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  2. Carbon dioxide (data page) - Wikipedia

    en.wikipedia.org/wiki/Carbon_dioxide_(data_page)

    The solubility is given for "pure water", i.e., water which contain only CO 2. This water is going to be acidic. This water is going to be acidic. For example, at 25 °C the pH of 3.9 is expected (see carbonic acid ).

  3. EN 417 - Wikipedia

    en.wikipedia.org/wiki/EN_417

    Pierceable gas cylinder Gas cylinder with Lindal B188 valve.. EN 417 is a European Standard concerning non-refillable metallic cartridges for liquefied petroleum gases.The standard specifies material, construction, inspection and marking requirements for cartridges with or without a valve, for use with portable appliances which comply with the requirements of EN 521.

  4. Chemical cartridge - Wikipedia

    en.wikipedia.org/wiki/Chemical_cartridge

    A study [27] showed that on average 95% of a group of people have an individual threshold of olfactory sensitivity in the range of from 1/16 to 16 from the mean. This means that 2.5% of people will not be able to smell harmful gases at a concentration 16 times greater than the average threshold of perception of a smell.

  5. Carbon price - Wikipedia

    en.wikipedia.org/wiki/Carbon_price

    Recent policy changes have led to a steep increase of the carbon price since 2018, exceeding 100€ ($118) per ton of CO 2 in February 2023. [8] Evaluations of 21 carbon pricing schemes, show that at least 17 of these have caused reductions in greenhouse gas emissions. The achieved emissions reductions range between 5% and 21% for the studied ...

  6. Liquid carbon dioxide - Wikipedia

    en.wikipedia.org/wiki/Liquid_carbon_dioxide

    Jets of liquid carbon dioxide. Liquid carbon dioxide is the liquid state of carbon dioxide (CO 2), which cannot occur under atmospheric pressure.It can only exist at a pressure above 5.1 atm (5.2 bar; 75 psi), under 31.1 °C (88.0 °F) (temperature of critical point) and above −56.6 °C (−69.9 °F) (temperature of triple point). [1]

  7. Halfords - Wikipedia

    en.wikipedia.org/wiki/Halfords

    In November 2019, Halfords acquired McConechy’s garages in Scotland [15] and Tyres on the Drive mobile tyre fitting service. [16] In March 2021, the business acquired Universal Tyres and Garages. [17] In December 2021, Halfords acquired rival tyres and auto-care chain National Tyres and Autocare for £62m. [18]

  8. E-diesel - Wikipedia

    en.wikipedia.org/wiki/E-diesel

    In future designs, [11] [12] the oxygen by-product may be combined with renewable natural gas in the oxidative coupling of methane to ethylene: [13] [14] 2 CH 4 + O 2 → C 2 H 4 + 2 H 2 O. The reaction is exothermic (∆H = -280 kJ/mol) and occurs at high temperatures (750–950 ˚C). [15]

  9. CO2 rocket - Wikipedia

    en.wikipedia.org/wiki/CO2_rocket

    A carbon dioxide rocket (CO 2 rocket) is a type of rocket that uses carbon dioxide as a propellant. [1] It should be fired outdoors. [2]Carbon dioxide rocket (slurry, hybrid, etc.) can be used in model rocketry, where it is also known as a pop rocket. [3]

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