Jefferson chemical
WHATS NEW or IMPROVED
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SURFONIC® Low Foaming Surfactants score well in C. S. M. A. Mechanical D i s h w a s h i n g T e s t s S U R F O N I C ® L F - 5 , L F - 6 and L F - 7 are ethyl•j
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ene oxide adducts that have been modified by terminating the polyoxyethylene chain with a group of hydrophobic character to reduce foaming. As part of our quality testing, the C.S.M.A. F mîng TeSt M S E S ' » " ? Î ? H ? T DiiWashi"g Machines has been carried out to evaluate the relative detergency performance of these low foaming surfactants in special built detergent formulations as compared with four popular com-
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Bllllir rnm aftâ,
Rotor, rpm. after
„ ,
,
4 minutes of Detergent wasl,cyc ! " Commercial Formula No. 1.. 114 S E \l'Z In cimS F Formu,a N0-.1·: III SURFONIC LF-5* 102 Commercial Formula ' No. 3 '.] 66 Commercial Formula No. 4 . . 65 *i n a built formulation consisting of
*»«E'*?S o f 5 glasses by
3evaiuators "wash^ 3.1 11 3.5 39 3.9 4.5 S U R F O N I C LF aftCf
mercial f o r m u l a t i o n s . T h e C . S . M . A . tests w e r e p e r f o r m e d in a h o m e
( 2 % ) , sodium metasilicate-pentahydrate (37%), sodium tripolyphosphate (41%), and sodium carbonate (20%).
dishwasher using built or commercial dishwasher • w U i n t l 0 n ^ 4 ° g ' ^ o l e o m a r g a r i n e a n d dry milk soil ( 4 0 g . ) , and hard water ( 3 0 0 ppm. h a r d n e s s ) . Results are summarized in the following table:
Average detergency ratings differing by ± 0 . 2 or greater are considered significant. Rotor speeds are also important in evaluating low foaming since they are governed by foam heights. T h e
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SURFONIC LF Surface-Acfive Agents SPECIFICATIONS LF-5
Appearance at 40°C. .,
LF-6
LF-7
Not more than trace turbidity
Cloud point, 1 % aqueous, ° C . .min.
45
34
29
max.
49
37
33
max.
100
100
100
Color, Pt-Co scale Odor at room temperature
Not objectionable
SELECT PROPERTIES LF-5
higher the rotor speed — the lower the foaming. From these results, formulated LF-7, LF-6 and Commercial Formula No. 1 are rated superior low foaming detergents. Formulated LF-5 and Commercial Formula No. 2 exhibit moderate foam and fair detergency, and Commercial For mulas No. 3 and No. 4 are relatively high foamers with lower detergency. The low foam and good surface properties of the SURFONIC LF series makes them useful in metal cleaning, textiles, paper, rinse aids, low foaming heavy-duty and all-purpose detergents. Let Jefferson's experienced technical representa tives help you apply these surfactants to your needs . . . Jefferson Chemical Company, Inc., 1121 Walker Avenue, P. O. Box 303, Houston I y Texas.
LF-6
LF-7 a
Foam height, Ross-Miles, 120°F. mm., initial, 0.1% . . . 13
2
0-1
mm., 5 min., 0 . 1 % . . . . . . . . . . . . 2
1
0
Refractive index, 20°C
1.4578
1.4569
1.4565
Specific gravity, 20/20°C
1.0073
1.0063
1.0068
Viscosity, 100°F., centistokes
48
58
67
Wetting time, Modified Draves, Tape, 1.5 g. hook, 25°C. 0 . 1 % , sec
1.8
2.1
2.2
J E ¥=¥= fE R S O N Γ^Γΐ Ι =* Λ 1 1 » * A 1 ^ H HOUSTON ·
NEW YORK
CHARLOTTE ·
·
CHICAGO ·
LOS ANGELES ·
CLEVELAND
SAN FRANCISCO Ô75
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