Hydrochloric Acid. A Presentation by Carmen Omota. Physical and Chemical Properties. Appearance: colorless, fuming liquid Odor: pungent odor Boiling point: 53C (127F) Melting point: -74C (-101F). Solubility: infinite in water with slight
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
A Presentation by Carmen Omota
colorless, fuming liquid
infinite in water with slight
evolution of heat
190 mm Hg @ 25C (77F)
1.18 (water = 1)
Health Rating: 3 – Severe (poison)
Flammability Rating: O - None
Reactivity Rating: 2 - Moderate
Contact Rating: 3 – Severe (Corrosive)
Lab Protective Equipment: goggles & shield; lab coat & apron;
vent hood; proper gloves
Storage Color Code : white (corrosive)
Inhalation: Corrosive! Inhalation of vapors can cause coughing,
choking, inflammation of the nose, throat, and upper
respiratory tract, and in severe cases … DEATH!
Ingestion: Corrosive! Swallowing HCL can cause immediate pain
and burns of the mouth, throat, esophagus and
gastrointestinal tract. May cause nausea, vomiting, and
Skin Contact: Can cause redness, pain, and severe skin burns.
Concentrated solutions cause deep ulcers and discolor skin.
Eye Contact: Vapors are irritating and may cause damage to
the eyes. Contact may cause severe burns and permanent
Chronic Exposure: Long – term exposure to concentrated
vapors may cause erosion of teeth. Long – term exposures
seldom occur due to the corrosive properties of the acid.
Stability: stable under ordinary conditions of use and storage.
Hazardous Decomposition Products:
when heated to decomposition, it emits toxic hydrogen
chloride fumes and will react with water or steam to
produce heat and toxic and corrosive fumes.
Incompatibilities: A strong mineral acid, concentrated HCl is
incompatible with many substances and highly reactive
with strong bases, metals, metal oxides, hydroxides, amines,
carbonates, and other alkaline materials. It is also
incompatible with materials such as cyanides, sulfites,
sulfides, and formaldehyde.
Conditions to avoid: heat and direct sunlight.
Store in a cool, dry, ventilated storage area with acid resistant
floors, and good drainage.
Protect from physical damage.
Do not wash out container and use it for other purposes.
When diluting, the acid should always be added slowly to
water, and only in small amounts.
Never use hot water and never add water to the acid. Water
added to acid can cause uncontrolled boiling and splashing.
Observe all warnings and precautions listed for the product!!!
When released into the soil, this material is NOT expected
to biodegrade. When released into the soil, this material
may leach into groundwater.
This material is expected to be toxic to the aquatic life.
Whatever cannot be saved for recovery or recycling should be handled as hazardous waste and sent to a
R C R A approved waste facility.
Although HCl acid recovery technology exists for large scale manufacturers, no cost-effective method had been developed
for galvanizers and small – to medium – steel plants until
Beta developed its new system between 1989 and 1994.
The new HCl recovery recycles used acid solution from the
pickling process. Without recycling, waste HCl solution is
disposed of by injection into deep wells or the acid is
neutralized and the waste is then transported to a disposal
site. With the new recovery system, acid is pumped through a
prefilter to an evaporator where it is heated until the water
and acid vaporize, leaving only concentrated iron
chloride that is recuperated.
The water /acid vapor is condensed into HCl, reconcentrated, and pumped
to the pickling tanks.
The acid is recovered, the water reused,  product is sold at a profit.
The acid recovery system delivers significant savings. Currently,
a typical small – to medium – size steel manufacturing plant
spends $14 / ton to clean its products. With Beta’s recovery
system, manufacturers can slash that cost to just $3.40 / ton.
More over, acid recovery requires minimal labor, and the life
expectancy of a recovery system exceeds that of a conventional
acid neutralization system by at least 3 yrs.
The recovery system also saves energy by eliminating the acid –
neutralization step and the need to transport and dispose of