t-Butyl hydroperoxide
CAS 75-91-2
EC 200-915-7
Formula C4H10O2
MW 90.12 g/mol
Oxidizers & Peroxides Plastics & PolymersLubricants & MetalworkingBiotechnology & Life Sciences Polymerization InitiationCatalysisBleaching & Whitening
Description
T-Butyl Hydroperoxide (TBHP, CAS 75-91-2) is an organic peroxide supplied as an aqueous solution, commercially available under trade names including Cadox TBH, T-HYDRO, Perbutyl H, and Kayabutyl H. It carries EC number 200-915-7 and is classified under HS code 29094990.
In plastics and polymer manufacturing, TBHP functions as a free-radical initiator, generating reactive radicals upon thermal or catalytic decomposition to drive polymerisation reactions. In lubricant and metalworking formulations, it acts as an oxidation catalyst, and in biotechnology applications it serves as a controlled oxidative reagent for bleaching and selective chemical transformations.
TBHP is available in stabilised aqueous solutions at concentrations typically ranging from 70% to 80%, with grades conforming to REACH registration requirements for supply within the EU. Packaging formats include IBC containers and drums suited to industrial procurement volumes.
In plastics and polymer manufacturing, TBHP functions as a free-radical initiator, generating reactive radicals upon thermal or catalytic decomposition to drive polymerisation reactions. In lubricant and metalworking formulations, it acts as an oxidation catalyst, and in biotechnology applications it serves as a controlled oxidative reagent for bleaching and selective chemical transformations.
TBHP is available in stabilised aqueous solutions at concentrations typically ranging from 70% to 80%, with grades conforming to REACH registration requirements for supply within the EU. Packaging formats include IBC containers and drums suited to industrial procurement volumes.
Physical Properties
| Melting Point | -8 °C |
| Boiling Point | 35 °C @ Press: 20 Torr |
| Density | 0.8960 g/cm³ @ Temp: 20 °C |
| Flash Point | 85 °F |
| Appearance | colourless liquid (as an aqueous solution) with a sweet smell |
| Color | Clear colorless |
| Form | Liquid |
| Water Solubility | Miscible |
| Vapor Pressure | 62 mmHg at 45 °C |
| Refractive Index | n 20/D 1.403 |
| pH | 4.3 |
| Log P | 1.230 (est) |
Safety & Handling (Learn More)
Danger GHS08 GHS02 GHS05 GHS06 GHS07 GHS09 GHS01
H
H225H226H240H242H301H302H311H312H314H317H318H330H331H332H335H336H341H350H370H371H372H373H401H411
P
P203P210P233P234P235P240P241P242P243P260P261P262P264P270P271P272P273P280P284P316P317P318P319P320P321P330P363P391P403P405P410P411P420P501P264+P265P301+P316P301+P317P302+P352P304+P340P308+P316P333+P317P361+P364P362+P364P370+P378P403+P233P403+P235P301+P330+P331P302+P361+P354P303+P361+P353P305+P354+P338P370+P372+P380+P373
Trade & Regulatory
| HS Code | 29094990 |
| UN Number | 3109 |
| ADR Class | 5.2 |
| Storage Class | 5.2 - Organic peroxides and self-reacting hazardous materials |
| WGK (Germany) | 3 |
Other Names
Tert-Butyl hydroperoxide2-hydroperoxy-2-methylpropanet-ButylhydroperoxideTBHPCadox TBHT-HYDRO(R)Perbutyl H
Related Products
Raw Materials
Derivatives
Need a chemical? Get a quote within 24 hours.