Functional Roles
Industries Served
Physical Properties
melting_point
261 to 264 u00b0F (NTP, 1992)
boiling_point
563 u00b0F at 760 mmHg (NTP, 1992)
density
1.05 (NTP, 1992) - Denser than water; will sink
solubility
less than 1 mg/mL at 66 u00b0F (NTP, 1992)
vapor_pressure
less than 1 mmHg at 68 u00b0F (NTP, 1992)
flash_point
340 u00b0F (NTP, 1992)
ph
pH = 4.56 at 25 u00b0C of a 1% solution of 2-tert-butylhydroquinone
GHS / SDS Safety
Warning
Environmental Hazard
Irritant
- H319 (45%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
- H315: Causes skin irritation [Warning Skin corrosion/irritation]
- H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
- H312 (29.9%): Harmful in contact with skin [Warning Acute toxicity, dermal]
- H302 (95.9%): Harmful if swallowed [Warning Acute toxicity, oral]
- H410 (13.2%): Very toxic to aquatic life with long lasting effects [Warning Hazardous to the aquatic environment, long-term hazard]
- H400 (36.9%): Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]
- H302: Harmful if swallowed [Warning Acute toxicity, oral]
- H315 (25.6%): Causes skin irritation [Warning Skin corrosion/irritation]
- H317: May cause an allergic skin reaction [Warning Sensitization, Skin]
- H317 (33.4%): May cause an allergic skin reaction [Warning Sensitization, Skin]
- H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]
- H302+H312 (19.5%): Harmful if swallowed or in contact with skin [Warning Acute toxicity, oral; acute toxicity, dermal]
Chemical Identity
| CAS Number | 1948-33-0 |
| IUPAC Name | 2-tert-butylbenzene-1,4-diol |
| InChI Key | BGNXCDMCOKJUMV-UHFFFAOYSA-N |
| PubChem CID | 16043 |
| INCI Name | TBHQ |
Synonyms & Trade Names
Full Description
20 % Tertiary Butylhydroquinone (TBHQ) is a white crystalline antioxidant powder. It typically appears as white to off-white fine crystals with a faint