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  2. Bromochlorobenzene - Wikipedia

    en.wikipedia.org/wiki/Bromochlorobenzene

    1-bromo-4-chlorobenzene Molecular formula: BrC 6 H 4 Cl Molar mass: 191.45 g/mol CAS number: 694-80-4: 108-37-2: 106-39-8: ChemSpider: 12230: 13875377: 7518: PubChem CID: 12754: 7928: 7806: Properties Melting point: −13 °C (260 K) −22 °C (251 K) 63–67 °C (336–340 K) Boiling point: 203–205 °C (476–478 K) 195–196 °C (468–469 ...

  3. Tire code - Wikipedia

    en.wikipedia.org/wiki/Tire_code

    Prior to 1964, tires were all made to a 90% aspect ratio. Tire size was specified as the tire width in inches and the diameter in inches – for example, 6.50-15. [29] From 1965 to the early 1970s, tires were made to an 80% aspect ratio. Tire size was again specified by width in inches and diameter in inches.

  4. Styrene-butadiene - Wikipedia

    en.wikipedia.org/wiki/Styrene-butadiene

    In 2012, more than 5.4 million tonnes of SBR were processed worldwide. [2] About 50% of car tires are made from various types of SBR. The styrene/butadiene ratio influences the properties of the polymer: with high styrene content, the rubbers are harder and less rubbery. [ 3 ]

  5. ISO 5775 - Wikipedia

    en.wikipedia.org/wiki/ISO_5775

    The inner width of the rim on which the tire is mounted should be about 65% of the tire's nominal section width for tires smaller than 30 mm and 55% for those larger. The section height of a tire is usually identical to its section width (for tires less than 28 mm, 2.5 mm have to be added to the width to get the height).

  6. Wheel sizing - Wikipedia

    en.wikipedia.org/wiki/Wheel_sizing

    Modern road tires have several measurements associated with their size as specified by tire codes like 225/70R14. The first number in the code (e.g., "225") represents the nominal tire width in millimeters. This is followed by the aspect ratio (e.g.,"70"), which is the height of the sidewall expressed as a percentage of the nominal tire width.

  7. Contact patch - Wikipedia

    en.wikipedia.org/wiki/Contact_patch

    Colorized tire footprint pressure distribution. The contact patch is the portion of a vehicle's tire that is in actual contact with the road surface.It is commonly used in the discussion of pneumatic (i.e. pressurized) tires, where the term is used strictly to describe the portion of the tire's tread that touches the road surface.

  8. Phenylsilane - Wikipedia

    en.wikipedia.org/wiki/Phenylsilane

    Phenylsilane is produced in two steps from Si(OEt) 4. In the first step, phenylmagnesium bromide is added to form Ph−Si(OEt) 3 via a Grignard reaction. Reduction of the resulting Ph−Si(OEt) 3 product with LiAlH 4 affords phenylsilane. [2] Ph−MgBr + Si(OEt) 4 → Ph−Si(OEt) 3 + MgBr(OEt) 4 Ph−Si(OEt) 3 + 3 LiAlH 44 Ph−SiH 3 + 3 ...

  9. Butyl rubber - Wikipedia

    en.wikipedia.org/wiki/Butyl_rubber

    Polyisobutylene, also known as "PIB" or polyisobutene, (C 4 H 8) n, is the homopolymer of isobutylene, or 2-methyl-1-propene, on which butyl rubber is based. Butyl rubber is produced by polymerization of about 98% of isobutylene with about 2% of isoprene.

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