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6 Ιουλ 2023 · 3.1 The pH level of a carbon black is known to affect the vulcanization of some rubber compounds. Scope 1.1 These test methods, Test Method A—Boiling Slurry and Test Method B—Sonic Slurry, are used to indicate the pH of the carbon black surface by measuring the pH of water in contact with the carbon black.
In aqueous dispersions, carbon black can show basic or acidic pH values and a good correlation exists between the oxygen content of carbon black and pH, with it being the higher the more acidic is the measured pH. 7 Basic pH of carbon black with low oxygen content can be ascribed to the presence of basic surface oxides, although the π electron ...
2 Φεβ 2021 · Carbon Black pH Value 1 This standard is issued under the Þxed designation D1512; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.
Some typical properties are: density 1.7-1.9 g/cm 3; pH of water suspension 2–8; primary particle size 14–250 nm; oil absorption 50–300 g/100 g; specific surface area 7–560 m 2 /g. Carbon blacks are obtained by pyrolysis or combustion of hydrocarbon-containing materials (hydrocarbon gases, viscous residual aromatic hydrocarbons).
Determination of pH in carbon black. Fast, accurate pH measurement in carbon black for battery cathodes according to ASTM D1512, ISO 787-9, and GB/T 1717. Summary. Conductive carbon black is an essential additive in modern lithium-ion batteries.
1 Δεκ 2015 · Standard Test Methods for Carbon Black—pH Value. These test methods, Test Method A—Boiling Slurry and Test Method B—Sonic Slurry, are used to indicate the pH of the carbon black surface by measuring the pH of water in contact with the carbon black....
1 Μαΐ 2021 · Standard Test Methods for Carbon Black—pH Value. 1.1 These test methods, Test Method A—Boiling Slurry and Test Method B—Sonic Slurry, are used to indicate the pH of the carbon black surface by measuring the pH of water in contact with the carbon...
