Tert-Butyl hydroperoxide

*tert*-Butyl hydroperoxide
Names
	Preferred IUPAC name 2-Methylpropane-2-peroxol
	Systematic IUPAC name tert-Butyl hydroperoxide
Identifiers
CAS Number	75-91-2 ;
3D model (JSmol)	Interactive image;
Abbreviations	TBHP
Beilstein Reference	1098280
ChEMBL	ChEMBL348399 ;
ChemSpider	6170 ;
ECHA InfoCard	100.000.833
EC Number	200-915-7;
MeSH	tert-Butylhydroperoxide
PubChem CID	6410;
RTECS number	EQ4900000;
UNII	955VYL842B ;
UN number	3109
CompTox Dashboard (EPA)	DTXSID9024693 ;
	InChI InChI=1S/C4H10O2/c1-4(2,3)6-5/h5H,1-3H3 Key: CIHOLLKRGTVIJN-UHFFFAOYSA-N ;
	SMILES CC(C)(C)OO;
Properties
Chemical formula	C4H10O2
Molar mass	90.122 g·mol−1
Appearance	Colorless liquid
Density	0.935 g/mL
Melting point	−3 °C (27 °F; 270 K)
Boiling point	37 °C (99 °F; 310 K) at 2.0 kPa
Solubility in water	miscible
log P	1.23
Acidity (pKa)	12.69
Basicity (pKb)	1.31
Refractive index (nD)	1.3870
Thermochemistry
Std enthalpy of; formation (ΔfH⦵298)	−294±5 kJ/mol
Std enthalpy of; combustion (ΔcH⦵298)	2.710±0.005 MJ/mol
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	oxidizer
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H226, H242, H302, H311, H314, H317, H331, H341, H411
Precautionary statements	P220, P261, P273, P280, P305+P351+P338, P310
NFPA 704 (fire diamond)	4 4 4 OX
Flash point	43 °C (109 °F; 316 K)
Safety data sheet (SDS)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

tert-Butyl hydroperoxide (tBuOOH) is the organic compound with the formula (CH₃)₃COOH. It is one of the most widely used hydroperoxides in a variety of oxidation processes, like the Halcon process. It is normally supplied as a 69–70% aqueous solution. Compared to hydrogen peroxide and organic peracids, tert-butyl hydroperoxide is less reactive and more soluble in organic solvents. Overall, it is renowned for the convenient handling properties of its solutions. Its solutions in organic solvents are highly stable.