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p-Cresol Structure

p-Cresol

Chemical Properties

Melting point 32-34 °C(lit.)
Boiling point 202 °C(lit.)
Density  1.034 g/mL at 25 °C(lit.)
vapor density  3.72 (vs air)
vapor pressure  1 mm Hg ( 20 °C)
FEMA  2337 | P-CRESOL
refractive index  nD20 1.5395
Flash point 193 °F
storage temp.  Store below +30°C.
solubility  20g/l
pka 10.17(at 25℃)
form  Crystalline Solid or Liquid
color  Colorless to light yellow, may darken on exposure to light
Specific Gravity 1.0341 (20/4℃)
Odor at 0.10 % in dipropylene glycol. phenolic narcissus animal mimosa
Odor Type phenolic
Odor Threshold 0.000054ppm
explosive limit 1%(V)
Water Solubility  20 g/L (20 ºC)
Sensitive  Light Sensitive
JECFA Number 693
Merck  14,2579
BRN  1305151
Henry's Law Constant 6.17 at 20.00 °C, 9.31 at 25.00 °C (dynamic equilibrium system-GC, Feigenbrugel et al., 2004a)
Exposure limits NIOSH REL: TWA 2.3 ppm (10 mg/m3), IDLH 250 ppm; OSHA PEL: TWA 5 ppm (22 mg/m3); ACGIH TLV: TWA for all isomers 5 ppm (adopted).
Dielectric constant 5.6(21.0℃)
Stability Stable. Combustible. Incompatible with strong oxidizing agents. Air and light-sensitive. Hygroscopic.
LogP 1.94
CAS DataBase Reference 106-44-5(CAS DataBase Reference)
NIST Chemistry Reference Phenol, 4-methyl-(106-44-5)
EPA Substance Registry System p-Cresol (106-44-5)

Safety Information

Hazard Codes  T,Xi
Risk Statements  24/25-34-39/23/24/25-23/24/25
Safety Statements  36/37/39-45-36/37
RIDADR  UN 3455 6.1/PG 2
WGK Germany  1
RTECS  GO6475000
8
Autoignition Temperature 555 °C
Hazard Note  Irritant
TSCA  Yes
HazardClass  6.1
PackingGroup  II
HS Code  29071200
Hazardous Substances Data 106-44-5(Hazardous Substances Data)
Toxicity LD50 orally in rats: 1.8 g/kg (Deichmann, Witherup)

MSDS

Usage And Synthesis

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