HYDROGEN PEROXIDE

 

    Product Information

Synonyms

:

Carbamide Peroxide, Hydrogen Dioxide, Hydroperoxide, Urea Peroxide.

CAS No

:

7722-84-1

Chemical Formula

:

H2O2

Molecular Weight

:

34.01

 

    Physical & Chemical Properties

Appearance

:

Clear, colorless liquid

Odor

:

Slight acrid odor

Solubility

:

Infinitely soluble

Density

:

1.11

pH

:

3.3

Boiling Point

:

150C° (302°F)

Melting Point

:

25°C (-13°F)

Vapor Density (Air=1)

:

1.17

Vapor Pressure (mm Hg)

:

25 @ 30°C (86°F)

Evaporation Rate

:

< 1

 

    Uses

Hydrogen peroxide is a strong oxidising agent and is widely used as a
bleaching agent. In dilute solutions it is an efficient antiseptic.

It is used in bleaching and deodorizing of textiles, wood pulp hair fur etc.

It is one of the most important source of organic and inorganic peroxides,
pulp and paper industry, plasticizers, rocket fuel , foam rubber.

It is used in the manufacture of glycerol, antichlor, dyeing, electroplating, antiseptic, laboratory reagent, epoxidation , hydroxylation, oxidation and reduction , viscosity control for starch and cellulose derivatives refining and cleaning metals,

It is used as bleaching and oxidizing agents in foods, neutralizing agent in
wine distillation, seed disinfectant, substitute for chlorine in water and
sewage treatment.

 

   Safety & First aid

Inhalation:
Vapors are corrosive and irritating to the respiratory tract. Inhalation of mist may burn the mucous membrane of the nose and throat. In severe cases, exposures may result in pulmonary edema and death.

Ingestion:
Corrosive and irritating to the mouth, throat, and abdomen. Large doses may cause symptoms of abdominal pain, vomiting, and diarrhea as well as blistering or tissue destruction. Stomach distention (due to rapid liberation of oxygen), and risk of stomach perforation, convulsions, pulmonary edema, coma, possible cerebral edema (fluid on the brain), and death are possible.

Skin Contact:
Corrosive. Symptoms of redness, pain, and severe burn can occur.

Eye Contact:
Vapors are very corrosive and irritating to the eyes. Symptoms include pain, redness and blurred vision. Splashes can cause permanent tissue destruction.

Aggravation of Pre-existing Conditions:
Persons with pre-existing skin disorders or eye problems or impaired respiratory function may be more susceptible to the effects of the substance.

 

First Aid

Inhalation:
Remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical attention immediately.

Ingestion:
If swallowed, do not induce vomiting. Give large quantities of water. Never
give anything by mouth to an unconscious person. Get medical attention immediately.

Skin Contact:
Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Get medical attention immediately. Wash clothing before reuse. Thoroughly clean shoes before reuse. If allowed
to dry on clothing, evaporation leads to concentration and increased possibility of ignition.

Eye Contact:
Immediately flush eyes with plenty of water for at least 15 minutes, lifting lower and upper eyelids occasionally. Get medical attention immediately.

 

Fire Fighting Measures

Fire:
Not combustible, but substance is a strong oxidizer and its heat of reaction with reducing agents or combustibles may cause ignition. It may increases
the flammability of combustible, organic and readily oxidizable materials.

Explosion:
Contact with oxidizable substances may cause extremely violent combustion. Drying of concentrated hydrogen peroxide on clothing or other combustible materials may cause fire or explosion. Sealed containers may rupture when heated.

Fire Extinguishing Media:
Water spray may be used to extinguish surrounding fire and cool exposed containers. Water spray will also reduce fume and irritant gases.

Special Information:
In the event of a fire, wear full protective clothing and self-contained breathing apparatus with full face-piece operated in the pressure demand or other positive pressure mode.

    Special Features

Reactivity and Incompatibility
Contact with many organic compounds can lead to immediate fires or violent explosions. Hydrogen peroxide reacts with certain organic functional groups (ethers, acetals, etc.) to form peroxides, which may explode upon concentration. Reaction with acetone generates explosive cyclic dimeric and trimeric peroxides. Explosions may also occur on exposure of hydrogen peroxide to metals such as sodium, potassium, magnesium, copper, iron, and nickel.

Flammability and Explosibility:
Hydrogen peroxide is not flammable, but concentrated solutions may undergo violent decomposition in the presence of trace impurities or upon heating.