4-Chlorophenol Property

Melting point:

42-45 °C

Boiling point:

220 °C (lit.)

Density 

1.306 g/mL at 25 °C (lit.)

vapor density 

4.43 (vs air)

vapor pressure 

1 mm Hg ( 49.8 °C)

refractive index 

1.5579

Flash point:

240 °F

storage temp. 

2-8°C

solubility 

ethanol: soluble50mg/mL, clear to very slightly hazy, colorless to faintly brownish-yellow

pka

9.18(at 25℃)

form 

Low Melting Crystalline Mass

color 

White to pale yellow

Odor

Phenolic

Odor Threshold

30 ppm

Water Solubility 

2.7 g/100 mL (20 ºC)

Sensitive 

Air Sensitive

Merck 

14,2154

BRN 

507004

Dielectric constant

9.5（54.0℃）

Stability:

Stable. Incompatible with acid chlorides, acid anhydrides, oxidizing agents, iron.

LogP

2.5 at 35℃

CAS DataBase Reference

106-48-9(CAS DataBase Reference)

NIST Chemistry Reference

p-Chlorophenol(106-48-9)

EPA Substance Registry System

p-Chlorophenol (106-48-9)

Safety

Hazard Codes 

Xn,N

Risk Statements 

20/21/22-51/53-50

Safety Statements 

28-61-28A-24/25-60-36/37

RIDADR 

UN 2020 6.1/PG 3

WGK Germany 

2

RTECS 

SK2800000

F 

10-23

TSCA 

Yes

HazardClass 

6.1

PackingGroup 

III

HS Code 

29081000

Hazardous Substances Data

106-48-9(Hazardous Substances Data)

Toxicity

LD50 orally in rats: 0.67 g/kg (Deichmann)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H314Causes severe skin burns and eye damage

H411Toxic to aquatic life with long lasting effects

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P273Avoid release to the environment.

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

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

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

4-Chlorophenol Chemical Properties,Usage,Production

Chemical Properties

off-white to light tan crystals or powder

Chemical Properties

All isomers have a characteristic odor.

Uses

It is used as main raw material of compounding for medicine, dye, plastic and other industries. 4-Chlorophenol was used in visible-light-induced degradation of 4-chlorophenol in aqueous suspension of pure TiO2.

Uses

antineoplastic

Uses

Biocide; disinfectant for home, hospital and farm.

Uses

Intermediates of Liquid Crystals

Definition

ChEBI: A monochlorophenol substituted at the pare position by a chlorine atom.

Synthesis Reference(s)

The Journal of Organic Chemistry, 50, p. 2145, 1985 DOI: 10.1021/jo00212a029
Tetrahedron Letters, 24, p. 3117, 1983 DOI: 10.1016/S0040-4039(00)88111-3

General Description

White crystals with a strong phenol odor Slightly soluble to soluble in water, depending on the isomer, and denser than water. Noncombustible. Used as an intermediate in organic synthesis of dyes and drugs.

Air & Water Reactions

Slightly soluble to soluble in water.

Reactivity Profile

CHLOROPHENOLS, SOLID are incompatible with acid chlorides, acid anhydrides and oxidizing agents. Also incompatible with iron . Liquefy and darken in color at temperatures above 108°F.

Hazard

Toxic by skin absorption, inhalation, or ingestion; strong irritant to tissue.

Health Hazard

Inhalation causes headache, dizziness, weak pulse. Ingestion causes irritation of mouth and stomach; headache, dizziness, weak pulse. Contact with eyes causes severe irritation and burning. Contact with skin causes irritation and burn; if absorbed, causes same symptoms as inhalation.

Fire Hazard

Special Hazards of Combustion Products: Toxic and irritating hydrogen chloride and chlorine gases may form in fires.

Flammability and Explosibility

Not classified

Safety Profile

Poison by inhalation and intraperitoneal routes. Moderately toxic by ingestion, skin contact, and subcutaneous routes. A severe skin and eye irritant. Human systemic effects by inhalation: excitement, irritability. Mutation data reported. Combustible when exposed to heat or flame. To fight fire, use water, spray, mist, fog, foam, dry chemical. When heated to decomposition it emits toxic fumes of Cl-. See also CHLOROPHENOLS and CHLORIDES.

Potential Exposure

Monochlorophenols are used in the manufacture of fungicides, slimicides, bactericides, pesticides, herbicides, disinfectants, wood and glue preservatives; in the production of phenolic resins; in the extraction of certain minerals from coal; as a denaturant for ethanol; as an antiseptic; as a disinfectant, and others.

Shipping

UN 2020 (solid); UN2021 (liquid) Chlorophenols, solid and liquid, Hazard Class: 6.1; Labels: 6.1-Poisonous materials.

Purification Methods

Distil the phenol, then crystallise it from pet ether (b 40-60o) or hexane, and dry it under vacuum over P2O5 at room temperature. [Bernasconi & Paschalis J Am Chem Soc 108 2969 1986, Beilstein 6 IV 820.]

Incompatibilities

May form explosive mixture with air. Contact with oxidizing agents can cause fire and explosion hazard. Heat produces hydrogen chloride and chlorine. Corrosive to aluminum, copper and other chemically active metals.

Waste Disposal

Incinerate in admixture with flammable solvent in furnace equipped with afterburner and scrubber.