MSDS

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7. Handling and Storage
Store in a cool, dry, ventilated storage area with acid resistant floors and good drainage. Protect
from physical damage. Keep out of sunlight and direct heat, water and incompatible materials. Do
not wash out container and use it for other purposes. When diluting, the acid should always be
added slowly to the water. Never use hot water and never add water to acid. Water added to acid
can cause uncontrolled boiling and splashing. Empty acid containers may be hazardous since
they retain acid residues of liquid and vapor. Observe all warnings and precautions stated on the
acid container label. Wear personal protective equipment when handling, opening containers and
using hydrochloric acid.
8. Exposure Control and Personal Protection
Airborne Exposure Limits:
OSHA Permissible Exposure Limit (PEL) 5 ppm (Ceiling) (7 mg/m
3
)
NIOSH Relative Exposure Level (REL) 5 ppm (Ceiling) (7 mg/m
3
)
ACGIH Threshold Limit Value (TLV) 2 ppm (Ceiling) (TWA)
NIOSH Immediately Dangerous Level (IDLH) 50 ppm
Ventilation: A system of local and/or general exhaust is recommended to keep exposure below
the Airborne Exposure Limits. Local exhaust ventilation is generally preferred because it can
control the emissions of the acid at the source, preventing dispersion into the occupied area.
Personal Respirators (NIOSH Approved): If exposure limits are exceeded and engineering
controls are not feasible, a full face respirator with an acid gas cartridge may be worn up to 50
times the permissible exposure limit (PEL). For emergencies or instances where the exposure
levels are not known, use full face, positive pressure, air supplied respirator. WARNING! Air
purifying respirators do not provide protection in oxygen deficient atmospheres.
Skin Protection: Rubber or neoprene gloves and additional protection including impervious
boots, apron, or coveralls, are needed in areas of unusual exposure to prevent skin contact.
Eye Protection: Use safety glasses with side shields, chemical safety goggles and/or a full face
shield where splashing is possible. Maintain eye wash fountain and quick drench facilities (safety
shower) in work areas.
9. Physical and Chemical Properties
Appearance: Clear, colorless liquid. Odor: Pungent, acrid odor.
Solubility: Infinitely soluble in water. Specific Gravity: 1.155 – 1.162
Percent Volatile: 100% Boiling Point: 180
O
F – 220
OF
Vapor Density: 1.27 (Air =1) Vapor Pressure: 35 mm Hg @ 86 O
F
Evaporation Rate: < 1 (butyl acetate = 1) pH: < 1
10. Stability and Reactivity
Stability: Stable under ordinary conditions of use and storage. Avoid heat and direct sunlight.
Hazardous Decomposition Products: When heated to decomposition, emits toxic hydrogen
chloride fumes and will react with water or steam to produce heat and toxic, corrosive fumes.