2,4-Dichloro-3,5-dimethylphenol

CAS NO.：133-53-9
Empirical Formula: C8H8Cl2O
Molecular Weight: 191.05
MDL number: MFCD00019981
EINECS: 205-109-9
SAFETY DATA SHEET (SDS)
Update Date: 2024-05-09 17:53:44

What is 2,4-Dichloro-3,5-dimethylphenol?

Description

2, 4-Dichloro-3, 5-Xylenol (DCMX), is a white to light yellow flake. DCMX is a secure and efficient antiseptic. It’s slightly soluble in water (20oC, 0.2g/L), very soluble in organic solvents such as alcohol, ether, ketone, etc., and dissolves in solutions of alkali hydroxides. It’s frequently used in industry fields such as personal care products such as hand-cleaning detergent, soap, dandruff control shampoo, and healthy products, such as film, glue water, oiled, textile, paper making, etc.

Chemical properties

light beige powder

The Uses of 2,4-Dichloro-3,5-dimethylphenol

2,4-Dichloro-3,5-dimethylphenol is used as a preservative in aqueous functional fluids and as a microbicide in disinfectants, but in comparison with PCMX (38) is of lesser importance because it has a more intense smell and is less soluble in water.

The Uses of 2,4-Dichloro-3,5-dimethylphenol

Bacteriostat in soaps; mold inhibitor, preservative.

Preparation

2,4-Dichloro-3,5-dimethylphenol is obtained by reaction of 4-chloro-3,5-dimethylphenol with N-chloroacetamide in glacial acetic acid with concentrated HCl.

Production Methods

2,4-Dichloro-3,5-dimethylphenol is obtained by reaction of 4-chloro-3,5-dimethylphenol with N-chloroacetamide in glacial acetic acid with concentrated HCl. It is used as a preservative in aqueous functional fluids and as a microbicide in disinfectants, but in comparison with 4-Chloro-3,5-Dimethylphenol is of lesser importance because it has a more intense smell and is less soluble in water.

Solubility in organics

2,4-Dichloro-3,5-dimethylphenol is soluble in alkali solutions, and readily soluble in organic solvents.

Solubility in water

It has a solubility in water of 0.2 g/L at 20 °C.

Properties and Applications

TEST ITEMS	SPECIFICATION
APPEARANCE	WHITE TO OFF WHITE POWDER OR BLOCK MASS POWDER
ODOUR	PHENOLIC CHARACTERISTIC ODOUR
CONTENT OF ACTIVE MATTER	98.0% min
MELT RANGE	92-95 ° C
BOILING POINT	269 ° C
SOLUBILITY 20 ° C/WATER	0.2g/L
DRY LOSS	0.10% max
IRON	80 ppm max
RESIDUE ON IGNITION	0.5% max
WATER	0.5% max
TOTAL HEAVY METAL	0.001% max
SOLUBILITY	CLEAR SOLUTION

Properties of 2,4-Dichloro-3,5-dimethylphenol

Melting point:	91-96 °C
Boiling point:	273.74°C (rough estimate)
Density	1.2559 (rough estimate)
refractive index	1.5605 (estimate)
Flash point:	138°C
form	powder to crystal
pka	8.30±0.28(Predicted)
color	White to Light yellow to Light red
Merck	14,3076
BRN	2209273
InChI	InChI=1S/C8H8Cl2O/c1-4-3-6(11)8(10)5(2)7(4)9/h3,11H,1-2H3
CAS DataBase Reference	133-53-9(CAS DataBase Reference)
EPA Substance Registry System	2,4-Dichloro-3,5-dimethylphenol (133-53-9)

Safety information for 2,4-Dichloro-3,5-dimethylphenol

Signal word	Danger
Pictogram(s)	Corrosion Corrosives GHS05 Skull and Crossbones Acute Toxicity GHS06
GHS Hazard Statements	H301:Acute toxicity,oral H314:Skin corrosion/irritation H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P260:Do not breathe dust/fume/gas/mist/vapours/spray. P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405:Store locked up. P501:Dispose of contents/container to..…