| CAS
NO. |
104-55-2 |
|
| EINECS
NO. |
203-213-9 |
| FORMULA |
C6H5CH=CHCHO |
| MOL
WT. |
132.16 |
|
H.S.
CODE
|
2912.29 |
|
TOXICITY
|
Oral
rat LD50: 2220 mg/Kg |
| SYNONYMS |
3-phenyl-2-Propenal;
Cinnamal; |
| Cinnamic
aldehyde; cassia aldehyde; 3-phenylpropenal;
Phenylacrolein; cinnamyl aldehyde; 3-phenylacrolein;
benzylideneacetaldehyde; Aldehido Cinamico;
3-phenyl-2-propenaldehyde; zimtaldehyde;
3-phenylacrylaldehyde; Phenyl-2-propenal;
3-Phenyl-2-propen-1-al; |
| DERIVATION |
|
|
CLASSIFICATION
|
|
|
PHYSICAL
AND CHEMICAL PROPERTIES
|
| PHYSICAL
STATE |
Yellow
oily liquid |
|
MELTING
POINT
|
-7.5
C |
| BOILING
POINT |
248
- 251 C |
| SPECIFIC
GRAVITY |
1.05 |
|
SOLUBILITY
IN WATER
|
Slightly
soluble |
| pH |
|
| VAPOR
DENSITY |
4.5 |
|
AUTOIGNITION
|
|
|
REFRACTIVE
INDEX
|
1.6210 |
| NFPA
RATINGS |
Health:
1 Flammability: 2 Reactivity: 1 |
| FLASH
POINT |
71
C
|
| STABILITY |
Stable
under ordinary conditions |
|
GENERAL
DESCRIPTION & APPLICATIONS
|
| Cinnamic aldehyde is a oily yellow liquid with strong odor of cinnamon. This
compound is the main component of cinnamon oil, a volatile oil used as a
flavoring agent for pharmaceuticals. Cinnamaldehyde is obtained from the
distillation with steam from the leaves and twigs of Cinnamomum. It can be
prepared from the synthesis from related compounds like cinnamyl alcohol and
from the condensation of benzaldehyde and acetaldehyde. Cinnamic aldehyde is a
benzene ring substituent acrylic aldehyde having carbon-carbon double bond.
The conjugated double bond makes geometry of the
compound planar. Though there are cis and trans isomers, cinnamic aldehyde
usually refers to the latter which the terminal carbonyl is on the opposite side
of the benzene ring over the rigid double bond.
The predominant
application for cinnamaldehyde is in the flavor and fragrance industries. It
is used as a flavouring for chewing gum, ice cream,
candy, and beverages. is used in some perfumes of natural, sweet, or fruity
scents. A variety of alkyl substituted cinnamaldehyde derivatives including
amyl and hexyl cinnamicaldehydes are also
widely used in flavouring additives. They imparts a cinnamon odor to soaps and household products.
Cinnamaldehyde is also used as a fungicide
or insecticide. Cinnamaldehyde is also used as a corrosion inhibitor in
combination with additional components such as dispersing agents, solvents and
other surfactants for steel and other ferrous alloys in corrosive fluids.
|
| SALES
SPECIFICATION |
|
APPEARANCE
|
Yellow
oily liquid |
| PURITY
(GLC) |
98.5%
min |
| ACIDITY |
5.0
max |
| SPECIFIC
GRAVITY |
1.045
min |
| TRANSPORTATION |
| PACKING |
200kgs
in drum |
| HAZARD
CLASS |
3
(Packing Group: I) |
| UN
NO. |
1993 |
| OTHER
INFORMATION |
FEMA No.:
2286
Hazard Symbols: XI, Risk Phrases: 41, Safety Phrases:
26-39 |
|
DESCRIPTION OF ALDEHYDE |
|
Aldehydes are
organic compounds containing -CHO radical, in which a carbon atom forms a double
bond with an oxygen atom and is also bonded to a hydrogen atom and another group
denoted by R, which can be a second hydrogen atom, an alkyl group, or an aryl
group. The most important and the simplest examples are methanal (formaldehyde),
HCOH, and ethanal (acetaldehyde), CH3CHO.( In systematic chemical
nomenclature, aldehyde names end with the suffix -al). Formaldehyde is used to
make synthetic resins by reaction with phenols, urea, and melamine, as a
chemical intermediate, as an embalming fluid, and as a disinfectant.
Acetaldehyde is used chiefly to manufacture acetic acid. They are
unpleasant-smelling liquids widely used in the chemical industry, whereas
aromatic aldehydes frequently have pleasant smells and are used widely as
flavourings and perfumes. An example is benzaldehyde (benzenecarbaldehyde,
C6H5CHO), a derivative of benzene with an aldehyde group
attached to the ring. It is a colourless oil smelling of almonds offer
applications to both in perfumes and flavourings. Aldehydes are formed by
oxidation of primary alcohols; further oxidation yields carboxylic acids.
Aldehydes have certain characteristic addition and condensation reactions.
Aldehydes can be reduced to primary alcohols (ketones to secondary alcohols).
Aldehydes form cyanohydrins with hydrogen cyanide, acetals with alcohol,
yellow-orange solid derivatives with DNP ( 2,4-dinitrophenylhydrazones) and
undergo condensation reactions to yield oximes (compounds containing the group
C:NOH), hydrazones (organic compounds containing the group =C:NNH2),
and semicarbazones (organic compounds containing the unsaturated group
=C:N.NH.CO.NH2). Aldehydes readily polymerize. |