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Dichloroacetic acid

CAS No.
79-43-6
Chemical Name:
Dichloroacetic acid
Synonyms
dichloro;dichloroacetic;2,2-Dichloroacetic acid;dca(acid);Aceticacid,dichloro-;DICHLOROACETICACID,REAGENT;DKhUK;urner’sliquid;Urner's liquid;oroacetic acid
CBNumber:
CB5671951
Molecular Formula:
C2H2Cl2O2
Lewis structure
c2h2cl2o2 lewis structure
Molecular Weight:
128.94
MDL Number:
MFCD00004223
MOL File:
79-43-6.mol
MSDS File:
SDS
Last updated:2024-03-14 15:18:27

Dichloroacetic acid Properties

Melting point 9-11 °C(lit.)
Boiling point 194 °C(lit.)
Density 1.56 g/mL at 25 °C (lit.)
vapor density 4.5 (vs air)
vapor pressure 0.19 mm Hg ( 20 °C)
refractive index n20/D 1.466(lit.)
Flash point >230 °F
storage temp. Store below +30°C.
solubility Chloroform (Slightly), Methanol (Slightly)
form Liquid
pka 1.48(at 25℃)
color APHA: <50
PH 1.2 (129g/l, H2O, 20℃)
Viscosity 4.696mm2/s
Water Solubility soluble
Sensitive Hygroscopic
Merck 14,3050
BRN 1098596
Dielectric constant 10.7(-7℃)
Exposure limits ACGIH: TWA 0.5 ppm (Skin)
Stability Stable. Incompatible with strong oxidizing agents, strong bases, strong reducing agents. Reacts with water. Protect from moisture. Hygroscopic.
InChIKey JXTHNDFMNIQAHM-UHFFFAOYSA-N
LogP 0.92
CAS DataBase Reference 79-43-6(CAS DataBase Reference)
EWG's Food Scores 5-6
FDA UNII 9LSH52S3LQ
Proposition 65 List Dichloroacetic Acid
IARC 2B (Vol. 63, 84, 106) 2014
NIST Chemistry Reference Acetic acid, dichloro-(79-43-6)
EPA Substance Registry System Dichloroacetic acid (79-43-6)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictogramsGHS hazard pictogramsGHS hazard pictogramsGHS hazard pictograms
GHS05,GHS06,GHS08,GHS09
Signal word  Danger
Hazard statements  H290-H311-H314-H351-H360FD-H373-H400
Precautionary statements  P202-P273-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338
Hazard Codes  Xn,N,C,Xi,F
Risk Statements  36/38-40-50-35-36/37/38-67-38-65-48/20-11-63-50/53
Safety Statements  26-45-61-36/37-36-16-62-36/37/39
RIDADR  UN 1764 8/PG 2
WGK Germany  2
RTECS  AG6125000
3-10
TSCA  Yes
HS Code  2915 40 00
HazardClass  8
PackingGroup  II
Toxicity LD50 orally in rats: 2.82 g/kg (Smyth)
NFPA 704
1
3 0

Dichloroacetic acid price More Price(37)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich DX0657 Dichloroacetic Acid Biotechnology 79-43-6 4L $1990 2024-03-01 Buy
Sigma-Aldrich D54702 Dichloroacetic acid ReagentPlus , ≥99% 79-43-6 2.5l $316 2024-03-01 Buy
Sigma-Aldrich BI0841 Deblock Reagent 10% DCA in Toluene BiosynthesisNovabiochem? 79-43-6 4L $253 2024-03-01 Buy
Sigma-Aldrich BI0832 Deblocking Reagent 3% Dichloroacetic Acid in Toluene Novabiochem? 79-43-6 1L $217 2024-03-01 Buy
Sigma-Aldrich BI0841 Deblock Reagent 10% DCA in Toluene BiosynthesisNovabiochem? 79-43-6 20L $2000 2024-03-01 Buy
Product number Packaging Price Buy
DX0657 4L $1990 Buy
D54702 2.5l $316 Buy
BI0841 4L $253 Buy
BI0832 1L $217 Buy
BI0841 20L $2000 Buy

Dichloroacetic acid Chemical Properties,Uses,Production

Description

DCA is a corrosive, combustible, colorless liquid with a pungent odor. Molecular weight = 128.94;Specific gravity (H2O:1) = 1.56; Boiling point = 193.8℃;Freezing/Melting point = 9.7-13.5℃; Vaporpressure = 1 mmHg at 44℃; Flash point = 110℃. HazardIdentification (based on NFPA-704 M Rating System):Health 3, Flammability 1, Reactivity 1. Highly corrosive.Soluble in water.

Chemical Properties

Dichloroacetic acid, CHCI2COOH, also known as dichlorethanoic acid, is a corrosive, combustible, colorless, strong liquid acid with a pungent odor. It is soluble in water and alcohol. Dichloroacetic acid (Ka=5.14 × 10-2) is a stronger acid than chloroacetic acid. Most chemical reactions are similar to those of chloroacetic acid, although both chlorine atoms are susceptible to reaction. Dichloroacetic acid is much more stable to hydrolysis than chloroacetic acid. It is a reactive intermediate in organic synthesis. Dichloroacetic acid is prepared by the chlorination of acetic acid.

Uses

Dichloroacetic acid is used as an intermediate to make other chemicals such as its salts and esters. It is involved as a test reagent for fiber analysis and a disinfectant. It is used to inhibit mitochondrial PDK (pyruvate dehydrogenase kinase) and to shift cellular metabolism from glycolysis to glucose oxidation. Further, it is used in the treatment for post-ischemic recovery.

Definition

ChEBI: Dichloroacetic acid is an organochlorine compound comprising acetic acid carrying two chloro substituents at the 2-position. It occurs in nature in seaweed, Asparagopsis taxiformis. It has a role as an astringent and a marine metabolite. It is a monocarboxylic acid and an organochlorine compound. It derives from an acetic acid. It is a conjugate acid of a dichloroacetate.

Preparation

Dichloroacetic acid was reported to be first synthesized in 1864 by the further chlorination of monochloroacetic acid with chlorine (Beilstein Online, 2002). The most common production method for dichloroacetic acid is the hydrolysis of dichloroacetyl chloride, which is produced by the oxidation of trichloroethylene.

Application

Dichloroacetic acid (DCA) is a chlorinated acetic acid that has been reported to be a mouse liver carcinogen. The varying degrees of swelling of polyester in different concentrations of DCA solution has been analyzed by phase-contrast microscopy. The efficiency of titanium dioxide (TiO2) nanoparticles to catalyze the photodegradation of DCA has been investigated.
Dichloroacetic acid (DCA) can be used as:
A reactant in the synthesis of chloroketones by reacting with esters in the presence of LiHMDS via Claisen-type homologation reaction.
A structure-directing agent, solvent, or plastdopant for the preparation of different morphologies of polyaniline (PANI). Self-assembling nanostructured PANI may be formed due to the presence of strong hydrogen bonding between DCA and aniline/polyaniline.

General Description

Dichloroacetic acid appears as a colorless crystalline solid melting at 49°F. Corrosive to metals and tissue.

Air & Water Reactions

Soluble in water.

Reactivity Profile

Dichloroacetic acid is probably hygroscopic. Dichloroacetic acid reacts with water or steam. Dichloroacetic acid is incompatible with strong oxidizing agents, strong bases and strong reducing agents.

Health Hazard

TOXIC; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.

Fire Hazard

Combustible material: may burn but does not ignite readily. When heated, vapors may form explosive mixtures with air: indoors, outdoors and sewers explosion hazards. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Runoff may pollute waterways. Substance may be transported in a molten form.

Flammability and Explosibility

Non flammable

Safety Profile

Moderately toxic by skin contact and ingestion. It is corrosive to the skin, eyes, and mucous membranes. Questionable carcinogen with experimental tumorigenic data. Will react with water or steam to produce toxic and corrosive fumes. When heated to decomposition it emits toxic fumes of Cl-. See also CHLORIDES.

Potential Exposure

This haloacetic acid can be a byproduct of drinking water disinfection and may increase the risk of cancer. This chemical is used as starting material for the production of glyoxylic; dialkyloxy acids; and sulfonamides. It is also used as a fungicide, a medication; and a chemical intermediate in pharmaceuticals

First aid

If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least15 min, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts theskin, remove contaminated clothing and wash immediatelywith soap and water. Seek medical attention immediately. Ifthis chemical has been inhaled, remove from exposure,begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR ifheart action has stopped. Transfer promptly to a medicalfacility. When this chemical has been swallowed, get medical attention. If victim is conscious, administer water ormilk. Do not induce vomiting. Medical observation isrecommended for 2448 h after breathing overexposure, aspulmonary edema may be delayed. As first aid for pulmonary edema, a doctor or authorized paramedic may consideradministering a corticosteroid spray.

storage

Color Code—White: Corrosive or Contact Hazard;Store separately in a corrosion-resistant location. Prior toworking with DCA you should be trained on its proper handling and storage. Store in tightly closed containers in acool, well-ventilated area away from incompatible materialslisted above. Metal containers involving the transfer of thischemical should be grounded and bonded. Where possible,automatically pump liquid from drums or other storage containers to process containers. Drums must be equipped withself-closing valves, pressure vacuum bungs, and flamearresters. Use only nonsparking tools and equipment, especially when opening and closing containers of this chemical. Sources of ignition, such as smoking and open flames,are prohibited where this chemical is used, handled, orstored in a manner that could create a potential fire orexplosion hazard. Wherever this chemical is used, handled,manufactured, or stored, use explosion-proof electricalequipment and fittings.

Shipping

UN1764 Dichloricacetic acid, Hazard class: 8; Labels: 8-Corrosive material.

Purification Methods

Crystallise this strong acid from *benzene or pet ether. Dry it with MgSO4 and fractionally distil it. [Bernasconi et al. J Am Chem Soc 107 3612 1985, Beilstein 2 IV 498.]

Incompatibilities

DCA is a medium strong acid; incompatible with nonoxidizing mineral acids; organic acids; bases, acrylates, aldehydes, alcohols, alkylene oxides; ammonia, aliphatic amines; alkanolamines, aromatic amines; amides, furfuryl alcohol (explosion hazard), glycols, isocyanates, ketones. Attacks metals generating flammable hydrogen gas. Attacks some plastics, rubber, and coatings

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View Lastest Price from Dichloroacetic acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Dichloroacetic acid pictures 2023-07-27 Dichloroacetic acid
79-43-6
US $1.50 / g 1g 99.0% Min 100 Tons Shaanxi Didu New Materials Co. Ltd
	Dichloroacetic acid pictures 2023-06-27 Dichloroacetic acid
79-43-6
US $0.00 / KG 1KG 99% 50000KG/month Hebei Mojin Biotechnology Co., Ltd
Dichloroacetic acid pictures 2023-05-27 Dichloroacetic acid
79-43-6
US $100.00 / kg 25kg 99% 500t/month Henan Bao Enluo International TradeCo.,LTD
DICHLOROACETIC ACID PESTANAL DICHLOROACETIC ACID REAGENTPLUS(TM) & DICHLOROACETIC ACID, 1000MG, NEAT Dichloroaceticacid,99% DICHLOROACETIC ACID REDISTILLED Dichloressigsure DCA Deblock (0.36M dichloroacetic acid in toluene) DKhUK Dichloroacetic acid 5g [79-43-6] Dichloroacetic acid, 99+% 1LT Twochloroacetic acid Dichloroacetic acid ReagentPlus(R), >=99% Dichloroacetic acid, AR,98% DICHLOROACETIC ACID FOR SYNTHESIS 2,2-dichloroaceticacid acidedichloracetique Bichloracetic acid bichloraceticacid Dichloracetic acid dichloraceticacid Dichlorethanoic acid dichlorethanoicacid DICHLOROETHANOIC ACID DICHLOROACETIC ACID BICHLOROACETIC ACID RARECHEM AL BO 0413 Dichloroacetic acid solution DICHLOROACETIC ACID, REAGENTPLUS, >=99% 2,2,-dichloroethanoicacid dichloro-aceticaci Kyselina dichloroctova kyselinadichloroctova urner’sliquid Urner's liquid Acetic acid, 2,2-dichloro- oroacetic acid DichloroaceticAcidSolution,1000mg/L,1ml Dichloroacetic Acid > Dichloroacetic acid ISO 9001:2015 REACH Dichloroacetic Acid pure, 99% Dichloroacetic Acid, Extra Pure, SLR, Fisher Chemical&trade DICHLOROACETIC ACID EXTRA PURE DICHLOROACETICACID,REAGENT Aceticacid,dichloro- dca(acid) 2,2-Dichloroacetic acid dichloro dichloroacetic Dichloroacetic acidetic acid-dichloroacetic acid mixed standard,Methyl dichloroacetate-1-13C,BromodichloroaceticAcidSolution,1000mg/L,1ml Abacavir Impurity 22 79-43-6 C2H2CI2O2 Cl2CHCO2H 79436 Cl2CHCOOH CHCl2COOH Organic Acids Synthetic Reagents