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Butylated Hydroxytoluene Structure

Butylated Hydroxytoluene

Chemical Properties

Melting point 69-73 °C(lit.)
Boiling point 265 °C(lit.)
Density  1.048
vapor density  7.6 (vs air)
vapor pressure  <0.01 mm Hg ( 20 °C)
refractive index  1.4859
FEMA  2184 | BUTYLATED HYDROXYTOLUENE
Flash point 127 °C
storage temp.  2-8°C
solubility  methanol: 0.1 g/mL, clear, colorless
form  Crystals
pka pKa 14(H2O t = 25 c = 0.002 to 0.01) (Uncertain)
color  white
Odor faint characteristic odor
Odor Type phenolic
Water Solubility  insoluble
Merck  14,1548
BRN  1911640
Exposure limits ACGIH: TWA 2 mg/m3
NIOSH: TWA 10 mg/m3
Stability Stable, but light-sensitive. Incompatible with acid chlorides, acid anhydrides, brass, copper, copper alloys, steel, bases, oxidizing agents. Combustible.
InChIKey NLZUEZXRPGMBCV-UHFFFAOYSA-N
LogP 5.2
FDA 21 CFR 172.115; 182.3173; 582.3173; 172.615; 175.105; 175.300; 177.1010; 181.24
Substances Added to Food (formerly EAFUS) BUTYLATED HYDROXYTOLUENE
SCOGS (Select Committee on GRAS Substances) Butylated Hydroxytoluene (BHT)
CAS DataBase Reference 128-37-0(CAS DataBase Reference)
EWG's Food Scores 4
FDA UNII 1P9D0Z171K
IARC 3 (Vol. 40, Sup 7) 1987
NIST Chemistry Reference Butylated hydroxytoluene(128-37-0)
EPA Substance Registry System 2,6-Di-tert-butyl-p-cresol (128-37-0)

Safety

Symbol(GHS)
Signal wordWarning
Hazard statements H410
Precautionary statements P273-P391-P501
Hazard Codes  Xn,N
Risk Statements  22-36/37/38-36/38-50/53
Safety Statements  26-36-37/39-61-60
RIDADR  3077
OEB B
OEL TWA: 10 mg/m3
WGK Germany  1
RTECS  GO7875000
8-10-23
Autoignition Temperature 878 °F
TSCA  Yes
HazardClass  9
PackingGroup  III
HS Code  29071900
Hazardous Substances Data 128-37-0(Hazardous Substances Data)
Toxicity LD50 orally in mice: 1040 mg/kg (McOmie)
NFPA 704:
1
0 0

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