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- CAS:
- 7782-50-5
- MF:
- Cl2
- MW:
- 70.91
Properties
- Melting point::
- −101 °C(lit.)
- Boiling point::
- −34 °C(lit.)
- Density :
- 1.468(0℃)
- vapor density :
- 2.48 (vs air)
- vapor pressure :
- 4800 mm Hg ( 20 °C)
- storage temp. :
- -20°C
- solubility :
- slightly soluble in H2O
- form :
- Liquid
- color :
- Clear yellow-green
- Odor:
- Highly pungent, bleach-like odor detectable at 0.02 to 3.4 ppm (mean = 0.08 ppm)
- PH:
- 1.8 (20°C, 6.4g/L)
- Odor Threshold:
- 0.049ppm
- Resistivity:
- 1E9 μΩ-cm, 20°C
- Water Solubility :
- 0.7 g/100 mL
- Electrical Conductivity:
- 0.01 S/m
- Thermal Conductivity:
- 0.0089 W/(m·K)
- Specific Heat Capacity:
- Cp(gas): 0.48 J/(g·K), at 25℃
- Merck :
- 13,2112
- BRN :
- 3902968
- Henry's Law Constant:
- 6.1×10-4 mol/(m3Pa) at 25℃, Aieta and Roberts (1986)
- Dielectric constant:
- 2.1(-46℃)
- Exposure limits:
- ACGIH:TLV-TWA 0.1 ppm (0.29 mg/m3); TLV-STEL 0.4 ppm (1.16 mg/m3)
OSHA:PEL-Ceiling 1 ppm (3 mg/m3)
NIOSH:REL-Ceiling 0.5 ppm [15-min]
- Stability::
- Stable. Incompatible with reducing agents, alcohols.
- InChI:
- 1S/Cl2/c1-2
- InChIKey:
- KZBUYRJDOAKODT-UHFFFAOYSA-N
- SMILES:
- ClCl
- LogP:
- -0.85 at 20℃
- CAS DataBase Reference:
- 7782-50-5(CAS DataBase Reference)
- NIST Chemistry Reference:
- Chlorine(7782-50-5)
- EPA Substance Registry System:
- Chlorine (7782-50-5)
SecurityInformation
- Symbol(GHS) :
-




GHS03,GHS04,GHS06,GHS09
- Signal word :
- Danger
- Hazard statements :
- H270-H280-H315-H319-H330-H335-H410
- Precautionary statements :
- P273-P302+P352-P304+P340+P310-P305+P351+P338-P403+P233-P410+P403
- target organs:
- Respiratory system
- PPE:
- Eyeshields, Faceshields, Gloves, multi-purpose combination respirator cartridge (US)
- Hazard Codes :
- T,N,O
- Risk Statements :
- 23-36/37/38-50-8
- Safety Statements :
- 9-45-61
- RIDADR :
- UN 1017 2.3 (CHLORINE)
- RIDADR :
- UN 3520 2.3 (CHLORINE, ADSORBED)
- OEL:
- Ceiling: 0.5 ppm (1.45 mg/m3) [15-minute]
- WGK Germany :
- 2
- RTECS :
- FO2100000
- TSCA :
- TSCA listed
- DOT Classification:
- 2.3, Hazard Zone B (Gas poisonous by inhalation)
- HazardClass :
- 2.3
- Storage Class:
- 2A - Gases
- Hazard Classifications:
-
Acute Tox. 2 Inhalation
Aquatic Acute 1
Eye Irrit. 2
Ox. Gas 1
Press. Gas Compr. Gas
Skin Irrit. 2
STOT SE 3
- Hazardous Substances Data:
- 7782-50-5(Hazardous Substances Data)
- Toxicity:
- LC50 (1 hr) in rats, mice (ppm): 293, 137 (K. C. Back et al., Reclassification of Materials Listed as Transportation Health Hazards (TSA-20-72-3; PB 214-270, 1972) pp A-182-183)
- IDLA:
- 10 ppm
- REACH Registrations:
- Active
- Excepted Quantities:
- Forbidden
- Use:
- Chlorine is used to disinfect water and is part of the sanitation process for sewage and industrial waste. During the production of paper and cloth, chlorine is used as a bleaching agent.
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