Dinonylnaphthylsulfonic acid

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Structural formula
Structure of Dinonylnaphthylsulfonic Acid
Mixture of several isomeric compounds
General
Surname Dinonylnaphthylsulfonic acid
other names
  • DINNSA
  • Di (nonyl) naphthylsulfonic acid
Molecular formula C 28 H 44 O 3 S
Brief description

dark colored, viscous liquid

External identifiers / databases
CAS number 25322-17-2
EC number 246-841-9
ECHA InfoCard 100,042,569
PubChem 93829
Wikidata Q411477
properties
Molar mass 460.7 g mol −1
Physical state

liquid

solubility

almost insoluble in water

Refractive index

1.465 (20 ° C)

safety instructions
GHS labeling of hazardous substances
05 - Corrosive 07 - Warning

danger

H and P phrases H: 315-318
P: ?
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

Dinonylnaphthylsulfonic acid is a mixture of several synthetically produced, isomeric chemical compounds . All of them are aromatic sulfonic acids . The mixture is an antistatic and is used as an additive in lubricants and kerosene ( Jet A-1 ).

presentation

Dinonylnaphthylsulfonic acid is produced from naphthalene , which is first alkylated with nonene to dinonylnaphthalene and then sulfonated to the end product .

use

Like the two alkaline earth metal salts barium and calcium dinonylnaphthylsulphonate, dinonylnaphthylsulphonic acid is used in a variety of ways as an additive in lubricants (such as lubricants or cooling lubricants ), industrial paints and rust inhibitors . Typically, proportions of 0.5 to 3 percent by weight are added. The aircraft kerosene Jet A-1 contains it as a conductivity improver (antistatic) in quantities of 1–3 mg / l.

Individual evidence

  1. a b c High Production Volume (HPV) Challenge Program Test Plan and Data Review: Dinonylnaphthalene Category (PDF; 238 kB) of the EPA from December 2004.
  2. a b Datasheet Dinonylnaphthalenesulfonic acid solution, 50 wt.% In heptane from Sigma-Aldrich , accessed on February 10, 2012 ( PDF ).
  3. Template: CL Inventory / not harmonized There is not yet a harmonized classification for this substance . A labeling of dinonylnaphthalenesulphonic acid in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on November 1, 2016, is reproduced from a self-classification by the distributor .
  4. Written questions with the answers received from the federal government in the week of April 26, 2011 (PDF; 1.35 MB). German Bundestag, 17th electoral term, printed matter 17/5675, April 29, 2011, p. 36.