2,5-Dichlorobenzoic acid
- Product Name
- 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;Irsogladine Impurity 2;Irsogladine Impurity S;5-Dichlorobenzoic acid;2,5-dichloro-benzoicaci;2,5-DICHLOROBENZOIC ACID
- CBNumber
- CB7121450
- Molecular Formula
- C7H4Cl2O2
- Formula Weight
- 191.01
- MOL File
- 50-79-3.mol
2,5-Dichlorobenzoic acid Property
- 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
- pka
- 2.51±0.25(Predicted)
- form
- Powder
- 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)
- NIST Chemistry Reference
- Benzoic acid, 2,5-dichloro-(50-79-3)
- EPA Substance Registry System
- Benzoic acid, 2,5-dichloro- (50-79-3)
Safety
- Hazard Codes
- Xi
- Risk Statements
- 36/37/38
- Safety Statements
- 26-36-24/25
- WGK Germany
- 3
- RTECS
- DG6825000
- TSCA
- Yes
- HS Code
- 29163900
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
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.
N-Bromosuccinimide Price
- Product number
- 144940
- Product name
- 2,5-Dichlorobenzoic acid
- Purity
- 97%
- Packaging
- 50g
- Price
- $64.2
- Updated
- 2024/03/01
- Product number
- 144940
- Product name
- 2,5-Dichlorobenzoic acid
- Purity
- 97%
- Packaging
- 250g
- Price
- $194.4
- Updated
- 2024/03/01
- Product number
- D0338
- Product name
- 2,5-Dichlorobenzoic Acid
- Purity
- >98.0%(GC)(T)
- Packaging
- 25g
- Price
- $35
- Updated
- 2024/03/01
- Product number
- D0338
- Product name
- 2,5-Dichlorobenzoic Acid
- Purity
- >98.0%(GC)(T)
- Packaging
- 100g
- Price
- $84
- Updated
- 2024/03/01
- Product number
- D436568
- Product name
- 2,5-Dichlorobenzoic acid
- Packaging
- 1g
- Price
- $55
- Updated
- 2021/12/16
2,5-Dichlorobenzoic acid Chemical Properties,Usage,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.]
2,5-Dichlorobenzoic acid Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 2,5-Dichlorobenzoic acid manufacturers
- Product
- 2,5-Dichlorobenzoic acid 50-79-3
- Price
- US $30.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 300MT/year
- Release date
- 2019-12-24
- Product
- 2,5-Dichlorobenzoic acid 50-79-3
- Price
- US $45.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 5000 tons
- Release date
- 2023-02-01
- Product
- 2,5-Dichlorobenzoic acid 50-79-3
- Price
- US $15.00-10.00/KG
- Min. Order
- 1KG
- Purity
- 99%+ HPLC
- Supply Ability
- Monthly supply of 1 ton
- Release date
- 2021-07-11