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2,4-Dichlorophenoxyacetic acid

Description References
2,4-Dichlorophenoxyacetic acid
2,4-Dichlorophenoxyacetic acid
CAS No.
94-75-7
Chemical Name:
2,4-Dichlorophenoxyacetic acid
Synonyms
For;u46d;GAPL;dma4;moxon;CAPRI;DYMEC;KAY-D;2,4-D;RASA4
CBNumber:
CB8762041
Molecular Formula:
C8H6Cl2O3
Formula Weight:
221.04
MOL File:
94-75-7.mol

2,4-Dichlorophenoxyacetic acid Properties

Melting point:
137 °C
Boiling point:
160 °C (0.4 mmHg)
Density 
1.563
vapor pressure 
0.4 mm Hg ( 160 °C)
refractive index 
1.5000 (estimate)
Flash point:
160°C/0.4mm
storage temp. 
APPROX 4°C
solubility 
0.3g/l
form 
crystalline
color 
off-white to tan
Water Solubility 
Slightly soluble. Decomposes. 0.0890 g/100 mL
Merck 
14,2796
BRN 
1214242
Stability:
Stable, but moisture-sensitive and may be light-sensitive. Incompatible with strong oxidizing agents, corrodes many metals. Decomposes in water.
CAS DataBase Reference
94-75-7(CAS DataBase Reference)
NIST Chemistry Reference
(2,4-Dichlorophenoxy)acetic acid(94-75-7)
EPA Substance Registry System
Acetic acid, (2,4-dichlorophenoxy)-(94-75-7)
SAFETY
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  Xn,Xi,T,F
Risk Statements  22-37-41-43-52/53-39/23/24/25-23/24/25-36/37/38-11-36-20/21/22-67-66
Safety Statements  24/25-26-36/37/39-46-61-2-45-36/37-27-16-7-9
RIDADR  UN 3077 9/PG 3
WGK Germany  2
RTECS  AG6825000
TSCA  Yes
HazardClass  6.1
PackingGroup  III
HS Code  29189090
Hazardous Substances Data 94-75-7(Hazardous Substances Data)
Symbol(GHS):
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501
H312 Harmful in contact with skin Acute toxicity,dermal Category 4 Warning P280,P302+P352, P312, P322, P363,P501
H317 May cause an allergic skin reaction Sensitisation, Skin Category 1 Warning P261, P272, P280, P302+P352,P333+P313, P321, P363, P501
H318 Causes serious eye damage Serious eye damage/eye irritation Category 1 Danger P280, P305+P351+P338, P310
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled Sensitisation, respiratory Category 1 Danger P261, P285, P304+P341, P342+P311,P501
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
H351 Suspected of causing cancer Carcinogenicity Category 2 Warning P201, P202, P281, P308+P313, P405,P501
H361 Suspected of damaging fertility or the unborn child Reproductive toxicity Category 2 Warning P201, P202, P281, P308+P313, P405,P501
H370 Causes damage to organs Specific target organ toxicity, single exposure Category 1 Danger P260, P264, P270, P307+P311, P321,P405, P501
H373 May cause damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 2 Warning P260, P314, P501
H402 Harmful to aquatic life Hazardous to the aquatic environment, acute hazard Category 3
H410 Very toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 1 Warning P273, P391, P501
H412 Harmful to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 3 P273, P501
Precautionary statements:
P201 Obtain special instructions before use.
P202 Do not handle until all safety precautions have been read and understood.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P262 Do not get in eyes, on skin, or on clothing.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P271 Use only outdoors or in a well-ventilated area.
P272 Contaminated work clothing should not be allowed out of the workplace.
P273 Avoid release to the environment.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P311 Call a POISON CENTER or doctor/physician.
P391 Collect spillage. Hazardous to the aquatic environment
P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P308+P313 IF exposed or concerned: Get medical advice/attention.
P342+P311 IF experiencing respiratory symptoms: call a POISON CENTER or doctor/physician.
P405 Store locked up.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P501 Dispose of contents/container to..…

2,4-Dichlorophenoxyacetic acid price More Price(19)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 31518 2,4-D PESTANAL , analytical standard 94-75-7 250mg $29.1 2018-11-13 Buy
Sigma-Aldrich 40330 2,4-D solution 94-75-7 1EA $33.3 2017-11-08 Buy
TCI Chemical D0396 2,4-Dichlorophenoxyacetic Acid >97.0%(T) 94-75-7 25g $14 2017-11-08 Buy
TCI Chemical D0396 2,4-Dichlorophenoxyacetic Acid >97.0%(T) 94-75-7 500g $65 2017-11-08 Buy
Alfa Aesar A12467 2,4-Dichlorophenoxyacetic acid, 98% 94-75-7 250g $38.9 2018-11-13 Buy

2,4-Dichlorophenoxyacetic acid Chemical Properties,Uses,Production

Description

As one of the most inexpensive and oldest weed killers, 2,4-Dichlorophenoxyacetic acid (usually called 2,4-D) is a systemic herbicide that is widely applied all over the world. It is effective to selectively kill a variety of terrestrial and aquatic broadleaf weeds without affecting most grasses, such as cereals, lawn turf, and grassland. Nowadays, 2,4-D is widely used to treat unwanted vegetation in various areas. In the field of forestry, it is used for stump treatment, trunk injection, selective control of brush in conifer forests and used to kill weeds and brush along roadways, railways, and power lines which probably damage equipment or interfere with safe operation. Besides, it is applied to control aquatic weeds for the safety of boating, fishing and swimming or protection of hydroelectric equipment. It is also used to control the spread of invasive, noxious and non-native weed species by government and control various poisonous weeds such as poison ivy and poison oak. In addiction to the forestry use, 2,4-D can also be used as a supplement in plant cell culture media in laboratories as a dedifferentiation hormone.

References

https://www.nrdc.org/stories/24-d-most-dangerous-pesticide-youve-never-heard
https://pubchem.ncbi.nlm.nih.gov/compound/1486#section=Top
https://en.wikipedia.org/wiki/2,4-Dichlorophenoxyacetic_acid

Chemical Properties

light yellow crystalline powder

Uses

Herbicide. Used to increase latex output of old rubber trees

Definition

ChEBI: A chlorophenoxyacetic acid that is phenoxyacetic acid in which the ring hydrogens at postions 2 and 4 are substituted by chlorines.

General Description

Odorless white to tan solid. Sinks in water.

Air & Water Reactions

Decomposes rapidly in water.

Reactivity Profile

2,4-Dichlorophenoxyacetic acid is incompatible with strong oxidizers. 2,4-Dichlorophenoxyacetic acid is corrosive to metals.

Health Hazard

Dust may irritate eyes. Ingestion causes gastroentric distress, diarrhea, mild central nervous system depression, dysphagia, and possible transient liver and kidney injury.

Fire Hazard

Special Hazards of Combustion Products: Toxic and irritating hydrogen chloride or phosgene gases may form.

Agricultural Uses

Herbicide, Plant growth regulator: 2,4-Dichlorophenoxyacetic acid was introduced as a plant growth-regulator in 1942. 2, 4-D is the most widely used herbicide in the United States and its used in more than 100 countries. It is registered in the United States as a herbicide for control of broadleaf plants and as a plant growth-regulator. There are many forms or derivatives of 2,4-D including esters, amines, and salts. It is used in cultivated agriculture, in pasture and rangeland applications, forest management, home, garden, and to control aquatic vegetation. It may be found in emulsion form, in aqueous solutions (salts), and as a dry compound. The product Agent Orange, made by Monsanto Chemical and used extensively throughout Vietnam, was about 50% 2,4-D. However, the controversies associated with the use of Agent Orange involved a contaminant (dioxin) in the 2,4,5-T component of the defoliant. In 1964 Agent Orange replaced Agent Purple a mixture of the n-butyl esters of 2,4-D and 2,4,5-T plus the isobutyl ester of 2,4,5-T.

Trade name

ACME® 2,4-D; AGROCER COMPLEX®; AGROTECT®; AMIDOX®; AMINOL 806®; AMINOZ®; AMOXONE®; AQUA-KLEEN®; BARRAGE®; BH 2,4-D®; BRUSH-RHAP®, active;[C]; BUSH KILLER®; B-SELEKTONON®; CAMPAIGN®; CHIPCO TURF HERBICIDE “D”®; CHLOROXONE®; CITRUS FIX; CROP RIDER®[C]; CROTILIN®; CURTAIL®; D 50®; 2,4-D PHENOXY PESTICIDE®; DACAMID®; DACAMINE®[C]; DECAMINE®; DEBROUSSAILLANT 600®; DEDWEED®; DEHERBAN®; DESORMONE® 2,4-D; DICOPUR®; DICOTOX®; DIKAMIN®; DIKONIRT®; DMA-4®; DORMONE®; DYMEC®; EMULSAMINE BK®[C]; EMULSAMINE E-3®[C]; ENVERT®[C]; ESTERON®; ESTERON BRUSH KILLER®; ESTERON 99 CONCENTRATE®; ESTERONE FOUR®, ESTERON 44 WEED KILLER®; ESTONE®; FARMCO®[C]; FERNESTA®; FERNIMINE®; FERNOXONE®; FERXONE®; FOREDEX 75®; FORMULA 40®; HEDONAL®; HERBANIL®; HERBI D-480®; HERBIDAL®; HERBOXONE®; HI-DEP®; HORMOTOX®; IPANER®; KROTILINE®; LAND MASTER®; LAWN-KEEP®; MACRONDRAY®; MALERBANE®; MATON®; MIRACLE®[C]; MONOSAN®; MOTA MASKROS®; MOXONE®; NETAGRONE®; PENNAMINE®[C]; PHENOX®; PIELIK®; PLANOTOX®; PLANTGARD®; RHODIA®; SALVO®[C]; SAVAGE®; SPRITZHORMIN/2,4-D®; SPRITZ-HORMIT/2,4-D®; SUPER D WEEDONE®; SUPERORMONE CONCENTRE®; TRANSAMINE®[C]; TRIBUTON®; TRINOXOL®[C]; U 46® 2,4-D; U-5043®; VERGEMASTER®; VERTON®[C]; VIDON 638®; VISKO®[C]; VISKORHAP®[C]; WEED-AG-BAR®; WEEDAR®; WEEDB-GON®; WEEDEZ WONDER BAR®; WEEDONE®; WEED-RHAP®[C]; WEED TOX®; WEEDTROL®

Purification Methods

Crystallise 2,4-D from MeOH. It is a plant growth substance, a herbicide and is TOXIC. [Beilstein 6 IV 908.]

2,4-Dichlorophenoxyacetic acid Preparation Products And Raw materials

Raw materials

Preparation Products


2,4-Dichlorophenoxyacetic acid Suppliers

Global( 308)Suppliers
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Shenzhen Sendi Biotechnology Co.Ltd.
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Alfa Aesar 400-610-6006; 021-67582000
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TCI (Shanghai) Development Co., Ltd. 021-67121386 / 800-988-0390
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