2.5-Di-tert-butylhydroquinone

Properties of  DTBHQ

Chemical Name:2,5-Di-tert-butylhydroquinone (Di-tert-butylhydroquinone)

English Name: 2,5-Di-tert-butylhydroquinone(DTBHQ)

Constitution Expression:

Molecular Constitution: C₁₄H₂₂O₂

Molecular Weight: 222.33

Category: Poly-phenol

Physical Properties: White or slightly white crystal powder. Slight smell, non-poisoning. Contents of the main composition ≥98%

Relative density: 1.09.

Fusing point: 212-218.

Solubility(g/100g solvent, 25): Ethanol 35.1, Acetone 39.0, Ethyl acetate 48.8, Benzene 1.5. Hard to dissolved in gasoline and insoluble in water. Colorless, non-polluting and easy decentralization.

Four Functional Advantages of DTBHQ

Ø         Superior Anti-oxygenation Properties

DTBHQ is superior in anti-oxygenation properties with excellent light stabilization. It can be easily decentralized in polymers with no impact on sulfurization. The anti-oxygenation and anti-aging functions are equivalent to or better than the commonly used industrial antioxidants 1010, 4010NA, 264, etc.. It can be used as light-stabilizer in coatings, paintings, etc..

Ø         Outstanding Security

As a non-poisoning, odorless and colorless antioxidant, DTBHQ is highly safe with no pollution to the products and environment. DTBHQ has been proved to be a non-poisoning material through toxicity tests, for the white mices LD₅₀10.0g/kg, being outstanding security (It is generally stipulated that the materials are non-poisoning when LD₅₀≥2.0g/kg).

Ø         Excellent Stability

DTBHQ has a fusing point of 212-218 and a boiling point of 313 with excellent thermo-stability, compatibility, high extraction resistance and low volatility. It can improve the thermo-stability, anti-weather property as well as tensile & elongation and fission prevention of various macromolecular materials.

Ø         Wide Range of Application

Due to its unique properties, DTBHQ is currently one of the most widely applied industrial antioxidants suitable for the majority of the organic macromolecular polymers.

. Scope of Application

As an antioxidant, antiager, polymerization inhibitor and light stabilizer, DTBHQ can be applied in the following materials and products.

Ø         Rubbers: Natural rubber (NR), Chloroprene rubber (CR), Acrylonitrile-butadiene rubber (NBR), Ethylene-propylene-diene copolymer (EPDM), cis-1,4-polybutadiene rubber (BP), Styrene butadiene rubber (SBR) etc..

Ø         Synthetic resins and plastics: Polyvinyl chloride (PVC), Polyethylene (PE), Polypropylene (PP), Polystyrene (PS), Polycarbonate (PC), ABS and cellulose resins etc..

Ø         It can be used in the coatings, paintings, adhesives, lubricants, engine oil, photosensitive materials etc..

Ø         It can also be used in latexes and medical components etc..

. Directions

DTBHQ can be used in the same ways as the commonly used antioxidants, antiagers, polymerization inhibitors and light stabilizers with the normal dosage range:0.1%-2%(better effects if used together with phosphate ester).

. Storage

It shall be sealed and stored in a dark, cool and dry place away from fire source. With damp-proof and heat protection, it is forbidden to put it with the corrosive and toxic materials during transportation and storage.

. Package

  It is packed in paper drums lined with plastic bags, and the net weight per drum is 25kg.