4-tert-Butylcatechol, short for TBC, is an important fine chemical
product. As polymerization inhibitor, it has quite well effect. It
is widely used in the production process and polymer monomer
storage and transportation process of olefin and polyolefine to
avoid autohemagglutination of active olefin. It is a new-style
polymerization inhibitor lately.
Chemical structural formula: Properties:Appearance: white or canary crystal; molecular weight:
166.21; Density d25601.049;Dissolving in methanol, alcohol,
benzene, toluol, acetone, etc. Slightly dissolving hot water, and
it is easy to be moisture absorption and oxidation. The color will
deepen after oxidation, but it will not influence using.2,Quality index: | Item | Index | Test method | TBC content % | ≥99 | Chromatography | Ash % | <0.2 | Chemical method | Melting point | 52-55 | | Appearance | White crystal powder | Eye measure |
3,Use:
TBC is widely used in the production process and polymer monomer
storage and transportation process of olefin and polyolefine, such
as ethylene production equipment, butadiene production equipment,
styrene production equipment, etc.
Using method:Dissolving TBC in relevant solvent and then use it.
Polymer unitTBC standard addition 110-6
Styrene10—50
Butadiene50—100
Isoprene150—300
Vinyltoluene30—50
Divinylbenzene1500—2000
Chloroprene100—150
Acrylonitrile50—100
4,Packing, storage, transportation and notice:
Packing: Steel drum lined with plastic foil and avoiding light
during storage and transportation. Stored cool and lightless place,
far from heat. Transport it as the rules of general chemicals. Liquid TBC product description
We the professional manufacturer of TBC. Apart from producing solid
TBC, we can customize liquid TBC for our customers with 3
configurations: 85% methanol solution, 45-50% alcohol solution and
92%liquid. After certification, it has obvious polymerization
inhibiting effect, and it becomes high efficiency polymerization
inhibitor.
The liquid TBC the derivative of Solid TBC with the same physical
properties as solid TBC. (It can be customized.
Chemical name:4-tert-Butylcatechol
Structural formula:
White or canary crystal; Melting point: 52-55℃; Density
d25601.049Boiling point (normal pressure): 285℃; Ignition point:
(ASTBD—92)168.2℃; Dissolving in water, acetone, methanol, aether,
benzene, carbon tetrachloride, styrene and inorganic sterols. The
reaction with iron or nickel sterol will make TBC black, but not
decompose. Quality standard:Executive Q/LYJH05—2005 Item | 85%methanol solution | 45-50%alcohol solution | 92% liquid | Appearance | Light yellow or black liquid | Light yellow or black liquid | Light yellow or black liquid | Moisture% | | ≤1.5 | ≤1.5 | TBC content % | 84—86 | 45—50 | 92 | Density 20℃g/cm3 | 1.01—1.06 | 0.8-1.00 | 1.0—1.070 | Constitution | TBC methanol | TBC alcohol | TBC solvent |
UseUse:It is the high efficiency polymerization inhibitor during
monomer distillation or storage or transportation of olefin. It is
especially for the monomer polymerization inhibiting of styrene,
butadiene and other olefins. It also can be used for chemical
inhibitor, pesticide and stabilizer.
Using method:(1) It can be used in the schizolysis of ethane; using
methanol for thinner, and dilute to the concentration of 50% and
dosage 30ppm.
(2) Using styrene. Make the 85% methanol solution TBC into 2%wt
solution by partial styrene.Packing,transportationstorage and
notice Packing:Plastic drum.
Transportation:Transport it as the transportation rules of general
rules. Pay attention to fire-proof, explosive-proof, water-proof
and pollution-proof.
Storage:Stored in the dry and ventilated warehouse.
Notice:Far from fire and heat. TBC has strong acrimony for skin,
and humid TBC will burn skin. Touching eye, use a great deal of
water to wash. Using powder extinguishing agent to put out the
fire. |
