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  2. Crabtree's catalyst - Wikipedia

    en.wikipedia.org/wiki/Crabtree's_catalyst

    Crabtree's catalyst is an organoiridium compound with the formula [C 8 H 12 IrP(C 6 H 11) 3 C 5 H 5 N]PF 6. It is a homogeneous catalyst for hydrogenation and hydrogen-transfer reactions, developed by Robert H. Crabtree .

  3. Grubbs catalyst - Wikipedia

    en.wikipedia.org/wiki/Grubbs_catalyst

    Grubbs catalyst. Grubbs catalysts are a series of transition metal carbene complexes used as catalysts for olefin metathesis. They are named after Robert H. Grubbs, the chemist who supervised their synthesis. Several generations of the catalyst have also been developed. [1] [2] Grubbs catalysts tolerate many functional groups in the alkene ...

  4. Hydrogen peroxide contact solutions - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_peroxide_contact...

    The majority of hydrogen peroxide solutions are 3% hydrogen peroxide. [1] This enables the solution to break down any proteins that coat the contacts after a long period of use. Hydrogen peroxide is always used alongside a neutralizing product. [2] The intention is to prevent the hydrogen peroxide from contact with the eye, which could damage ...

  5. Hush-A-Phone Corp. v. United States - Wikipedia

    en.wikipedia.org/wiki/Hush-A-Phone_Corp._v...

    Hush-A-Phone v. United States, 238 F.2d 266 (D.C. Cir. 1956) was a seminal ruling in United States telecommunications decided by the D.C. Circuit Court of Appeals. Hush-A-Phone Corporation marketed a small, cup-like device which mounted on the speaking party's microphone, reducing the risk of conversations being overheard and increasing sound ...

  6. Hush-A-Phone - Wikipedia

    en.wikipedia.org/wiki/Hush-A-Phone

    Hush-A-Phone. The Hush-A-Phone was a device designed to attach to the transmitter of a telephone to reduce noise pollution and increase privacy. Sold by the Hush-A-Phone company, the device was frequently described in its commercial advertisements as "a voice silencer designed for confidential conversation, clear transmission and office quiet.

  7. Mobile phone accessories - Wikipedia

    en.wikipedia.org/wiki/Mobile_phone_accessories

    Chargers and external batteries. Micro-B USB plug. Mobile phone chargers have gone through a diverse evolution that has included cradles, plug-in cords and obscure connectors. However, devices built between 2010 and 2020 generally use micro-USB connectors, while newer devices tend to use USB-C. Apple devices often use proprietary connectors.

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