Molekula
t-Butyl hydroperoxide 70% in water
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
t-Butyl hydroperoxide (70% in water) is an organic peroxide widely used as an initiator in polymerizations, bleaching agent, and oxidant in chemical synthesis. It decomposes to form free radicals, enabling controlled radical reactions in industrial and laboratory settings. This product has a CAS number of 75-91-2, a molecular formula of (CH3)3COOH, and a molecular weight of 90.12 g/mol. It must be stored between 2 to 8°C and carries a "Danger" signal word due to its hazardous properties. Molekula supplies t-Butyl hydroperoxide 70% in water from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Clear colourless liquid |
| Density | ~ 0.93g/ml |
| Refractive Index | ~1.387 |
| Assay | ~70.0% (w/w) |
| Active Oxygen | ~ 12.5% (w/w) |
| Viscosity (20℃) | ~ 4.1mPa.s |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Flash Point | 43 °C |
| Transport Class | 5.2 (8) |
| Acidity | Base |
Identification
| Property | Value |
|---|---|
| SKU | 90026730 |
| CAS Number | 75-91-2 |
| IUPAC Name | 2-hydroperoxy-2-methylpropane |
| EC Number | 200-915-7 |
| Molecular Formula | (CH3)3COOH |
| Molecular Weight | 90.12 |
| Exact Mass | 90.0681 |
| SMILES | CC(C)(C)OO |
| InChIKey | CIHOLLKRGTVIJN-UHFFFAOYSA-N |
| InChI | InChI=1S/C4H10O2/c1-4(2,3)6-5/h5H,1-3H3 |
| PubChem CID | 6410 |
| UN Number | UN3109 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29096050 |
| Tariff Code | 2909609090 |
Safety & GHS
-
Flammable
GHS02
-
Corrosive
GHS05
-
Toxic
GHS06
-
Serious Health Hazard
GHS08
-
Hazardous to the Environment
GHS09
Hazard statements
- H226 Flammable liquid and vapour
- H242 Heating may cause a fire
- H311 Toxic in contact with skin
- H314 (sub cat. 1C) Causes severe skin burns and eye damage
- H330 Fatal if inhaled
- H341 Suspected of causing genetic defects
- H351 Suspected of causing cancer
- H411 Toxic to aquatic life with long lasting effects
Precautionary statements
- P201 Obtain special instructions before use
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 1,1-Dimethylethyl hydroperoxide
- 2-Hydroperoxy-2-methylpropane
- Cadox TBH
- Hydroperoxide, 1,1-dimethylethyl
- Hydroperoxide, tert-butyl
- Hydroperoxyde de butyle tertiaire
- Perbutyl H
- TBHP
- Terc. butylhydroperoxid
- TERT-BUTYL HYDROPEROXIDE
Frequently asked questions
What is t-Butyl hydroperoxide (70% in water) commonly used for?
It is primarily used as an initiator for polymerization reactions, such as in the production of plastics, rubbers, and synthetic resins, as well as in epoxidation processes.
What is the chemical formula and molecular weight of t-Butyl hydroperoxide?
The chemical formula is **(CH₃)₃COOH** and the molecular weight is **90.12 g/mol** (for the pure compound; the 70% aqueous solution adjusts the effective concentration).
What safety classification does t-Butyl hydroperoxide (70% in water) have?
The product is classified with the **signal word 'Danger'** due to its oxidizing properties and potential hazards.
How should t-Butyl hydroperoxide (70% in water) be stored?
Store at **2 to 8°C** in a cool, well-ventilated area, away from heat, sparks, or open flames, and keep containers tightly sealed.
Can Molekula supply t-Butyl hydroperoxide in bulk quantities?
Yes, Molekula can supply t-Butyl hydroperoxide in bulk, including drums or IBCs, depending on your requirements—please contact us for specific packaging options.
What documentation is provided with an order of t-Butyl hydroperoxide?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS/SDS)**, and a **packing slip** with batch-specific details.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.