2-Nonenal Property

Melting point:

-28°C (estimate)

Boiling point:

88-90 °C12 mm Hg(lit.)

Density 

0.846 g/mL at 25 °C(lit.)

vapor density 

>1 (vs air)

refractive index 

n20/D 1.453(lit.)

FEMA 

3213 | 2-NONENAL

Flash point:

184 °F

color 

White to sltly yellow liquid

Odor

fatty, violet odor

Odor Type

fatty

JECFA Number

1362

LogP

3.17

CAS DataBase Reference

2463-53-8(CAS DataBase Reference)

NIST Chemistry Reference

2-Nonenal(2463-53-8)

EPA Substance Registry System

2-Nonenal (2463-53-8)

Safety

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-36/37/39

WGK Germany 

3

RTECS 

RA8509050

Toxicity

LD50 orl-rat: 5 g/kg FCTOD7 20(Suppl),775,825 g/kg FCTOD7 20,775,82

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

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

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P271Use only outdoors or in a well-ventilated area.

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

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

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

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

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

P330Rinse mouth.

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

P337+P313IF eye irritation persists: Get medical advice/attention.

P362Take off contaminated clothing and wash before reuse.

P403+P233Store in a well-ventilated place. Keep container tightly closed.

P405Store locked up.

P501Dispose of contents/container to..…

2-Nonenal Chemical Properties,Usage,Production

Description

2-Nonenal has a very powerful, penetrating fatty odor in concentrated form. It is orris-like, waxy, and quite pleasant on dilution. The odor is reminiscent of dried orange peels. Prepared by oxidation of 9,10,12-trihydroxy stearic acid (Criegee reaction).

Chemical Properties

2-Nonenal has a very powerful, penetrating, fatty odor in concentrated form. The odor is orris-like, waxy and quite pleasant on dilution. The odor is also reported as reminiscent of dried orange peels

Occurrence

Reported found in orris oil, melon, peach, asparagus, carrot, peas, tomato, wheat and crisp breads, Russian cheeses, caviar, butter, fish oil, cooked beef, mutton, pork, and their fats, hop oil, cognac, roasted filberts and peanuts, soybean, beans, sesame seed, mango, rice, beer, and potato chips

Uses

The concentration in a perfume oil may be of the order of magnitude of 0.01 to 0.03%. An addition of 0.02% of 2-Nonenal to a normal grade of "gamma" -Methylionone will produce a distinctly ("orrisy") perceptible effect, desirable and attractive in the opinion of many perfumers.

Definition

ChEBI: An enal consisting of non-2-ene having an oxo group at the 1-position.

Preparation

By oxidation of 9,10,12-trihydroxystearic acid (Criegee reaction)

Aroma threshold values

Detection: 0.1 ppb

Taste threshold values

Taste characteristics at 10 ppm: green, soapy, cucumber/melon-like with an aldehydic, fatty nuance

Safety Profile

Moderately toxic by skin contact. Mddly toxic by ingestion. A severe skin irritant. Mutation data reported. When heated to decomposition it emits acrid smoke and irritating fumes. See also ALDEHYDES.