Tert-butyl hydroperoxide TBHP-70W  is a volatile, slightly yellow transparent liquid and an alkyl hydrogen organic peroxide. It is used as an initiator for polymerization reactions (polyacrylic acid emulsion polymerization monomer elimination, etc.); it is also widely used as a raw material for the synthesis of other organic peroxides. CAS-N .75-91-2Tert-butyl hydroperoxide TBHP-70W produced by Guangzhou Sanming Chemical Co., Ltd. is a volatile, slightly yellow transparent liquid and an alkyl hydrogen organic peroxide. It is used as an initiator for polymerization reactions (polyacrylic acid emulsion polymerization monomer elimination, etc.); it is also widely used as a raw material for the synthesis of other organic peroxides. CAS-N .75-91-2

Molecular formula:

Molecular weight: C4H10O2=90.1

Safety data:

Flash point (closed cup) 40℃

Self-accelerating decomposition temperature (SADT) 80℃

United Nations number (UN-Ng) 3109

China Hazardous Chemicals Number (CH-Ng) 52017

Physical and chemical properties:

State   ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­ ¡­¡­ ¡­¡­¡­¡­¡­¡­Liquid

Specific gravity (d²)¡­   ¡­¡­ ¡­¡­        ¡­¡­¡­ ¡­~0.94

Melting point  ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­-3℃

Theoretical active oxygen content¡­¡­¡­¡­¡­¡­¡­¡­ ¡­  ¡­¡­¡­17.78%

Main quality indicators:

Appearance  ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­Colorless to light yellow transparent liquid

Content  ¡­¡­¡­¡­¡­¡­¡­ ¡­¡­¡­¡­¡­¡­¡­¡­¡­69~71%

Chroma  ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­ ¡­ 40 Black Zeng Max.

Sodium hydroxide solution reaction¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­ ¡­¡­¡­Transparent

Half-life data:

Active energy¡­¡­¡­¡­¡­¡­¡­ ¡­¡­¡­¡­ ¡­44.4kcal/mole

1 minute half-life temperature¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­264℃

1 hour half-life temperature¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­185℃

10 hour half-life temperature¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­164℃

Solubility:

Soluble in alcohol, ester, ether, hydrocarbon organic solvents and sodium hydroxide aqueous solution. Slightly soluble in water.

Packaging and storage:

25kg or 190kg PE barrel packaging.

Store in a cool and ventilated place below 0~35℃.

Application:

Can be used in emulsion polymerization, water-based polymerization, curing and graft polymerization, etc., widely used as polymerization initiator for acrylic acid and methacrylic acid.