ChemicalBook >> CAS DataBase List >>2,5-Dichlorobenzoic acid

2,5-Dichlorobenzoic acid

CAS No.
50-79-3
Chemical Name:
2,5-Dichlorobenzoic acid
Synonyms
Benzoic acid, 2,5-dichloro-;2,5-DBA;2,5-Dichlorobe;RARECHEM AL BO 0355;2,5-Dichlorobenzoic a;5-Dichlorobenzoic acid;Irsogladine Impurity S;Irsogladine Impurity 2;2,5-dichloro-benzoicaci;2,5-DICHLOROBENZOIC ACID
CBNumber:
CB7121450
Molecular Formula:
C7H4Cl2O2
Molecular Weight:
191.01
MDL Number:
MFCD00002416
MOL File:
50-79-3.mol
MSDS File:
SDS
Last updated:2023-04-27 16:27:43

2,5-Dichlorobenzoic acid Properties

Melting point 151-154 °C (lit.)
Boiling point 301 °C (lit.)
Density 1.4410 (rough estimate)
refractive index 1.4590 (estimate)
Flash point 300-302°C
storage temp. Store below +30°C.
solubility 0.8g/l
form Powder
pka 2.51±0.25(Predicted)
color White to beige
Water Solubility <0.1 g/100 mL at 19 ºC
BRN 973353
Stability Stable.
CAS DataBase Reference 50-79-3(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII KP7CMR0GSD
NIST Chemistry Reference Benzoic acid, 2,5-dichloro-(50-79-3)
EPA Substance Registry System Benzoic acid, 2,5-dichloro- (50-79-3)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P264-P271-P280-P302+P352-P305+P351+P338
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36-24/25
WGK Germany  3
RTECS  DG6825000
TSCA  Yes
HS Code  29163900
NFPA 704
0
2 0

2,5-Dichlorobenzoic acid price More Price(37)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 144940 2,5-Dichlorobenzoic acid 97% 50-79-3 50g $64.2 2024-03-01 Buy
Sigma-Aldrich 144940 2,5-Dichlorobenzoic acid 97% 50-79-3 250g $194.4 2024-03-01 Buy
TCI Chemical D0338 2,5-Dichlorobenzoic Acid >98.0%(GC)(T) 50-79-3 25g $35 2024-03-01 Buy
TCI Chemical D0338 2,5-Dichlorobenzoic Acid >98.0%(GC)(T) 50-79-3 100g $84 2024-03-01 Buy
TRC D436568 2,5-Dichlorobenzoic acid 50-79-3 1g $55 2021-12-16 Buy
Product number Packaging Price Buy
144940 50g $64.2 Buy
144940 250g $194.4 Buy
D0338 25g $35 Buy
D0338 100g $84 Buy
D436568 1g $55 Buy

2,5-Dichlorobenzoic acid Chemical Properties,Uses,Production

Chemical Properties

Needle crystals or white crystalline powder. Soluble in ethanol and ether, soluble in hot water. Some volatilize in the vapor.

Uses

2,5-Dichlorobenzoic acid was used as calibration standard to investigate the gas-phase OH reaction products of biphenyl, monochlorobiphenyl and dichlorophenyl

Application

2,5-Dichlorobenzoic acid is used in organic synthesis and pesticide intermediates. It is used to synthesize herbicides chloramben, 2,5-Dichloro-3-nitrobenzoic acid, etc. The pesticide has less phytotoxicity and is not affected by rainy days.

Preparation

2,5-Dichlorobenzoic acid is obtained by reacting p-dichlorobenzene with phosgene to obtain 2,5-dichlorobenzoyl chloride, which is then hydrolyzed.

Definition

ChEBI: 2,5-dichlorobenzoic acid is a chlorobenzoic acid that is benzoic acid in which the ring hydrogens at positions 2 and 5 are substituted by chloro groups. It is a chlorobenzoic acid and a dichlorobenzene.

General Description

Needles (from water) or white powder.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

Carboxylic acids donate hydrogen ions if a base is present to accept them. They react in this way with all bases, both organic (for example, the amines) and inorganic. Their reactions with bases, called "neutralizations", are accompanied by the evolution of substantial amounts of heat. Neutralization between an acid and a base produces water plus a salt. Carboxylic acids with six or fewer carbon atoms are freely or moderately soluble in water; those with more than six carbons are slightly soluble in water. Soluble carboxylic acid dissociate to an extent in water to yield hydrogen ions. The pH of solutions of carboxylic acids is therefore less than 7.0. Many insoluble carboxylic acids react rapidly with aqueous solutions containing a chemical base and dissolve as the neutralization generates a soluble salt. Carboxylic acids in aqueous solution and liquid or molten carboxylic acids can react with active metals to form gaseous hydrogen and a metal salt. Such reactions occur in principle for solid carboxylic acids as well, but are slow if the solid acid remains dry. Even "insoluble" carboxylic acids may absorb enough water from the air and dissolve sufficiently in 2,5-Dichlorobenzoic acid to corrode or dissolve iron, steel, and aluminum parts and containers. Carboxylic acids, like other acids, react with cyanide salts to generate gaseous hydrogen cyanide. The reaction is slower for dry, solid carboxylic acids. Insoluble carboxylic acids react with solutions of cyanides to cause the release of gaseous hydrogen cyanide. Flammable and/or toxic gases and heat are generated by the reaction of carboxylic acids with diazo compounds, dithiocarbamates, isocyanates, mercaptans, nitrides, and sulfides. Carboxylic acids, especially in aqueous solution, also react with sulfites, nitrites, thiosulfates (to give H2S and SO3), dithionites (SO2), to generate flammable and/or toxic gases and heat. Their reaction with carbonates and bicarbonates generates a harmless gas (carbon dioxide) but still heat. Like other organic compounds, carboxylic acids can be oxidized by strong oxidizing agents and reduced by strong reducing agents. These reactions generate heat. A wide variety of products is possible. Like other acids, carboxylic acids may initiate polymerization reactions; like other acids, they often catalyze (increase the rate of) chemical reactions.

Fire Hazard

Flash point data for 2,5-Dichlorobenzoic acid are not available; however, 2,5-Dichlorobenzoic acid is probably combustible.

Purification Methods

Crystallise the acid from water. [Beilstein 9 IV 1005.] Aromatic acid impurities (to <0.05%) can be removed via the (±)--methylbenzylamine salt as described for 2,4-dichlorobenzoic acid [Ley & Yates Organic Process Research & Development 12 120 2008.]

3032-32-4
50-79-3
Synthesis of 2,5-Dichlorobenzoic acid from 2-AMINO-3,6-DICHLOROBENZOIC ACID
Global( 397)Suppliers
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Speranza Chemical Co., Ltd.
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View Lastest Price from 2,5-Dichlorobenzoic acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2,5-Dichlorobenzoic acid pictures 2024-03-28 2,5-Dichlorobenzoic acid
50-79-3
US $30.00 / KG 1KG 99% 300MT/year Speranza Chemical Co., Ltd.
2,5-Dichlorobenzoic acid pictures 2023-02-02 2,5-Dichlorobenzoic acid
50-79-3
US $45.00 / kg 1kg 99% 5000 tons Hebei Duling International Trade Co. LTD
2,5-Dichlorobenzoic acid pictures 2022-09-16 2,5-Dichlorobenzoic acid
50-79-3
US $0.00-0.00 / kg 1kg 98% 1Ton Henan Aochuang Chemical Co.,Ltd.
2,5-DICHLOROBENZOIC ACID RARECHEM AL BO 0355 2,5-dichloro-benzoicaci 1,2-DICHLOROBENZENE PESTANAL 2,5-Dichlorobenzoic acid, 98+% 2,5-Dichlorobe 2,5-Dichlorobenzoic acid ,99% 2,5-Dichlorobenzoic acid,97% 2,5-DBA Benzoic acid,2,5-dichloro-(8CI,9CI) 5-Dichlorobenzoic acid 3-fluoro-4-nitrobenzoic acide Irsogladine Impurity S 2,5-Dichlorobenzoic a Irsogladine Impurity 2 2,5-Dichlorobenzoic Acid > Benzoic acid, 2,5-dichloro- 50-79-3 Cl2C6H3CO2H C7H4Cl2O2 Cl2C6H3COOH Carboxylic Acids Carbonyl Compounds C7 Building Blocks ARYL ACID Organic Building Blocks C7 Carbonyl Compounds Carboxylic Acids DAlphabetic Alpha sort D DIA - DIC Aromatic Carboxylic Acids, Amides, Anilides, Anhydrides & Salts intermediate Pesticides&Metabolites Phenylacetic acid Organic acids Acids & Esters Chlorine Compounds bc0001