some use of flour brightener

The active ingredients of flour brightener benzoyl peroxide (BPO), learning called benzoyl peroxide , it is our late eighties and started from abroad commonly used in flour food additives , flour brightener is mainly used to bleach flour, while speeding up the  PVC heat stabilizer for fittings ripening of flour . The main purposes : as a plastic catalyst , oil refining, bleaching wax , pharmaceutical manufacturing.
Literature for vinyl units ( vinyl chloride, acrylonitrile , etc. ) and photochemical reactions of polymerization initiators, heat or friction will spontaneously explode , contacting combustibles may cause fire , shall be stored in a cool, dark and attention to fire prevention . The main raw material
The main raw material is flour brightener benzoyl peroxide .
Chemical Characteristics
MF : C14H10O4; (C6H5 C O) 2 O2
Appearance: white or light yellow thin columns , slightly bitter almond odor
Molecular weight: 242.23 boiling point  PVC foaming board stabilizer decomposition ( explosion )
Physical Characteristics
Melting point : 103 ℃ ( decomposition )
Solubility : soluble in water , methanol, soluble in alcohol, ether, acetone , benzene , chloroform, carbon disulfide
Density : relative density ( water = 1 ) 1.33 Stability stable
Health hazard pathways : inhaled , ingested.
Health hazards : This pair of upper respiratory tract irritation. The skin has a strong , irritation and sensitization. Entering the eye can cause damage. Production method
30% of the hydrogen peroxide and caustic reaction of sodium peroxide solution, then with benzoyl chloride derived  epoxidized soybean oil reaction. Reaction conducted at about 0 ℃ , high temperature is caused by decomposition of hydrogen peroxide , benzoyl chloride is easily affected by acid hydrolysis yields. The resultant precipitate benzoyl peroxide filtering, washing , drying derived products . Industrial products benzoyl peroxide content of up to 99% ( two items ) , mp 102-106 ℃.
Mechanism: benzoyl peroxide and the enzyme in the flour under the action of water , react to release active oxygen oxidation of a small amount of flour to wheat flour colored substance reaches the purpose of whitening , and generate the acid, able to flour from mildew role