2,3-dimethylphenol

Synonym(s):3-Hydroxyl-o-xylene;vic.-o-Xylenol

CAS NO.：526-75-0
Empirical Formula: C8H10O
Molecular Weight: 122.16
MDL number: MFCD00002227
EINECS: 208-395-3
SAFETY DATA SHEET (SDS)
Update Date: 2024-12-18 14:07:02

What is 2,3-dimethylphenol?

Chemical properties

brown crystalline solid. Slightly soluble in water, soluble in most organic solvents and alkali solutions.

The Uses of 2,3-dimethylphenol

2,3-Dimethylphenol is used for organic synthesis. It is used as the hardener to produce industrial furane, the raw material of producing xylenol specialized product and the assistant of the main raw material of detergent.

Preparation

2,3-Dimethylphenol is obtained by diazotization and hydrolysis of 2,3-xylidine.

General Description

2,3-dimethylphenol appears as colorless crystalline solid or brown chunky solid. Taste threshold concentration 0.03 mg/L. Odor threshold concentration 0.5 mg/L. (NTP, 1992)

Air & Water Reactions

Hygroscopic. Insoluble in water.

Reactivity Profile

Solutions of 1-Hydroxy-2,3-dimethylbenzene in water, DMSO, 95% ethanol or acetone should be stable for 24 hours under normal lab conditions. 1-Hydroxy-2,3-dimethylbenzene is incompatible with bases, acid chlorides, acid anhydrides, and oxidizing agents. 1-Hydroxy-2,3-dimethylbenzene corrodes steel, brass, copper, and copper alloys.

Fire Hazard

Flash point data for 1-Hydroxy-2,3-dimethylbenzene are not available. 1-Hydroxy-2,3-dimethylbenzene is probably combustible.

Flammability and Explosibility

Non flammable

Safety Profile

Poison bj 7 intravenous . route. When heated to decomposition it emits acrid smoke and irritating fumes. See also other xylenol entries.

Purification Methods

Crystallise 2,3-xylenol from aqueous EtOH. [Beilstein 6 IV 3096.]

Properties of 2,3-dimethylphenol

Melting point:	70-73 °C(lit.)
Boiling point:	217 °C(lit.)
Density	1.02~1.03
vapor density	4.23 (vs air)
vapor pressure	59.995kPa at 25℃
refractive index	1.5420
Flash point:	95 °C
storage temp.	room temp
solubility	Chloroform (Sparingly), Methanol (Slightly)
form	powder to crystal
pka	pK1:10.50 (25°C)
color	White to Orange to Green
Odor	at 10.00 % in dipropylene glycol. phenolic chemical musty
Water Solubility	slightly soluble
Merck	14,10082
BRN	1906267
Exposure limits	ACGIH: TWA 1 ppm
CAS DataBase Reference	526-75-0(CAS DataBase Reference)
NIST Chemistry Reference	Phenol, 2,3-dimethyl-(526-75-0)
EPA Substance Registry System	2,3-Dimethylphenol (526-75-0)

Safety information for 2,3-dimethylphenol

Signal word	Danger
Pictogram(s)	Corrosion Corrosives GHS05 Skull and Crossbones Acute Toxicity GHS06 Environment GHS09
GHS Hazard Statements	H314:Skin corrosion/irritation H411:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes	P260:Do not breathe dust/fume/gas/mist/vapours/spray. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.