Detail of "56773-42-3"

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CAS Number:
56773-42-3
Name:
Heptadecafluorooctanesulfonic acid tetraethylammonium salt
Molecular Structure:
Formula:
C₈H₂₀N^.C₈F₁₇O₃S
Molecular Weight:
629.43
Deleted CAS:
83046-54-2
Synonyms:
Catalysts and chemical agents;Ethanaminium,N,N,N-triethyl-,salt with 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro- 1-octanesulfonic acid (1:1);Fluortensid FT 248;FT-248(Tetraethylammonium perfluorooctanesulfonate);FC-248(Tetraethylammonium perfluorooctanesulfonate);Tetranethylammonium Perfluorooctanesulphonate;Tetraethylaminonium Perfluoroocta-sulphonate;tetraethylammonium heptadecafluorooctanesulphonate;Tetraethylammonium Perfluoro-1-octanesulfonate;Tetraethylammonium perfluorooctanesulfonate;FT 248;Tetranethylammonium Perfluorooctanesulphonate(solid);Tetraethyl ammonium, perfluorooctanesulfonate;FC-248;Tetraethylammonium perfluorooctanesulfonate ( FT-248 );Tetraethylammonium-perfluoroctylsufonate;Tetraethylammonium-per-fluorooctylsulfonate;
EINECS:
260-375-3
Melting Point:
184-190 °C(lit.)
Hazard Symbols:
T
Risk Codes:
25
Safety:
45-28 Details
Transport Information:
UN 2811 6.1/PG 3

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Hyperfiltration of surfactants containing solutions from the plating industry: Hyperfiltration of surfactants containing solutions from the plating industry. Staude, E.; Assenmacher, W.; Hoffmann, H. (Inst. Tech. Chem., Univ. Essen, Essen 4300, Fed. Rep. Ger.). Desalination, 49(3), 321-33 (English) 1984. CODEN: DSLNAH. ISSN: 0011-9164. DOCUMENT TYPE: Journal CA Section: 60 (Waste Treatment and Disposal) Section cross-reference(s): 46, 55, 56 The hyperfiltration of chromic plating rinse water contg. tetraethylammonium perfluoroctanosulfonate [56773-42-3] was examd. using different annealed cellulose acetate membranes. At low concns. the surfactant influences the vol. flow more than the rejection. An effect of the electrolytes can be neglected at low concn. Increasing surfactant concn. as well as rising electrolyte concn. cause a remarkable drop of vol. flow and electrolyte rejection.

Practical experiences with the reduction of emissions and drag-out losses in the electroplating of chromium: Practical experiences with the reduction of emissions and drag-out losses in the electroplating of chromium. Klein, H. G.; Meussdoerffer, J. N.; Niederpruem, H. (Dtsch. Ges. Galvanotech., Bad Kissingen, Ger.). Galvanotechnik, 68(12), 1045-51 (German) 1977. CODEN: GVTKAY. ISSN: 0016-4232. DOCUMENT TYPE: Journal CA Section: 72 (Electrochemistry) The use of F-contg. surfactants in Cr electroplating baths, has advantages as well as disadvantages when thicker electroplates are required. The use of a new surfactant FT 248 [56773-42-3] is described. A foam layer is produced on the Cr plating bath which prevents the formation of chromic acid spray mist.