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ChemicalBook >> CAS DataBase List >> tert-Butylhydroquinone


CAS No.1948-33-0
Chemical Name:tert-Butylhydroquinone
Synonyms:TBHQ;MTBHQ;0.0025;Sustane;TBHQ,FCC;NSC 4972;banox20ba;tenoxtbhq;Tenox tbhq;TERTIARYBHQ
Molecular Formula:C10H14O2
Formula Weight:166.22
MOL File:1948-33-0.mol
tert-Butylhydroquinone Property
Melting point : 127-129 °C(lit.)
Boiling point : 295 °C
density : 295
Fp : 171 °C
Water Solubility : Slightly soluble in water(10g/L).
BRN : 637923
Stability:: Stable. Incompatible with strong bases, strong oxidizing agents.
CAS DataBase Reference: 1948-33-0(CAS DataBase Reference)
NIST Chemistry Reference: 1,4-Benzenediol, 2-(1,1-dimethylethyl)-(1948-33-0)
EPA Substance Registry System: 1,4-Benzenediol, 2-(1,1-dimethylethyl)-(1948-33-0)
Hazard Codes : Xn
Risk Statements : 22-36/37/38
Safety Statements : 26-36-28A
WGK Germany : 3
RTECS : MX4375000
TSCA : Yes
HazardClass : 9
PackingGroup : III
HS Code : 29072900
Hazardous Substances Data: 1948-33-0(Hazardous Substances Data)

tert-Butylhydroquinone Chemical Properties,Usage,Production

Chemical Properties
tan powder
General Description
White to light tan crystalline powder or a fine beige powder. Very slight aromatic odor.
Air & Water Reactions
Insoluble in water.
Reactivity Profile
Phenols, such as tert-Butylhydroquinone, do not behave as organic alcohols, as one might guess from the presence of a hydroxyl (-OH) group in their structure. Instead, they react as weak organic acids. Phenols and cresols are much weaker as acids than common carboxylic acids (phenol has Ka = 1.3 x 10^[-10]). These materials are incompatible with strong reducing substances such as hydrides, nitrides, alkali metals, and sulfides. Flammable gas (H2) is often generated, and the heat of the reaction may ignite the gas. Heat is also generated by the acid-base reaction between phenols and bases. Such heating may initiate polymerization of the organic compound. Phenols are sulfonated very readily (for example, by concentrated sulfuric acid at room temperature). The reactions generate heat. Phenols are also nitrated very rapidly, even by dilute nitric acid. Nitrated phenols often explode when heated. Many of them form metal salts that tend toward detonation by rather mild shock. tert-Butylhydroquinone is incompatible with oxidizers.
Fire Hazard
tert-Butylhydroquinone is combustible.
tert-Butylhydroquinone Preparation Products And Raw materials
Raw materials
ISOBUTYLENE tert-Butylbenzene Hydroquinone 2,5-Di-tert-butylhydroquinone
Preparation Products
Butylated hydroxyanisole
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