Ozone Green chemicals
In 1785, people discovered the gas generated by new substance, which was named as OZONE, in1870, ozone was used in industry. ozone is the allotrope of oxygen and composes of three oxygenatom with grass smell, the density is 1.658 (air: 1); the half life of 1% water solution under normal temperature is 16 minutes, ozone is a kind of colorless gas without toxin, under normal tempera-ture, it can instantly generate nascent oxygen (O);(O) is a kind of very active substance and featuresstrong ability in chemical reaction strong oxidation ability, and can deoxidize into oxygen O2.Ozonesterilizes and eliminates odor with this property.

Ozone is the allotrope of oxygen and composes of three oxygen atoms, oxygen atom arranges intriangle, and the included angle of O-O-O is 116°49? length of O-O bond is 1.278?.003 angstrom, andthe specific gravity of it is 1.66 times of air, and the activeness of it is over 600 times of oxygen, there-fore, it is alsocalled as "active oxygen". Ozone has special and irritant odor, under low concentration, it smells fresh, ozone is light blue gas and the liquid is dark brown under high pressure. It is one of the trongest oxidant, the density is 1.658 (air: 1). After cold treatment, ozone gas can convert into liquid, and the density is 1.71,boiling point is -112.3℃, dissolubility in water is higher than oxygen, ozone haspoor stability and can au-
tomatically decompose into oxygen under normal temperature, and immediately change into oxygen under 270℃. The half life of 1% water solution under normal temperature is 16minutes. Ozone sterilizes and eliminates odor with this property.

Ozone is of great importance for atmosphere. There is an ozone layer formed by the ultraviolet radiation in the stratosphere 12-35 km above the ground. It may absorb 90% of ultraviolet radiation, and protect the living things on the earth.So ozone is regular composition of high-altitude air. There is little ozone in the normal air near the ground. Most of ozo-ne in the room comes from outdoors. If there is no indoor ozone source, the indoor ozone concentration is about 20-30% of outdoor concentration. Indoor ozone mainly come from photocopiers, fax machine, laser printer, other dischar-ging home appliance, ultraviolet lamp, electronic sterilization equip-ment and so on.

Application of Ozone Sterilizing and Eliminating Odor:
1.Eliminate Odor and Purify Air: ozone features strong oxidation performance and can
instantly decompose odor, bad smell, bacteria, virus, toxic gas and formaldehy de generated from new furniture and decoration, thus achieving the functions of steriliz-ing, eliminating odor and purifying air.

2.Effective Sterilizing and Disinfection Function: It is proven by scientific experiment that ozone can instantly and effectively kill Escherichia coli, Bacillus cereus,megacin, dysentery bacterium, salmonellosis, staphylococcus aureus, flue virus and hep-atitis virus etc.

3.Fresh Keeping: for vegetal and fruit storage,ozone,beside killing and restraining
bacteria and preventing rot, it can also preventing aging and keeping fresh.

4.Disinfect and Degradation Pesticide: ozone can break the chemical bond of pestici-
de and make it to generate chemical changes without any poisoning.

5.Prevent Disease and Health Care : When content of ozone in air is less than 0.01ppm(0.15mg/m3), it benefits to human health. Additionally, scientific researchers have alsodiscovered ozone can restrain the growth of cancer cells.