Dinonylnaphthylsulfonic acid

Structural formula
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 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. ↑ 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.