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  2. Echo and Narcissus - Wikipedia

    en.wikipedia.org/wiki/Echo_and_Narcissus

    Narcissus and Echo (45–79 AD), wall painting from Pompeii Echo and Narcissus (1903), a Pre-Raphaelite interpretation by John William Waterhouse Narcissus & Echo (2006–2022), a modern-day interpretation by David Revoy. Echo and Narcissus is a myth from Ovid's Metamorphoses, a Roman mythological epic from the Augustan Age.

  3. Prices of chemical elements - Wikipedia

    en.wikipedia.org/wiki/Prices_of_chemical_elements

    In the form of boric acid, price per boron contained. Min. 99% pure. 6: C: Carbon: 2.267: 200 (5.54 × 10 18 kg) 0.122: 0.28: 2018: EIA Coal [19] In the form of anthracite, price per carbon contained, assuming 90% carbon content. There is a wide variation of price of carbon depending on its form.

  4. Echo suppression and cancellation - Wikipedia

    en.wikipedia.org/wiki/Echo_suppression_and...

    The performance of an echo canceller is measured in echo return loss enhancement (ERLE), [3] [9] which is the amount of additional signal loss applied by the echo canceller. Most echo cancellers are able to apply 18 to 35 dB ERLE. The total signal loss of the echo (ACOM) is the sum of the ERL and ERLE. [9] [10]

  5. Emergency eyewash and safety shower station - Wikipedia

    en.wikipedia.org/wiki/Emergency_eyewash_and...

    In the United States, Occupational Safety and Health Administration (OSHA) regulations on emergency eyewash and shower station are contained in 29 C.F.R. 1910.151 (c), which provides that "Where the eyes or body of any person may be exposed to injurious corrosive materials, suitable facilities for quick drenching or flushing of the eyes and ...

  6. Nalco Champion - Wikipedia

    en.wikipedia.org/wiki/Nalco_Champion

    Nalco Champion was a supplier of specialty chemicals and related services to all areas of the petroleum industry. It had corporate offices in Houston and Sugar Land, Texas. It was a subsidiary of Ecolab.

  7. Clandestine chemistry - Wikipedia

    en.wikipedia.org/wiki/Clandestine_chemistry

    Items found at a meth production lab in Fitchburg, Massachusetts in 2009. Clandestine chemistry is chemistry carried out in secret, and particularly in illegal drug laboratories. Larger labs are usually run by gangs or organized crime intending to produce for distribution on the black market. Smaller labs can be run by individual chemists ...

  8. Defence Materials and Stores Research and Development ...

    en.wikipedia.org/wiki/Defence_Materials_and...

    "The Defence Material and Stores Research Development Establishment in Kanpur has developed a new NBC suit that would be proved effective against any kind of dangerous weapons or chemicals and protect soldiers from any sort of attack", DMSRDE Director Arvind Kumar Saxena was quoted by media-persons. 40,000 pieces of NBC suits costing about ...

  9. Tata Chemicals - Wikipedia

    en.wikipedia.org/wiki/Tata_Chemicals

    Since 2006, Tata Chemicals has owned Brunner Mond, a United Kingdom-based chemical company with operations in Magadi (Kenya) and General Chemicals, in United States of America. On 27 March 2008, Tata Chemicals Ltd acquired 100 per cent [ 9 ] [ 10 ] With all these acquisitions, combined capacity of production has increased to around 5.17 million ...

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