2,4,5-Trichlorophenoxyacetic acid
- CAS:93-76-5
- MF:C8H5Cl3O3
- MW:255.48
- EINECS:202-273-3
- 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).
- form :
- crystalline
- pka:
- 2.80 and 2.83 at 25 °C (ionic strength <0.01 M, Jafvert et al., 1990)
2.88 (Nelson and Faust, 1969)
- 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.
- 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
2Y
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