, corrosive oxidizing gas; cryogenic liquid
  • Sinks and boils in water
  • Odor threshold: 0.01 ppm
Chemical Formula: F2
CAS #:7782-41-4
Molecular Weight: 37.997 gram/mole
Risks:
  • Reacts violently with water to generate toxic gas
  • Produce poisonous gas in fire
  • Contact with combustible material may cause fire
  • Extremely flammable in presence of: reducing materials, combustible materials and organic materials
Incompatibles: Combustible materials, reducing materials, combustible materials, organic materials, metals, alkalis and moisture
Water Solubility: Decomposes / reacts
NFPA Ratings: Health = 4 ; Fire= 0; Reactivity= 4; Special= WATER, OXY
IDLH: 25 ppm
OSHA TWA / ACGIH TWA: 0.1 ppm; 0.2 mg/m3 / 1 ppm; 1.6 mg/m3
Signs & Symptoms of F2 Exposure:
  • Causes severe respiratory tract, eyes, and skin burns
  • Very toxic by inhalation