Materials for Biocide Formulation

Active ingredient:  ortho-phenylphenol

Other Names:  2-phenylphenol (IUPAC); biphenyl-2-ol (IUPAC); o-phenylphenol; Hydroxybiphenyl; 2-Hydroxybiphenyl; Orthoxenol; o-Xenol;  OPP

CAS: 90-43-7

Formula: C12H10O

Chemical Structure:

Molecular weight: 170.207 g/mol

Chemical and Physical Properties:

Active ingredient content: 99%

Appearance & Physical State: off white fine powder

pH:  (not applicable)

Melting Point: 56℃

Boiling Point: 282°C at 760 mmHg

Flash Point: 140.3°C

Stability: Stable under recommended storage conditions. Combustible. Incompatible with strong oxidizing agents, halogens.  Avoid contact with: amines, strong bases, strong oxidizers. Flammable hydrogen may be generated from contact with metals such as aluminum.

Storage Conditions: store in a cool, dry and well-ventilated areas away from incompatible substances.  Keep away from heat, sparks, and flame.  Do not store in metal containers.

Packing:  25 kg in reinforced polyethylene plastic bag.

Product Description and Uses:  an effective biocide widely used for disinfection, material preservation and in agricultural.  OPP or its sodium salts can be formulated into a general surface disinfectant for households, hospitals, nursing homes, farms, laundries, barber shops, and food processing plants.  OPP can be formulated into preservative to protect metal-working fluids, slurries, paints, stains, construction products, cleaning solutions, and wood products from biodegradation.  For agricultural applications, OPP is used for disinfection of seed boxes, and as an agricultural postharvest fungicide for waxing of citrus fruits and pears.  Sodium orthophenyl phenol (CAS 132-27-4), is a preservative used to treat the surface of citrus fruits to prolong shelf life.  It is also used as an intermediates for other synthesis of other fungicides, and is a raw material for the manufacturing of certain flame retardants.