PINANE

PRODUCT IDENTIFICATION

CAS NO.

473-55-2

PINANE

 

EINECS NO. 229-978-9
FORMULA C10H18
MOL WT. 138.25
H.S. CODE 2902.19
TOXICITY

 

SYNONYMS 2,6,6-trimethyl-, (1a,2b,5a)-Bicyclo[3.1.1]Heptane;
Dihydropinene; 2,7,7-trimethylbicyclo[3.1.1]heptane;
SMILES

hydrogenation of alpha-pinene

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE

Colorless to pale yellow liquid

MELTING POINT

 

BOILING POINT 168 - 169 C
SPECIFIC GRAVITY

0.857

SOLUBILITY IN WATER  

SOLVENT SOLUBILITY

 
pH  
VAPOR DENSITY  

AUTOIGNITION

 

NFPA RATINGS

Health: 1 Flammability: 1 Reactivity: 1

REFRACTIVE INDEX

1.4622

FLASH POINT

 

STABILITY Stable under ordinary conditions

GENERAL DESCRIPTION & APPLICATIONS

Turpentine is a semifluid substance consisting of two principal components, spirits of turpentine (volatile portion also known as oil of turpentine or turps ) and a type of rosin (nonvolatile portion also known as colophony). Turpentine is exuded from coniferous trees. The crude turpentine is distilled through steam into commercial turpentine, oil of turpentine. The pure turpentine oil is a transparent oily liquid with a penetrating odor and a characteristic taste. Turpentine is not a pure substance but a complex mixture of terpenes, particularly large proportion of pinene (bicyclic monoterpenic hydrocarbon), a compound from which camphor is manufactured. Terpene is a class of naturally occurring unsaturated hydrocarbons whose carbon skeletons are composed exclusively of isoprene C5 units (CH2=C(CH3)-CH=CH2), consisting of five carbon atoms attached to eight hydrogen atoms (C5H8). The stepwise distillation with water and carbonates yields terpenes. The most abundant monoterpene is pinene. There are two isomerers called alpha (or beta) pinene. The alpha form boils at 156-160 C, and of the beta form boils at 164-169C. It is used as solvents for paints, coatings and wax formulations. It is used as an intermediate for resins and for camphor, menthol, campholenic aldehyde and terpineol. It is used as lube-oil additives. Myrcene,one of  the most important chemicals used in the perfumery industry, is obtained from beta-Pinene through pyrolysis.

Pinane, hydrogenated alpha-pinene, is used as an intermediate for the production of terpene alcohols and other fragrance chemicals.

SALES SPECIFICATION

APPEARANCE

Colorless to pale yellow liquid

cis-PINANE

95.0% min

trans-PINANE

5.0% max

BOILING POINT

167 C min
TRANSPORTATION
PACKING 175kgs in drum
HAZARD CLASS 3 (Packing group: III)
UN NO. 2319

GENERAL DESCRIPTION OF TERPENE

A class of naturally occurring compounds mainly in plants as constituents of essential oils whose carbon skeletons are composed exclusively of isoprene C5 units (CH2=C(CH3)-CH=CH2). Most terpenes are hydrocarbons having molecular formula (C5H8)n in a cyclic or acyclic, saturated or unsaturated structure, while the terpenoids are oxygen-containing analogues of the terpenes such as alcohols, aldehydes or ketones containing hydroxyl groups or carbonyl groups. Several vitamines, hormones, flavour and flagrances and latex are terpenoids. Terpenes containing 30 or more carbons are usually formed by the fusion of two terpene precursors in a regular pattern, usually head-to-tail appears to be violated. They are differ from one another not only in functional groups but also in their basic carbon skeletons. Terpenes are employed mainly the fragrance and flavour purpose, as well as in the pharmaceutical and chemical industries. They are classified by the number of isoprene units:

Class

number of isoprene

Examples

Hemiterpene

1 (C5H8)

Found in associated with Alkaloids, Coumarins and Flavonoids.

Monoterpenes

2 (C10H16)

Geraniol, Citronellol, Pinene, Nerol, Citral, Camphor, Menthol, Limonene, Thujone

Sesquiterpenes

3 (C15H24)

Nerolidol, Farnesol

Diterpenes

4 (C20H32)

Phytol, Vitamin A1

Triterpenes

6 (C30H48)

Squalene

Tetraterpenes

8 (C40H84)

Carotene (Provitamin A1)

Polyterpenes

>10 (C5H8)n