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Aceticacid, (2,4-dichlorophenoxy)- (7CI,8CI,9CI) (2,4-Dichlorophenoxy)acetic acid 2,4-Dichlorophenoxyacetic acid ester
2,4-Dichlorophenoxyacetic acid Chemical Properties |
Melting point | 136-140 °C (lit.) |
Boiling point | 160 °C (0.4 mmHg) |
density | 1.563 |
bulk density | 720kg/m3 |
vapor pressure | 0.4 mm Hg ( 160 °C) |
refractive index | 1.5000 (estimate) |
Fp | 160°C/0.4mm |
storage temp. | 2-8°C |
solubility | Soluble in organic solvents (ethanol, acetone, dioxane) |
pka | pK1:2.64 (25°C) |
form | crystalline |
color | off-white to tan |
PH Range | Acidic |
Odor Threshold | 3.13 ppm |
Water Solubility | Slightly soluble. Decomposes. 0.0890 g/100 mL |
Merck | 14,2796 |
BRN | 1214242 |
Henry's Law Constant | 6.72 and 0.84 x 10-5 atm?m3/mol were reported at pH values of 1 and 7, respectively (wetted-wall column, Rice et al., 1997a) |
Exposure limits | NIOSH REL: TWA 10 mg/m3, IDLH 100 mg/m3; OSHA PEL: TWA 10 mg/m3; ACGIH TLV: TWA 10 mg/m3. |
Stability: | Stable, but moisture-sensitive and may be light-sensitive. Incompatible with strong oxidizing agents, corrodes many metals. Decomposes in water. |
LogP | 2.810 |
CAS DataBase Reference | 94-75-7(CAS DataBase Reference) |
IARC | 2B (Vol. 113) 2018 |
NIST Chemistry Reference | (2,4-Dichlorophenoxy)acetic acid(94-75-7) |
EPA Substance Registry System | 2,4-D (94-75-7) |
Safety Information |
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 |
OEB | B |
OEL | TWA: 10 mg/m3 |
WGK Germany | 2 |
RTECS | AG6825000 |
Autoignition Temperature | > 180 °C |
TSCA | Yes |
HazardClass | 6.1 |
PackingGroup | III |
HS Code | 29189090 |
Hazardous Substances Data | 94-75-7(Hazardous Substances Data) |
Toxicity | LD50 (oral): rat [free] 375 mg/kg, [-Na] 666-805 mg/kg. |
IDLA | 100 mg/m3 |
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