tert-Butyl hydroperoxide (TBHP) 75-91-2

Tert-butyl Hydroperoxide
Trade Name: TBHP
English Name: Tert-butyl Hydroperoxide
Chemical Name: Tert-butyl Hydroperoxide
Chemical Structure:
Molecular Formula: C4H10O2
Molecular Weight: 90
Theoretical Active Oxygen Content: 17.78%
CAS: 79-91-2
Major Decomposition Products: Methane, acetone, tert-butanol.
Safety Parameters:
Half-life (measured in chlorobenzene solution):
0.1 hour: 207°C
1 hour: 185°C
10 hours: 164°C
Thermal Stability Data:
Self-Accelerating Decomposition Temperature (SADT): 80°C
Critical Temperature (Tem): 75°C
Storage Temperature (Tsmax): 0–40°C
Technical Specifications:
Purity: 69–71%
Active oxygen content: 12.24–12.60%
Other peroxides: 1% max
Specific gravity (25°C): 0.935
Packaging:
Standard packaging consists of polyethylene drums with a net weight of 25 kg or 180 kg. IBCs or tank trucks may also be used for transport; however, special attention must be paid to the fact that when packaged in IBCs or tank trucks, the SADT is 55°C and the critical temperature
is 50°C. Smaller packages may also be provided according to customer specifications.
BCHPC is a Class F solid organic peroxide. Cargo classification: 5.2; UN Number: 3109; Class 2 dangerous goods packaging.
Safety Precautions:
(1) Keep away from sources of ignition, open flames, and heat sources.
(2) Avoid contact with reducing agents (such as amines), acids, alkalis, and heavy metal compounds (such as accelerators, metal soaps, etc.).
(3) Please refer to the Material Safety Data Sheet (MSDS) for this product.
Applications:
TBHP is one of the most commonly used initiators for radical reactions. It is characterized by good thermal stability, safe handling, and ease of control. At temperatures below 50°C
, its activity remains stable for three months without significant change, and it does not require costly frozen storage. It can be used in emulsion polymerization, aqueous-phase polymerization, curing, and graft polymerization, among other applications, and in many respects, its performance
outperforms persulfates, isopropylbenzene hydroperoxide, and benzoyl peroxide in many respects. The decomposition products of TBHP are primarily tert-butanol and small amounts of acetone; it is non-corrosive and does not impose high demands on equipment. In contrast,
most other initiators form acidic byproducts.
TBHP is also widely used as a polymerization initiator for styrene, acrylic acid, and methacrylic acid.
TBHP serves as a vulcanizing agent for natural rubber. It can be used to improve the cetane number of diesel fuel. Additionally, it is a very important organic synthesis intermediate; it exhibits special selectivity for epoxidation and
high yields, making it a very important oxidizing agent.
Storage Conditions:
Keep the packaging tightly sealed and in a well-ventilated area. The maximum storage temperature is 40°C. Avoid contact with reducing agents such as amines, acids, alkalis, and heavy metal compounds (accelerators and metal soaps). Repackaging and handling within the warehouse
are strictly prohibited.
Storage Stability:
When stored under the conditions specified by the manufacturer, the product is guaranteed to meet factory technical standards for six months.
Fire Extinguishing:
For small fires, use dry powder or carbon dioxide fire extinguishers, while simultaneously spraying with copious amounts of water to prevent reignition. For large fires, spray with copious amounts of water from a safe distance.