4-tert-Butylcatechol (TBC) is an organic chemical compound which is a derivative of catechol. It is added as a stabilizer and an inhibitor of polymerization to butadiene, styrene, vinyl acetate and other reactive monomer streams. It is 25 times better than hydroquinone at 60°C for polymerization inhibitory effect. Also used as a stabilizer in the manufacture of polyurethane foam. It also can be used as an antioxidant for synthetic rubber, polymers and oil derivatives. It can be used as purification agent for aminoformate catalysts. TBC is available in a form of a solid crystal and 85% solution in methanol or water.
Product Description:
English name: 4-tert-Butylcatechol
CAS number: 98-29-3
Molecular formula: C10H14O2
Molecular weight: 166.22
EINECS number: 202-653-9
MDL No. : MFCD00002201
Stats
Melting point 52-55 °C(lit.)
Boiling point 285 °C(lit.)
Density 1.049
Vapor pressure <1 hPa (25 °C)
Refractive index n20/D 1.508
Flash point >230 °F
Storage conditions Store below +30°C.
Solubility methanol: soluble1g/10 mL, clear, colorless to slightly yellow
Acidity coefficient (pKa)9.92±0.10(Predicted)
Form powder to lump
Color White to Light yellow to Light red
Odor at 10.00? %? in? dipropylene glycol. phenolic
Water solubility 0.2g /100 mL (25 ºC)
Sensitivity Hygroscopic
BRN2043335
Exposure limit ACGIH: TWA 5 ppm (Skin)
NIOSH: TWA 5 ppm(20 mg/m3)
InChIKeyXESZUVZBAMCAEJ-UHFFFAOYSA-N
LogP1.98 at 25 ° C
Safety information
hazard symbol (GHS)GHS hazard pictogramsGHS hazard pictogramsGHS Hazard pictogramgrams
GHS05,GHS07,GHS09
Danger
Hazard Description H302+H312-H314-H317-H410
Precautions P260-P273-P280-P301+P312-P303+P361+P353-P305+P351+P338
Dangerous Goods Mark C,N,T
Danger category code 22-34-43-21-51/53-21/22-39/23/24/25-20/21/22-10-50/53
Safety Instructions 26-36/37/39-45-61-24-60
Dangerous Goods Transport Code UN 2923 8/PG 3
WGK Germany2
RTECS number UX1400000
Spontaneous combustion temperature 160 °C
TSCAYes
Danger level 8
Packaging Category III
Customs Code 29072900
LD50 orally in Rabbit: 815 mg/kg LD50 dermal Rat 1331 mg/kg
China
