anhydride


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anhydride

 [an-hi´drīd]
a compound derived from a substance, usually an acid, by removal of a molecule of water.

an·hy·dride

(an-hī'drīd),
An oxide that can combine with water to form an acid or that is derived from an acid by the abstraction of water.

an·hy·dride

(an-hī'drīd)
An oxide that can combine with water to form an acid or that is derived from an acid by the abstraction of water.
References in periodicals archive ?
The Eterindo Group, which operate factories producing DOP, synthetic resin, specialty plasticizers and phthalic anhydride (PA) has to given up the majority control in three subsidiaries after having to convert debt amounting to US$ 215 million into shares under a debt to equity swap.
Until now, all water-based formulations using styrene-maleic anhydride resins have solubilized the resins by converting to their carboxylic acid salts.
Jaka Lelana, Plant Director at Petrowidada, expressed his satisfaction with the new catalyst, stating, Given the scale of our phthalic anhydride business, efficiency is key to our continued success.
Phthalic Anhydride is used for manufacturing unsaturated polyester resins (UPR) which are generally blended together with glass fibers for producing fiberglass-reinforced plastics.
Headquartered in Houston, TX, with plant operations in Pasadena, TX, GBC was a manufacturer of maleic anhydride derivatives and provides a range of contract manufacturing, warehouse and transportation services for a range of industrial end markets.
In yet another intelligence based operation, ANF Quetta seized an unattended Zamyad Iranian Single Cabin in mountainous area of Grog Nullah near Turbat City, District Kech and recovered 2520 liters Acetic Anhydride from the it.
The objectives of the operation include practical implementation of anti-trafficking techniques specifically those aimed at precursors, effective use of specialized equipment/techniques for tests as highlighted in standard operating procedures by the concerned authorities, mapping of licit trade in the designated substances, streamlining and improvement of intelligence sharing on seizures of chemicals, establishing risk indicators by stopping shipments and risk profiling of the Acetic Anhydride, Acetyl Chloride, Acetic Acid and Ammonium Chloride.
He said that since no one turned up for the clearance of the container, the physical examination of the consignment was carried out on Jan 31, 2018, in the presence of representatives of the terminal operator and independent surveyors which led to the recovery of over 15,520 litres of highly dangerous dual use precursor 'Acetic Anhydride' and 2,480 litres summer fluid.
Model Customs Collectorate (MCC) Port Mohammad Bin Qasim claim to has seized a huge quantity of 15,520 liters equivalent to 16.7 metric tons of acetic anhydride, a major component of improvised explosive devices (IEDs) and also used in illicit manufacturing of heroin.
The officials have drawn the samples from the plastic cans in the presence of senior Customs officials and tested with the help of 'First Defender Kit' to verify the contents which confirmed that the detected item was 'Acetic Anhydride.'
Inside, powdery substance with a specific smell of acetic anhydride (heroin) weighing 5 grams was found.
San Francisco, CA, July 16, 2014 --(PR.com)-- The global market for phthalic anhydride is expected to reach USD 10,387.5 million by 2020, according to a new study by Grand View Research, Inc.