2,4,5-Trichlorophenoxyacetic acid
- CAS No.
- 93-76-5
- Chemical Name:
- 2,4,5-Trichlorophenoxyacetic acid
- Synonyms
- 2,4,5-T;2,4,5-T ACID;Fortex;VEON;Forron;Tippon;Reddox;Reddon;WEEDONE;Trioxon
- CBNumber:
- CB6263140
- Molecular Formula:
- C8H5Cl3O3
- Molecular Weight:
- 255.48
- MOL File:
- 93-76-5.mol
- MSDS File:
- SDS
- Modify Date:
- 2023/6/20 14:22:13
| Melting point | 154-158 °C(lit.) |
|---|---|
| Boiling point | 361.82°C (rough estimate) |
| Density | 1.6048 (rough estimate) |
| vapor pressure | 6.46 at 25 °C (Lewis, 1989) |
| refractive index | 1.4700 (estimate) |
| Flash point | 2 °C |
| storage temp. | 0-6°C |
| solubility | Soluble in ethanol (548.2 mg/L), ether (243.2 mg/L), heptane (400 mg/L), xylenes (6.8 g/L), methanol (496 g/L), toluene (7.32 g/L) (quoted, Keith and Walters, 1992). |
| pka |
2.80 and 2.83 at 25 °C (ionic strength <0.01 M, Jafvert et al., 1990) 2.88 (Nelson and Faust, 1969) |
| form | crystalline |
| color | off-white to yellow |
| Water Solubility | 238mg/L(20 ºC) |
| Merck | 13,9111 |
| Henry's Law Constant | 4.87 at 25 °C (approximate - calculated from water solubility and vapor pressure) |
| Exposure limits | NIOSH REL: TWA 10 mg/m3, IDLH 250 mg/m3; OSHA PEL: TWA 10 mg/m3; ACGIH TLV: TWA 10 mg/m3. |
| Stability | Stable. Incompatible with strong bases, strong oxidizing agents, alkali metals, amines, alcohols. Reacts with many common metals. |
| CAS DataBase Reference | 93-76-5(CAS DataBase Reference) |
| NIST Chemistry Reference | Acetic acid, 2,4,5-trichlorophenoxy-(93-76-5) |
| EPA Substance Registry System | 2,4,5-T (93-76-5) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS06,GHS09 |
|---|---|
| Signal word | Danger |
| Hazard statements | H301-H312-H315-H319-H335-H410 |
| Precautionary statements | P261-P273-P280-P301+P310-P302+P352+P312-P305+P351+P338 |
| Hazard Codes | Xn,N,F |
| Risk Statements | 22-36/37/38-50/53-36-20/21/22-11 |
| Safety Statements | 24-60-61-36/37-26-16 |
| RIDADR | UN 2811 6.1/PG 3 |
| OEB | B |
| OEL | TWA: 10 mg/m3 |
| WGK Germany | 3 |
| RTECS | AJ8400000 |
| HazardClass | 6.1(b) |
| PackingGroup | III |
| HS Code | 29189100 |
| Toxicity | LC50 (96-hour) for rainbow trout 350 mg/L and carp 355 mg/L (Hartley and Kidd, 1987); acute oral LD50 for rats 500 mg/kg (Hartley and Kidd, 1987), 300 mg/kg (RTECS, 1985). |
| IDLA | 250 mg/m3 |
2,4,5-Trichlorophenoxyacetic acid price More Price(2)
2,4,5-Trichlorophenoxyacetic acid Chemical Properties,Uses,Production
Chemical Properties
white to light tan odourless solid
Physical properties
Colorless to pale brown, odorless crystals. Odor threshold from water is 2.92 mg/kg (quoted, Keith and Walters, 1992). Metallic taste.
Uses
It is suitable for plant cell culture tested. Post-emergence herbicide.
Definition
ChEBI: A chlorophenoxyacetic acid that is phenoxyacetic acid in which the ring hydrogens at postions 2, 4 and 5 are substituted by chlorines.
General Description
Light tan solid (melting point 153°C). Insoluble in water. Contact may irritate the skin.
Air & Water Reactions
Insoluble in water.
Reactivity Profile
2,4,5-Trichlorophenoxyacetic acid is a weak acid. Reacts with organic and inorganic bases to form water-soluble salts and with alcohols to form esters. Incompatible with strong oxidizing agents and strong bases. Can corrode metals, especially if moist. May harm painted surfaces .
Health Hazard
Overexposure to dust by inhalation or ingestion may cause fatigue, nausea, vomiting, lowered blood pressure, convulsions, coma. Dust may irritate eyes and skin.
Fire Hazard
Special Hazards of Combustion Products: Toxic hydrogen chloride and phosgene gases may be formed.
Potential Exposure
Those engaged in the manufacture, formulation, and application of this herbicide used to control woody and herbaceous weeds. The EPA has issued a rebuttable presumption against registration of 2,4,5-T for pesticide uses, however. The Viet Nam war era defoliant, Agent Orange, was a mixture of 2,4,5-T and 2,4-D.
Carcinogenicity
2,4,5-T was not mutagenic in bacterial assays, and it did not induce aneuploidy or somatic mutation in vitro. In vivo it did not cause micronuclei in mice or dominant lethal mutations in mice or rats.
Shipping
UN2811 Toxic solids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required. UN3345 Phenoxyacetic acid derivative pesticide, solid, toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous materials.
Purification Methods
Crystallise this herbicide from *benzene. [Beilstein 6 III 721.] (CANCER SUSPECT)
Incompatibilities
The aqueous solution is a weak acid. Incompatible with sulfuric acid, bases, ammonia, aliphatic amines; alkanolamines, isocyanates, alkylene oxides; epichlorohydrin; strong oxidizers, such as chlorine, bromine, fluorine, and strong bases.
Waste Disposal
Two disposal procedures have been discussed for 2,4,5-T: (1) Mix with excesssodium carbonate, add water and let stand for 24 hours before flushing down the drain with excess water; and (2) pour onto vermiculite and incinerate with wood, paper, and waste alcohol. In accordance with 40CFR165, follow recommendations for the disposal of pesticides and pesticide containers. Must be disposed properly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office. Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform with EPA regulations governing storage, transportation, treatment, and waste disposal.
2,4,5-Trichlorophenoxyacetic acid Preparation Products And Raw materials
Raw materials
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| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| ALTRAKEM PHARMA LIFE SCIENCES PRIVATE LIMITED | +919966658228 | Hyderabad, India | 486 | 58 | Inquiry |
| CLEARSYNTH LABS LTD. | +91-22-45045900 | Hyderabad, India | 6351 | 58 | Inquiry |
| A.J Chemicals | 91-9810153283 | New Delhi, India | 6124 | 58 | Inquiry |
| Hebei Mojin Biotechnology Co., Ltd | +86 13288715578 +8613288715578 | China | 12447 | 58 | Inquiry |
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| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | China | 49392 | 58 | Inquiry |
| career henan chemical co | +86-0371-86658258 +8613203830695 | China | 29825 | 58 | Inquiry |
| ANHUI WITOP BIOTECH CO., LTD | +8615255079626 | China | 23556 | 58 | Inquiry |
| AFINE CHEMICALS LIMITED | +86-0571-85134551 | China | 15395 | 58 | Inquiry |
| Shijiazhuang Tongyang Import and Export Co., LTD | 18031361688; | China | 987 | 58 | Inquiry |