TERPIN MONOHYDRATE Chemical Properties

Melting point:

116-117°C

Boiling point:

bp 258°

storage temp. 

Sealed in dry,Room Temperature

solubility 

DMSO (Slightly), Methanol (Slightly)

form 

Solid

color 

White to Off-White

Water Solubility 

3.42g/L(25 ºC)

Merck 

14,9169

CAS DataBase Reference

2451-01-6(CAS DataBase Reference)

Safety Information

Risk Statements 

36/37/38

Safety Statements 

26-36/37/39

RIDADR 

UN 3265 8 / PGII

WGK Germany 

3

TSCA 

Yes

HS Code 

2906195000

MSDS

• Language:English Provider:ALFA

TERPIN MONOHYDRATE Usage And Synthesis

Chemical Properties

Colorless, lustrous, rhombic, crystalline prisms or white powder; slight characteristic odor; slightly bitter taste. Efflorescent. Soluble in alcohol and ether; slightly soluble in water. Combustible.

Uses

Used in screening of essential oil from Artemisia scoparia leaves for free radical scavenging activity

Uses

Pharmaceuticals, source of terpineol, medicine (expectorant).

Synthesis

Terpin monohydrate is prepared from alpha-Pinene or Turpentine oil by treatment with dilute sulfuric acid. It has also been manufactured in the U.S.A. from Pine Oil by acid treatment.

Purification Methods

Crystallise terpin from H2O or EtOH. The anhydrous cis-isomer distils at 258o/760mm but hydrates on exposure to moist air. Anhydrous terpin is also obtained by recrystallisation from absolute EtOH. [Sword J Chem Soc 127 1632 1925, Lombard & Ambrose Bull Soc Chim Fr 230 1961, Beilstein 5 IV 435.]

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