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Standard Test Method for Active Matter in Anionic Surfactants by Potentiometric Titration
Automaticky preložený názov:
Štandardná skúšobná metóda pre aktívny hmoty v aniónové povrchovo aktívne látky potenciometrickou titráciou
NORMA vydaná dňa 1.10.2009
Označenie normy: ASTM D4251-89(2009)
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.10.2009
Kód tovaru: NS-26580
Počet strán: 4
Približná hmotnosť: 12 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
active matter, anionic surfactants, titration, Active ingredients (in detergents), Alkylbenzene compounds, Anionic surfactants, Detergent materials/systems--synthetic, Potentiometric titration, Surfactants, Titration, ICS Number Code 71.100.40 (Surface active agents)
Significance and Use | ||||||||||
Anionic surfactants are the most widely used of the synthetic detergents. ASTM methods in current use for their determination involve two-phase aqueous/chloroform titrations with the organic dyes methylene blue (Test Method D1681) or disulphine blue/dimidium bromide (Test Method D3049) as indicators. One advantage of the potentiometric method is that it eliminates the use of chloroform whose use is restricted for environmental and toxicological reasons. This test method is intended for use as described in 1.1. |
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1. Scope | ||||||||||
1.1 This test method describes a potentiometric titration procedure for determining the anionic active matter in detergents. It is intended for the analysis of anionic surfactants such as detergent range alkylbenzenesulfonates, α-olefin sulfonates, alcohol sulfates, and alcohol ethosulfates. It has not been tested for surfactant formulations. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 This standard
does not purport to address all of the safety concerns, if any,
associated with its use. It is the responsibility of the user of
this standard to establish appropriate safety and health practices
and determine the applicability of regulatory limitations prior to
use. Material Safety Data Sheets are available
for reagents and materials. Review them for hazards prior to
usage. |
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2. Referenced Documents | ||||||||||
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26.5.1989
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1.1.2014
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1.10.2009
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1.10.2009
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1.10.2009
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