ChemicalBook > CAS DataBase List > 2,4,5-Trichlorophenol

2,4,5-Trichlorophenol

Product Name
2,4,5-Trichlorophenol
CAS No.
95-95-4
Chemical Name
2,4,5-Trichlorophenol
Synonyms
Phenol, 2,4,5-trichloro-;Nurelle;Dowcide;Dowcide 2;2,4,5-tcp;NCI-C61187;preventoli;COLLUNOSOL;DOWICIDE 2;Preventol I
CBNumber
CB3714348
Molecular Formula
C6H3Cl3O
Formula Weight
197.45
MOL File
95-95-4.mol
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2,4,5-Trichlorophenol Property

Melting point:
64-67 °C 67-69 °C (lit.)
Boiling point:
248 °C/740 mmHg (lit.)
Density 
1,678 g/cm3
vapor pressure 
3.5 at 8 °C, 22 at 25 °C (quoted, Leuenberger et al., 1985a)
refractive index 
1.5300 (estimate)
Flash point:
253°C
storage temp. 
2-8°C
solubility 
Soluble in ethanol and ligroin (U.S. EPA, 1985)
pka
pK1:7.37 (25°C)
form 
Powder
color 
Colorless needles or gray flakes from pet ether
Odor
strong phenolic odor
Water Solubility 
947.8mg/L(25 ºC)
Merck 
14,9643
BRN 
607569
Henry's Law Constant
1.76 at 25 °C (estimated, Leuenberger et al., 1985a)
Stability:
Stable. Note that this material creates dioxin in alkaline media at elevated temperatures.
CAS DataBase Reference
95-95-4(CAS DataBase Reference)
NIST Chemistry Reference
Phenol, 2,4,5-trichloro-(95-95-4)
EPA Substance Registry System
2,4,5-Trichlorophenol (95-95-4)
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Safety

Hazard Codes 
Xn,N,Xi,T,F
Risk Statements 
22-36/38-50/53-52/53-39/23/24/25-23/24/25-11-51/53
Safety Statements 
26-28-60-61-28A-45-36/37-16
RIDADR 
UN 3077 9/PG 3
WGK Germany 
3
RTECS 
SN1400000
TSCA 
Yes
HazardClass 
6.1
PackingGroup 
III
HS Code 
29081990
Hazardous Substances Data
95-95-4(Hazardous Substances Data)
Toxicity
Acute oral LD50 for guinea pigs 1,000 mg/kg, mice 600 mg/kg, rats 820 mg/kg (quoted, RTECS, 1985).
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P273Avoid release to the environment.

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.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
91332
Product name
2,4,5-Trichlorophenol
Purity
purum, ≥95.0% (GC)
Packaging
50g
Price
$41.6
Updated
2024/03/01
Sigma-Aldrich
Product number
156515
Product name
2,4,5-Trichlorophenol
Purity
95%
Packaging
25g
Price
$71.6
Updated
2024/03/01
Sigma-Aldrich
Product number
156515
Product name
2,4,5-Trichlorophenol
Purity
95%
Packaging
100g
Price
$104.4
Updated
2024/03/01
TCI Chemical
Product number
T0389
Product name
2,4,5-Trichlorophenol
Purity
>95.0%(GC)
Packaging
25g
Price
$42
Updated
2024/03/01
TCI Chemical
Product number
T0389
Product name
2,4,5-Trichlorophenol
Purity
>95.0%(GC)
Packaging
500g
Price
$370
Updated
2024/03/01
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2,4,5-Trichlorophenol Chemical Properties,Usage,Production

Chemical Properties

White to pale brown solid in appearance; 2,4,5-Trichlorophenol also looks like small needles. It has a really strong odor that smells like phenol (a poisonous crystal-looking compound). This man-made substance is not found naturally in the environment.

Physical properties

Colorless crystals or yellow to gray flakes with a strong, disinfectant or phenolic odor. At 40 °C, the average odor threshold concentration and the lowest concentration at which an odor were detected were 350 and 63 μg/L, respectively. At 25 °C, the lowest concentration at which a taste was detected was 100 μg/L (Young et al., 1996).

Uses

2,4,5-Trichlorophenol is used as a broad range pesticide against insects, fungi, vegetation and bacteria. It has become a common environmental contaminant and probable human carcinogen.

Definition

ChEBI: 2,4,5-trichlorophenol is a trichlorophenol carrying chloro groups at positions 2, 4 and 5.

Preparation

2,4,5-Trichlorophenol is prepared indirectly, by the alkaline hydrolysis of 1,2,4,5-tetrachlorobenzene,because the direct chlorination of 2,5-dichlorophenol, difficult to achieve, proceeds with poor yield.

General Description

Colorless needles, gray flakes or off-white lumpy solid. Phenolic odor. Formerly used as a fungicide and bactericide.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

2,4,5-Trichlorophenol is a weak monobasic acid. Incompatible with acid chlorides, acid anhydrides and oxidizing agents. Produces dioxin in alkaline medium at high temperatures

Health Hazard

If your skin comes into contact with 2,4,5-trichlorophenol, it may burn the skin and produce redness and edema in humans. It also irritates the eyes, nose, pharynx, and lungs in humans.
Tests involving acute exposure of rats, mice, and guinea pigs have demonstrated 2,4,5-trichlorophenol to havemoderateacute toxicity by oral exposure.

Fire Hazard

Literature sources indicate that 2,4,5-Trichlorophenol is nonflammable.

Safety Profile

Suspected carcinogen with experimental neoplastigenic data. Poison by intraperitoneal and intravenous routes. Moderately toxic by ingestion and subcutaneous routes. Experimental reproductive effects. Mutation data reported. When heated to decomposition it emits toxic fumes of Cland explodes. See also CHLOROPHENOLS.

Environmental Fate

Biological. Chloroperoxidase, a fungal enzyme isolated from Caldariomyces fumago, chlorinated 2,4,5-trichlorophenol to give 2,3,4,6-tetrachlorophenol (Wannstedt et al., 1990).
Photolytic. When 2,4,5-trichlorophenol (100 μM) in an oxygenated, titanium dioxide (2 g/L) suspension was irradiated by sunlight (λ ≥340 nm), complete mineralization to carbon dioxide and water and chloride ions was observed (Barbeni et al., 1987a).
The following phototransformation half-lives were reported for 2,4,5-trichlorophenol in estuarine water exposed to sunlight and microbes: 1 h during winter; in distilled water: 0.6 and 1 h during summer and winter, respectively; in poisoned estuarine water: 14 and 24 h during summer and winter, respectively (Hwang et al., 1986).
A photooxidation rate constant of <3,000/M·sec was reported for the reaction of 2,4,5- trichlorophenol and ozone in water at a pH range of 1.2 to 1.5 (Hoigné and Bader, 1983). Chemical/Physical. 2,4,5-Trichlorophenol will not hydrolyze because it does not contain a hydrolyzable functional group (Kollig, 1993).
During the manufacture/synthesis of 2,4,5-T using alkalies at high temperatures, some TCDD may form (Worthing and Hance, 1991).

Purification Methods

Crystallise the phenol from EtOH or pet ether. [Beilstein 6 IV 962.]

2,4,5-Trichlorophenol Preparation Products And Raw materials

Raw materials

Sodium dithionite 1,2,3,5-Tetrachlorobenzene Toluene Sodium tetraborate 1,2,4,5-Tetrachlorobenzene Sodium hydroxide Propylene glycol Sulfuric acid

Preparation Products

FENCHLORPHOS HALOPROGIN 2,4,5-Trichlorophenyl-propynyl ether Hexachlorophene
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View Lastest Price from 2,4,5-Trichlorophenol manufacturers

Qingdao RENAS Polymer Material Co., Ltd.
Product
2,4,5-Trichlorophenol 95-95-4
Price
US $0.00/kg
Min. Order
20kg
Purity
99%
Supply Ability
20 tons
Release date
2024-09-24
Career Henan Chemical Co
Product
2,4,5-trichlorophenol 95-95-4
Price
US $1.00/g
Min. Order
1g
Purity
95-99%
Supply Ability
1ton
Release date
2020-01-14

95-95-4, 2,4,5-TrichlorophenolRelated Search:

Trichloroacetic acid PHENOLDISULFONIC ACID Sucralose Trichloroethylene Trichlorosilane 2,4-Dichlorophenol 1,3,5-Trichlorobenzene Trichloroisocyanuric acid Chloroform Pentachlorophenol 2,3,4,6-TETRACHLOROPHENOL 2,4,6-trichlorophenol solution,1,3,5-Trichlorophenol 2-(2,4,5-TRICHLOROPHENOXY)PROPIONIC ACID Pentachlorophenol sodium salt hydrate 2,3,4,5-TETRACHLOROANISOLE Bis[3,4,6-trichlorophenol], 2,2'-methylene-,2,2'-METHYLENEBIS(3,4,6-TRICHLOROPHENOL),2,2'-Methylenebis(3,5,6-trichlorophenol) 2,4,5-Trichlorophenoxyacetic acid TETRACHLOROCATECHOL

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