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CAS NO:75-91-2
EC NO:200-915-7
Chemical Formula:C4H10O2
Applications Include:
Thermoplastics
Coatings
Dispersions & Speciality Polymers
Beyond Polymers
TBHP-70-AQ acts as an initiator (radical source) in the polymerization of monomers, e.g. ethylene in combination with other peroxides or oxygen, vinylacetate or (meth-)acrylates with suitable reducing agents (Fe-salts, sulfites, dithionites, rongalite, ascorbinic acid or sugar). Also acts as initiator for the copolymerization of styrene butadiene or acrylnitrile / butadiene / styrene in emulsion in combination with redox-systems in order to increase polymerization rate.
TBHP-70-AQ appears as a colorless mobile liquid which is de-sensitized with water with molecular weight of 90.1 g/mol.
TBHP-70-AQ is liquid even under high pressure and particularly suitable for reduction of residual monomer.
TBHP-70-AQ is used as an initiator for radical polymerization and in various oxidation process such as sharpless epoxidation.
TBHP-70-AQ is involved in osmium catalyzed vicinal hydroxylation of olefins under alkaline conditions. Furthermore, it is used in catalytic asymmetric oxidation of sulfides to sulfoxides using binaphthol as a chiral auxiliary and in the oxidation of dibenzothiophenes.
TBHP-70-AQ plays an important role for the introduction of peroxy groups in organic synthesis.
Many industries, including polymers and specialty chemicals, use TBHP-70-AQ as an initiator and/or oxidant.
TBHP-70-AQ provides higher thermal stability than other commonly used oxidizing agents.
TBHP-70-AQ has a high self-accelerating decomposition temperature (190°F/88°C). Little to no decomposition occurs up to moderate temperatures (~100°F/38°C).
TBHP-70-AQ provides versatility and convenience in many applications because of the solvent's compatibility. TBHP's solubility in water is about 15 wt.%.
TBHP is also miscible with most organic solvents.
TBHP-70-AQ provides reactivity control with appropriate catalyst choice and often mild reaction conditions. Selectivity advantages include regioselectivity, stereoselectivity and chemoselectivity. When reacted, the by-product tertiary butyl alcohol is stable. Simple distillation easily reduces the alcohol to low residual levels.
Applications
TBHP-70-AQ is used as an initiator for radical polymerization and in various oxidation process such as sharpless epoxidation.
TBHP-70-AQ is involved in osmium catalyzed vicinal hydroxylation of olefins under alkaline conditions. Furthermore, it is used in catalytic asymmetric oxidation of sulfides to sulfoxides using binaphthol as a chiral auxiliary and in the oxidation of dibenzothiophenes.
TBHP-70-AQ plays an important role for the introduction of peroxy groups in organic synthesis.
Density 0.937
Melting Point -3°C
Boiling Point 96°C (decomposition)
Flash Point 43°C (109°F)
Assay Percent Range 70% Aqueous Solution
Linear Formula (CH3)3COOH
TBHP-70-AQ is an alkyl hydroperoxide in which the alkyl group is tert-butyl.
TBHP-70-AQ is widely used in a variety of oxidation processes.
TBHP-70-AQ has a role as an antibacterial agent and an oxidising agent.
Industry Uses
Fillers
Fuels and fuel additives
Intermediates
Paint additives and coating additives not described by other categories
Plasticizers
Plating agents and surface treating agents
Process regulators
Processing aids, not otherwise listed
Consumer Uses
Electrical and electronic products
Fuels and related products
Paints and coatings
Plastic and rubber products not covered elsewhere
Water treatment products
Industry Processing Sectors
Adhesive manufacturing
All other basic organic chemical manufacturing
All other chemical product and preparation manufacturing
Electrical equipment, appliance, and component manufacturing
Oil and gas drilling, extraction, and support activities
Paint and coating manufacturing
Petrochemical manufacturing
Plastic material and resin manufacturing
Plastics product manufacturing
Rubber product manufacturing
Services
USES
-For TBHP-70-AQ (USEPA/OPP Pesticide Code: 105301) there are 0 labels match.
-Catalyst in polymerization reactions. To introduce peroxy group into organic molecules, in radical substitution reactions.
-Polymerization, oxidation, sulfonation catalyst, bleaching, deodorizing
-TBHP-70-AQ is used as an oxidant in the Halcon process for the production of propylene oxide. The standard commercial product (80%, stabilized with water and phosphoric acid) is suitable for curing polyester resins and for the emulsion polymerization of styrene -butadiene rubbers.
Description
TBHP-70-AQ is an organic peroxide widely used in a variety of oxidation processes.
Chemical Properties
TBHP-70-AQ is a water-white liquid commonly commercially available as a 70% solution in water; 80% solutions are also available.
TBHP-70-AQ is used to initiate polymerization reactions and in organic syntheses to introduce peroxy groups into the molecule.
TBHP-70-AQ vapor can burn in the absence of air and may be flammable at either elevated temperature or at reduced pressure. Fine mist/spray may be combustible at temperatures below the normal flash point. When evaporated, the residual liquid will concentrate TBHP content and may reach an explosive concentration (＞90%). Closed containers may generate internal pressure through the degradation of TBHP to oxygen .
TBHP-70-AQ is a highly reactive product. The three types of significant physical hazards are flammability, thermal, and decomposition due to contamination. To minimize these hazards, avoid exposure to heat, fire, or any condition that will concentrate the liquid material. Store away from heat, sparks, open flames, foreign contaminants, combustibles, and reducing agents. Inspect containers frequently to identify bulges or leaks (7a, 125).
Uses
TBHP-70-AQ is used to initiate polymerization reactionsand in organic syntheses to introduce peroxygroups into the molecule.
Uses
Catalyst in polymerization reactions. To introduce peroxy group into org molecules, in radical substitution reactions: Kharasch, Fono, J. organic. Chem. 23, 325 (1948); see also Kharasch, Sosnovsky, Tetrahedron 3, 97, 105 (1958).
Uses
TBHP-70-AQ is an intermediate in the production of propylene oxide and t-butyl alcohol from isobutane and propylene.
TBHP-70-AQ is primarily used as an initiator and finishing catalyst in the solution and emulsion polymerization methods for polystyrene and polyacrylates. Other uses are for the polymerization of vinyl chloride and vinyl acetate and as an oxidation and sulfonation catalyst in bleaching and deodorizing operations.
TBHP-70-AQ is a strong oxidant and reacts violently with combustible and reducing materials, and metallic and sulfur compounds.
Uses
TBHP-70-AQ is used as an initiator for radical polymerization and in various oxidation process such as sharpless epoxidation.
TBHP-70-AQ is involved in osmium catalyzed vicinal hydroxylation of olefins under alkaline conditions. Furthermore, it is used in catalytic asymmetric oxidation of sulfides to sulfoxides using binaphthol as a chiral auxiliary and in the oxidation of dibenzothiophenes.
TBHP-70-AQ plays an important role for the introduction of peroxy groups in organic synthesis.
Definition
ChEBI: An alkyl hydroperoxide in which the alkyl group is tert-butyl.
TBHP-70-AQ is widely used in a variety of oxidation processes.
Production Methods
TBHP-70-AQ is produced by the liquid-phase reaction of isobutane and molecular oxygen or by mixing equimolar amounts of t-butyl alcohol and 30–50% hydrogen peroxide.
TBHP-70-AQ can also be prepared from t-butyl alcohol and 30% hydrogen peroxide in the presence of sulfuric acid or by oxidation of tert-butylmagnesium chloride. The manufacturing process of TBHP is in a closed system.
General Description
Watery odorless colorless liquid. Floats and mixes slowly with water.
About this substance
Helpful information
TBHP-70-AQ is registered under the REACH Regulation and is manufactured in and / or imported to the European Economic Area, at ≥ 100 000 to < 1 000 000 tonnes per annum.
TBHP-70-AQ is used in formulation or re-packing, at industrial sites and in manufacturing.
Consumer Uses
ECHA has no public registered data indicating whether or in which chemical products the substance might be used. ECHA has no public registered data on the routes by which TBHP-70-AQ is most likely to be released to the environment.
Article service life
ECHA has no public registered data on the routes by which TBHP-70-AQ is most likely to be released to the environment. ECHA has no public registered data indicating whether or into which articles the substance might have been processed.
Widespread uses by professional workers
ECHA has no public registered data indicating whether or in which chemical products the substance might be used. ECHA has no public registered data on the types of manufacture using TBHP-70-AQ. ECHA has no public registered data on the routes by which TBHP-70-AQ is most likely to be released to the environment.
Formulation or re-packing
ECHA has no public registered data indicating whether or in which chemical products the substance might be used. Release to the environment of TBHP-70-AQ can occur from industrial use: formulation of mixtures.
Uses at industrial sites
TBHP-70-AQ is used in the following products: polymers.
TBHP-70-AQ is used in the following areas: formulation of mixtures and/or re-packaging.
TBHP-70-AQ is used for the manufacture of: chemicals.
Release to the environment of TBHP-70-AQ can occur from industrial use: as an intermediate step in further manufacturing of another substance (use of intermediates) and as processing aid.
Manufacture
Release to the environment of TBHP-70-AQ can occur from industrial use: manufacturing of the substance.
TBHP-70-AQ is the organic compound with the formula (CH3)3COOH.
TBHP-70-AQ is a hydroperoxide, in fact one of the most widely used in a variety of oxidation processes, for example the Halcon process.
TBHP-70-AQ is normally supplied as a 69–70% aqueous solution. Compared to hydrogen peroxide and organic peracids, tert-butyl hydroperoxide is less reactive, more soluble in organic solvents. Overall, it is renowned for the convenient handling properties of its solutions.
TBHP-70-AQs solutions in organic solvents are highly stable.
Application
Industrially, tert-butyl hydroperoxide is used to prepare propylene oxide. In the Halcon process, molybdenum-based catalysts are used for this reaction:
(CH3)3COOH + CH2=CHCH3 → (CH3)3COH + CH2OCHCH3
The byproduct t-butanol, which can be dehydrated to isobutene and convert to MTBE.
On a much smaller scale, tert-butyl hydroperoxide is used to produce some fine chemicals by the Sharpless epoxidation.
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
GROUPS / USES
Chemical Synthesis, Industrial Chemicals, Catalysts, Oxidizer, Polymers
IUPAC names
2-hydroperoxy-2-methylpropane
2-methylpropane-2-peroxol
t-Butyl hydroperoxide
Tert-butyl hydroperoxide
tert-Butyl hydroperoxide
tert-butyl hydroperoxide
SYNONYMS:
1,1-Dimethylethyl hydroperoxide
200-915-7 [EINECS]
2-Hydroperoxy-2-methylpropane
2-Methyl-2-propanyl hydroperoxide [ACD/IUPAC Name]
2-Methyl-2-propanylhydroperoxid [German] [ACD/IUPAC Name]
2-methylpropane-2-peroxol
75-91-2 [RN]
Hydroperoxide, 1,1-dimethylethyl [ACD/Index Name]
Hydroperoxide, 1,1-dimethylethyl (9CI)
Hydroperoxyde de 2-méthyl-2-propanyle [French] [ACD/IUPAC Name]
Kayabutyl H
MFCD00002130 [MDL number]
Perbutyl H 69T
Perbutyl H 80
tbhp
tBuOOH
t-butyl hydroperoxide
t-butylhydroperoxide
t-butyl-hydroperoxide
tert-Butyl hydroperoxide [Wiki]
tert-butylhydrogenperoxide
tert-Butyl-hydroperoxide
TERT-BUTYLHYDROPEROXIDE
Trigonox A-W 70
[540-80-7]
1,1-Dimethylethyl hydroperoxide; 2-Hydroperoxy-2-methylpropane; tert-Butyl hydroperoxide solution; TBHP
1,1-Dimethylethylhydroperoxide
1209339
208-757-0 [EINECS]
2-hydroperoxy-2-methyl-propane
2-Methyl-prop-2-yl-hydroperoxide
