Source on Phthalate Di-butyl phthalate - GreenFacts
How is DBP used? 3. Can DBP affect the environment? 3.1 What happens to DBP released to the environment? 3.2 When is DBP released? 3.3 What levels of DBP are expected near the sources? 3.4 What are the effects of DBP on the environment? 3.5 What are the risks of DBP to the environment? 4. How can humans be exposed to DBP? 4.1 How can workers be
2. How is DBP used? - greenfacts.org
Production has been steadily decreasing during the 1990’s. Over 75% of DBP is used as a plasticizer in polymers such as PVC, 14% is used in adhesives, 7% in printing inks and 3% in other miscellaneous uses, including sealants and grouting agents used in construction as well as consumer products such as cosmetics.
Dibutyl phthalate
DBP is an important plasticizer that enhances the utility of some major engineering plastics, such as PVC. Such modified PVC is widely used in plumbing for carrying sewerage and other corrosive materials. [3] Degradation [ edit] Hydrolysis of DBP leads to phthalic acid and 1-butanol. [4] Monobutyl phthalate (MBP) is its major metabolite. [5]
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From Wikipedia, the free encyclopedia Dibutyl phthalate (DBP) is an organic compound which is commonly used as a plasticizer because of its low toxicity and wide liquid range. With the chemical formula C 6 H 4 (CO 2 C 4 H 9) 2, it is a colorless. Get Inquiry
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- What is DBP used for?
- Production has been steadily decreasing during the 1990’s. Over 75% of DBP is used as a plasticizer in polymers such as PVC, 14% is used in adhesives, 7% in printing inks and 3% in other miscellaneous uses, including sealants and grouting agents used in construction as well as consumer products such as cosmetics.
- How is di-n-butyl phthalate (DBP) produced?
- DBP is produced by the reaction of phthalic anhydride with n-butanol in the presence of concentrated sulphuric acid as a catalyst. Excess alcohol is recovered and recycled and the di-n-butyl phthalate is purified by vacuum distillation and/or activated charcoal.
- How many producers of DBP are there in the EU?
- There are currently 3 producers of DBP in the European Union. The estimated production in the European Union was around 26 000 tonnes in 1998, over two-thirds of which was used in the EU. Production has been steadily decreasing during the 1990’s.
- How much phthalic anhydride (DBP) is produced a year?
- There is a clear decreasing trend in the production of DBP: 49,000 t/a (1994) – 37,000 t/a (1997) – 26,000 t/a (1998). The production (>1,000 tonnes) of DBP in 1998 was located at three production sites in the EU. DBP is produced by the reaction of phthalic anhydride with n-butanol in the presence of concentrated sulphuric acid as a catalyst.
