1948-33-0
Product Name:
tert-Butylhydroquinone
Formula:
C10H14O2
Synonyms:
2-(1,1-Dimethylethyl)-1,4-benzenediol;2-tert.-Butyl-1,4-dihydroxybenzene;NSC 4972;tert-Butylhydroquinone
Inquiry
CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Tert-butylhydroquinone appears as white to light tan crystalline powder or a fine beige powder. Very slight aromatic odor. (NTP, 1992) |
|---|---|
| Color/Form | White to light tan crystalline powder or a fine beige powder |
| Odor | Very slight aromatic odor |
| Boiling Point | 563 °F at 760 mmHg (NTP, 1992) |
| Melting Point | 261 to 264 °F (NTP, 1992) |
| Flash Point | 340 °F (NTP, 1992) |
| Solubility | less than 1 mg/mL at 66 °F (NTP, 1992) |
| Density | 1.05 (NTP, 1992) - Denser than water; will sink |
| Vapor Density | 5.73 (NTP, 1992) - Heavier than air; will sink (Relative to Air) |
| Vapor Pressure | less than 1 mmHg at 68 °F (NTP, 1992) |
| Stability/Shelf Life | Stable under recommended storage conditions. |
| Decomposition | When heated to decomposition it emits acrid smoke and irritating fumes. |
| pH | pH = 4.56 at 25 °C of a 1% solution of 2-tert-butylhydroquinone |
| Dissociation Constants | pKa = 10.7 at 22 °C |
| Kovats Retention Index | 1566 |
| Chemical Classes | Other Classes -> Phenols |
SAFETY INFORMATION
| Signal word | Warning |
|---|---|
| Pictogram(s) |
 Exclamation Mark Irritant GHS07  Environment GHS09 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H317:Sensitisation, Skin H319:Serious eye damage/eye irritation H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
COMPUTED DESCRIPTORS
| Molecular Weight | 166.22 g/mol |
|---|---|
| XLogP3 | 2.8 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 1 |
| Exact Mass | 166.099379685 g/mol |
| Monoisotopic Mass | 166.099379685 g/mol |
| Topological Polar Surface Area | 40.5 Ų |
| Heavy Atom Count | 12 |
| Formal Charge | 0 |
| Complexity | 148 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Tert-butylhydroquinone is a crystalline substance that can appear in shades ranging from white to light tan, or as a fine beige powder. It has a very slight aromatic odor, as noted by the National Toxicology Program in their 1992 report.