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Product: HYDROCHLORIC ACID
Page
4
of
7
ISSUE: 2 ISSUE DATE: 12/11/2015
SECTION 8
EXPOSURE CONTROLS AND PERSONAL PROTECTION
Exposure control measures
From National Occupational Health & Safety Commission (NOHSC) Worksafe Australia -
Hydrogen chloride: 7.5mg/m³ (5ppm) (peak limitation) TWA
Biological monitoring
No biological limit allocated.
Engineering controls
Ensure that adequate ventilation is provided. Maintain air concentrations below recommended exposure
standards. Avoid generating and inhaling mists and vapours. Keep containers closed when not in use.
Always wash hands before eating, drinking or using the toilet.
Individual protection measures
Eye and face protection:
Wear safety goggles.
Skin protection:
Use solvent resistant gloves, nitrile for longer term protection or PVC and
neoprene for incidental splashes.
Respiratory protection:
If work practices do not maintain airborne level below the exposure
standard, use appropriate respiratory protection equipment. When using
respirators, select an appropriate combination of mask and filter. Select a
filter for organic gases and vapours (boiling point > 65°C). Respirators
should comply with AS1716 or an equivalent approved by a state/territory
authority.
Thermal hazards:
Not applicable.
SECTION 9
PHYSICAL AND CHEMICAL PROPERTIES
Appearance:
Clear, colourless to yellow fuming liquid
Odour:
Hydrogen chloride gas
Odour threshold (ppm):
Data not available
pH:
< 1
Melting point/freezing point (°C):
-63 to -27
Initial boiling point and boiling range (°C):
91 - 98
Flash point (°C):
Data not available
Evaporation rate (Butyl acetate = 1):
Data not available
Flammability:
Non-combustible
Upper/lower flammability or explosive limits (%):
Data not available
Vapour pressure (mmHg @ 20°C):
11 - 115
Vapour density (air = 1):
1.26
Density (g/ml @ 20°C):
1.18
Solubility (kg/m
3
):
Miscible with water
Partition coefficient: n-octanol/water:
Data not available
Auto-ignition temperature (°C):
Data not available
Decomposition temperature (°C):
Data not available
Kinematic viscosity (mm
2
/s @ 25°C):
Data not available