BENZOIN Property

Melting point:

134-138 °C(lit.)

Boiling point:

194 °C12 mm Hg(lit.)

FEMA 

2133 | BENZOIN RESINOID

color 

An amber coloured resinoid with a characteristic balsamic odour. Both Siam and Sumatra benzoins contain vanillin and esters of benzoic and cinnamic acids

Odor

at 100.00 %. sweet spicy balsam aromatic resinous phenolic

Odor Type

balsamic

Merck 

13,4594

CAS DataBase Reference

9000-05-9(CAS DataBase Reference)

EPA Substance Registry System

Gum benzoin (9000-05-9)

Safety

Safety Statements 

24/25

WGK Germany 

2

RTECS 

DI1590000

Hazardous Substances Data

9000-05-9(Hazardous Substances Data)

Toxicity

The acute oral LD₅₀ was reported as 10 g/kg in the rat . The acute dermal LD₅₀ in the rabbit was reported as 8.87 g/kg

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H317May cause an allergic skin reaction

H319Causes serious eye irritation

H412Harmful to aquatic life with long lasting effects

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P272Contaminated work clothing should not be allowed out of the workplace.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P321Specific treatment (see … on this label).

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P333+P313IF SKIN irritation or rash occurs: Get medical advice/attention.

P362Take off contaminated clothing and wash before reuse.

P363Wash contaminated clothing before reuse.

P501Dispose of contents/container to..…

BENZOIN Chemical Properties,Usage,Production

Chemical Properties

Trees of this species are about 15 m tall. Resin flows from the incision made in the bark. S. tonkinensis (Siam benzoin) grows extensively in Laos and Tonkin. S. benzoin Dryand. (Sumatra benzoin) grows in Sumatra and Malaya. Sumatra benzoin is produced commercially in two basic qualities: selected tears and almonds or amygdaloid forms. The size of the tear-shaped pieces allows a further classification into three or four types. The amount of granules (almonds) as compared to the mass allows a classification into three basic qualities. The resins are the parts used. Benzoin has a sweet, balsamic, pleasant odor and an aromatic, acrid, bittersweet taste.

Chemical Properties

Reddish-brown globules; balsamic, vanilla-like odor. Brittle at room temperature but softened by heat. Soluble in warm alcohol and carbon disulfide; insoluble in water.

Physical properties

Sumatra benzoin consists of a grayish-red mass intermixed with yellow pieces somewhat resembling almonds.

Occurrence

Benzoin Siam is obtained from Styrax tonkinensis P. S. mycrothyrsus P. Benzoin Sumatra is derived from Styrax benzoin D. S. benzoides C.(Naves & Mazuyer, 1947).

Uses

Preserving ointments; preparing natural benzoic acid; for fumigating pastilles; in perfumery and cosmetics.

Preparation

The resinoid is obtained by extracting the natural benzoin with benzene and then distilling off the solvent(Naves & Mazuyer, 1947).

Definition

Extractives and their physically modified derivatives. It is a product which may contain resin acids and their esters, terpenes, and oxidation or polymerization products of these terpenes. (Styrax, Styracaceae).