| CAS
NO. |
90-41-5 |
|
| EINECS
NO. |
201-990-9 |
| FORMULA |
C6H5C6H4NH2 |
| MOL
WT. |
169.23 |
| H.S.
CODE |
|
| TOXICITY |
Oral rat LD50: 2340 mg/kg |
| SYNONYMS |
2-Aminobiphenyl;
2-Biphenylamine; |
| (1,1'-Biphenyl)-2-amine; Biphenyl-2-ylamin (German); Bifenil-2-ilamina (Spanish); Biphényle-2-ylamine
(French); o-Phenylaniline; |
| SMILES |
|
|
CLASSIFICATION
|
BIPHENYLS
/
|
|
PHYSICAL
AND CHEMICAL PROPERTIES
|
| PHYSICAL
STATE |
white
to purple crystals
|
| MELTING
POINT |
49
- 52 C |
| BOILING
POINT |
299
C |
| SPECIFIC
GRAVITY |
|
| SOLUBILITY
IN WATER |
Slightly
soluble (soluble in alcohol, ether and chloroform)
|
| AUTOIGNITION
|
450
C
|
| pH |
|
| VAPOR
DENSITY |
|
| NFPA
RATINGS |
Health: 1; Flammability: 0; Reactivity: |
| REFRACTIVE
INDEX |
|
| FLASH
POINT |
> 110 C |
| STABILITY |
Stable
under ordinary conditions. Air sensitive. |
|
GENERAL
DESCRIPTION & APPLICATIONS
|
|
Biphenyl (also
called Diphenyl, but exactly one of two compounds. The other is o-phenylphenol,
used to prevent the growth of moulds ) is an aromatic hydrocarbon; molecule
structure is composed of two six-sided carbon rings connected at one carbon site
on each ring. Pure biphenyl is a toxic colourless crystalline solid with a
pleasant odour; melting point 70 C, boiling point 255 C, which gives plates or
monoclinic prismatic crystals; it is insoluble in water but soluble in ordinary
organic solvents. It is directly used in the preservation of citrus fruits as a
fungistat in transportation containers. It is a raw material for polychlorinated
diphenyls (PCB) in which chlorine replaces hydrogen in biphenyls. There are 209
chlorinated isomers of biphenyl theoretically. But PCBs are referred to the
biphenyl compounds with one to ten chlorine substitutions. PCBs are used
heat-transfer agents and as electric insulators that block the flow of electric
current across in electrical equipments. They are known as environmental
pollution materials which are accumulated in animal tissues and cause toxic
effects including carcinogenesis. Biphenyl is used as an intermediate for the
production of a wide range of organic compounds (e.g. emulsifiers, optical
brighteners, crop protection products, plastics), as a heat transfer medium
alone or with diphenyl ether in heating fluids, as a dyestuff carrier for
textiles and copying paper and as a solvent in pharmaceutical production. Aminodiphenyls
are used as rubber
antioxidants and intermediates for the synthesis of
organic compounds ( azo dyes and pharmaceuticals). Biphenyl derivatives
are used as an intermediate for the synthesis of organic
compounds including pharmaceuticals, antifungal agents,
optical
brightening agents and dyes.
Biphenyl compounds also used in luminescence
chemistry, spectrophotometric analysis, molecular
chemistry, and as a stating material
for organometallic-complexes. |
| SALES
SPECIFICATION |
|
APPEARANCE
|
white
to purple crystals
|
| CONTENT |
98.0%
min
|
INDIVIDUAL
IMPURITY |
1.5%
max |
| TRANSPORTATION |
| PACKING |
25kgs
in drum |
| HAZARD
CLASS |
9
(Packing Group: III) |
| UN
NO. |
3077 |
| OTHER
INFORMATION |
|
Hazard Symbols: XN, Risk Phrases: 22-40-52/53, Safety
Phrases: 36/37-61 |
|
GENERAL
DESCRIPTION
OF BIPHENYL
|
|
Biphenyl (also called Diphenyl, but exactly one of two compounds. The other is o-phenylphenol, used to prevent the growth of moulds ) is an aromatic hydrocarbon, used as a raw material for chlorinated diphenyls(PCB) and
as an intermediate for the production of a wide range of organic compounds (e.g. emulsifiers, optical brighteners, crop protection products, plastics), as a heat transfer medium alone or with diphenyl ether in heating fluids, as a dyestuff carrier for textiles and copying paper, as a solvent in pharmaceutical production, and in the preservation of citrus fruits where it acts as a fungicide .
Pure biphenyl is a colourless crystalline solid with a pleasant odour; melting point 70
C, and boiling point 255 C, which gives plates or monoclinic prismatic crystals; it is insoluble in water but soluble in ordinary organic solvents.
|