Liquid lavatory cleansing and sanitizing composition

A phosphate-free liquid lavatory cleansing and sanitizing composition for use in a metering composition comprising a nonionic or anionic detergent-iodine complex, a nonionic or anionic surfactant in an amount to provide a monomer to micelle ratio of about 90:10 to 40:60, a water-soluble acid dye and water.

FIELD OF THE INVENTION 
The present invention relates to non-toxic phosphate-free liquid cleansing 
and sanitizing compositions which are useful for the treatment of the 
flush water of toilets. More particularly, the invention is concerned with 
a halophor-containing liquid composition which is metered out in response 
to the flushing of the toilet and produces a color which indicates the 
presence of the halophor. 
BACKGROUND OF THE INVENTION 
In treating toilet flush water with chemicals so as to produce desirable 
effects such as bowl aesthetics, cleaning, disinfection, deodorization, 
etc., it is desirable that the chemicals be dispensed into the flush water 
automatically each time the toilet is flushed. The prior art discloses 
numerous solid lavatory cleansing blocks which have the capability of 
automatically dispensing metered amounts of chemicals to effect cleaning 
and sanitizing. However, prior to the present invention liquid cleaners 
which contain a halophor sanitizing agent have not been available that are 
responsive to flushing. 
Generally, the liquid cleansing compositions which are presently available 
do not contain a sanitizing agent. Most prior art liquid cleaners merely 
contain surfactants, dyes, perfumes, and other fillers to provide cleaning 
and sudsing with an indicator. 
Automatically dispensed toilet bowl cleaning and/or sanitizing products, 
which contain dyes to provide a visual signal to the user that the product 
is being dispensed, are well known. Such products are sold in the United 
States under the brand names VANISH AUTOMATIC (Drackett Products), 
TY-D-BOL AUTOMATIC (Kiwi Brands, Inc.) and SANIFLUSH AUTOMATIC 
(Boyle-Midway). None of these products contains an iodophor sanitizing 
agent and all of them provide a color to the bowl water which persists 
between flushings. U.S Pat. No. 3,504,384, Radlevy et al, issued Apr. 7, 
1970, discloses a dual compartment dispenser for automatically dispensing 
a hypochlorite solution and a surfactant/dye solution to the toilet bowl 
during flushing. The dye which is taught in the patent is Disulfide Blue 
VN150. This dye is resistant to oxidation to a colorless state by 
hypochlorite; thus, it provides a persistent color to the toilet bowl 
water, even in the presence of the hypochlorite. 
In order to meet the Environmental Protection Agency's efficacy data 
requirements for in-tank sanitizer products claims for effectiveness, it 
is necessary that the user be able to determine the product effectiveness. 
That is, the color indicator must show that the sanitizing ingredient is 
still present in a sanitizing amount. Consequently, it is essential that 
the sanitizing agent have the same life in the sanitizing product as the 
color indicator. 
The use of chloride or hypochloride ion as the sanitizing agent has the 
disadvantage that most dyes are oxidized to a colorless state and there is 
no visual indication that the sanitizing agent is active and working in 
the toilet bowl. 
The use of iodine-containing formulations have been previously considered 
as sanitizing agents for toilets because of their greater sanitizing 
capabilities than chlorine-containing agents. However, the 
iodine-containing agents have not been previously employed in automatic 
dispensing liquid toilet compositions because they yield an unacceptable 
color in the toilet bowl. Also, prior to the present invention, phosphoric 
acid has been utilized in iodophor-containing cleansing compositions for 
stabilization. 
U.S. Pat. Nos. 3,728,449 and 4,207,310 disclose iodophors which may be used 
in the present invention. 
It is an object of the present invention to provide a liquid lavatory 
cleansing and sanitizing composition containing halophors which are 
suitable for use automatically dispensing cleaning agents into the toilet. 
It is a further object of the present invention to provide a stable 
composition for use in metering the sanitizing effect of the iodine 
released in liquid iodophor-containing lavatory cleansing compositions. 
It is a still further object of the present invention to provide a liquid 
lavatory cleaning composition wherein there is a synergistic sanitizing 
effect together with a dye. 
SUMMARY OF THE INVENTION 
The present invention provides a non-toxic phosphate-free liquid lavatory 
cleansing and sanitizing composition which is suitable for use with a 
metering container. More particularly, the invention provides a liquid 
composition comprising 1) a nonionic or anionic detergent iodine complex 
or halophor in an amount so as to provide at least 0.2% by weight, 
preferably, about 0.4 to about 0.8% by weight of elemental iodine; 2) a 
nonionic or anionic surfactant in an amount to provide a monomer to 
micelle ratio of about 90:10 to 40:60, preferably about 60:40, 3) about 
0.5% to 10% of a water soluble acid dye, and 4) water. 
It has been found that the presence of phosphates, particularly phosphoric 
acid, is not required for the stability of the composition if the nonionic 
or anionic surfactant is present in an amount to provide a monomer to 
micelle ratio of about 90:10 to 40:60, preferably about 60:40. To arrive 
at the critical micelle concentration of the various surfactants which may 
be utilized, reference should be made, for example, to the article of John 
F. Scamehorn entitled "An Overview of Phenomena Involving Surfactant 
Mixtures", American Chemical Society, 1986, which is herein incorporated 
by reference. 
The compositions of this invention generally contain elemental iodine in an 
amount that usually does not exceed 1%, but is more generally in the range 
of 0.4% to 0.8% iodine. Higher amounts are not required to yield the 
desired biocidal effect and could interfere with the desired color. 
The compositions can optionally and advantageously, also include up to 
about 2% of at least one water-soluble iodide selected from the group 
consisting of hydrogen iodide and inorganic iodides, such as potassium 
iodide, sodium iodide or calcium iodide. Potassium iodide is preferred. 
An important attribute of the compositions of the invention is their 
sanitizing activity. It has been found that the new compositions possess a 
microbiocidal action against Staphylococcus aureus (ATCC-6538), Salmonella 
choleraesuis (ATCC-10708) and odor causing microorganisms Brevibacterium 
ammoniagenes (ATCC-6871) and Proteus Vulgaris (ATCC-8427). The 
microbiologic testing indicates that full germicidal activity of the 
iodophor is not modified by its combination into the new compositions. In 
fact, it has been surprisingly found that the use of the dye enhances the 
biocidal activity of the composition. 
It has been further found that methyl dimethyl propoxylene ammonium 
chloride is compatible in the present composition and can be incorporated 
therein to provide additional biocidal activity. An amount of up to 2% by 
weight, preferably 0.2-0.8%, may be utilized to achieve the desired 
effect. 
The compositions of the present invention have been found to be non-toxic 
when tested according to the method described in the New and Revised 
Health Effects Test Guidelines 1984, (PB84-233295), U.S. Department of 
Commerce, National Technical Information Service. 
Other objects and a more complete understanding of the invention will be 
had by referring to the following description, taken in conjunction with 
the accompanying drawings, in which:

DESCRIPTION OF THE PREFERRED EMBODIMENTS 
According to one embodiment of the invention, a liquid non-phosphate 
containing lavatory cleansing and sanitizing composition is provided for 
metering into a toilet bowl during flushing. The composition comprises an 
iodophor or a complex of a nonionic or anionic detergent and iodine in an 
amount to provide at least 0.2% by weight, preferably about 0.4 to about 
0.8% by weight of elemental iodine; a nonionic or anionic surfactant in an 
amount to result in an equilibrium of the surfactant of monomer to micelle 
in a ratio of about 90:10 to 40:60, preferably about 60:40; about 0.5% to 
10% of a water soluble acid dye and the remainder water. Optionally, other 
ingredients may be added such as a fragrance, perfume, or other biocidal 
agents, such as methyl dimethyl propoxylene ammonium chloride. 
A suitable composition in accordance with the invention comprises an amount 
of iodophor or detergent-iodine complex to provide about 0.4 to 0.8% by 
weight of elemental iodine. Utilizing a commercial product of West Agro 
Inc. sold under the name "Clean Front Concentrate" which is an 
alpha-(p-nonylphenyl)-omegahydroxypoly (oxyethylene)-iodine complex, the 
amount is about 1.9 to 4.0 percent by weight of composition. The amount of 
anionic or nonionic surfactant is generally about 2% to 8% by weight 
depending upon the surfactant and the iodophor utilized. The acid dye in 
the amount of about 0.5% to 10% provides a suitable color to the 
composition. The remainder of the ingredients is water and any optional 
materials that may be added. 
A typical product which will be utilized in a household comprises about 360 
g of composition per dispenser bottle. The amount is generally appropriate 
for 300 average flushes. There is generally about 18,925 g of dilution 
water per flush which amounts to 5,677,500 cc of water utilized with the 
product. In FIG. 3 there is shown that the surfactant concentration of a 
typical formulation yields monomers in solution since the product is below 
the Critical Micelle Concentration for the surfactants employed. The total 
surfactant concentration based o the iodophor is about 70%. 
Surfactants in aqueous solutions generally exist in a state of equilibrium 
between micelles and a monomeric state. The monomer-micelle equilibria is 
dictated by the tendency of the surfactant components to form micelles and 
the interaction between surfactants in the micelle. The Critical Micelle 
Concentration (CMC) is the lowest surfactant concentration at which 
micelles form. The lower the Critical Micelle Concentration, the greater 
the tendency of the system to form micelles. The Critical Micelle 
Concentration is the concentration at which the micelles make this first 
appearance. 
In situations where a quantitative estimate of the amount or concentration 
of micelles is desired, for example, in estimating solubilizing powers, or 
the effect of micelle concentrations on the chemical reactivities of 
constituent monomers or solubilized species, an area of research which is 
of considerable current interest, the CMC serves the purpose of giving a 
rough estimate of the monomer concentration in the solution. The micelle 
concentration in equivalents, therefore, can be closely approximated as 
the total concentration minus the CMC. 
The method of determining the Critical Micelle Concentration (CMC) of 
surfactants is disclosed in article of Mukerjee et al entitled "Critical 
Micelle Concentration of Aqueous Surfactant Systems", National Bureau of 
Standards publication N SRDS-NBS 36 (1971), which is herein incorporated 
by reference. One of the methods disclosed involves the measurement of 
surface tension such as by the du Nouy ring detachment method. 
Aqueous solutions of nonionic surfactants exhibit significantly lower 
surface tensions and consequently better wetting characteristics than 
water alone. In very dilute solutions, as surfactant concentration 
increases, surface tension decreases. This effect continues until a 
particular concentration is reached after which the surface tension 
remains nearly constant as surfactant concentration. This particular 
concentration is the "Critical Micelle Concentration" of the particular 
surfactant. 
Table I describes the surface tension of some commercially available 
ethoxylated non-ionic surfactants. 
TABLE I 
______________________________________ 
Concentration % weight 
Surface Tensions 
Dynes/cm @ 24.4 C. in water 
CMC 
Surfactant 0.0001 0.001 0.01 0.1 1.0 % wt 
______________________________________ 
NEODOL 91-6 
62 53 33 29 29 0.025 
NEODOL 91-8 
63 54 37 30 31 0.027 
NEODOL 23-6.5 
53 33 28 28 28 0.0017 
NEODOL 25-7 
51 32 30 30 30 0.0009 
NEODOL 25-9 
54 35 31 30 30 0.0018 
NEODOL 25-12 
59 39 34 34 34 0.0018 
NEODOL 45-7 
46 31 29 29 29 0.0004 
NEODOL 45-13 
50 41 36 34 33 0.006 
Linear 1012 
58 42 27 26 26 0.0035 
primary alcohol 
(5.2EO) 
Random 53 36 30 29 20 0.0025 
secondary 
alcohol (7EO) 
Nonylphenol 
57 42 32 32 32 0.0025 
(9EO) 
Octylphenol 
58 49 31 30 30 0.011 
(9.5EO) 
Linear 812 63 50 32 29 30 0.013 
primary alcohol 
EO/PO nonionic 
(HLB13) 
Tridecyl 56 42 27 27 27 0.0077 
alcohol ethoxylate 
(HLB 13.1) 
85% AM 
______________________________________ 
The class of iodophors or detergent-iodine complexes which are utilized in 
the present invention are iodine-synthetic detergent complexes such as 
prepared according to the process as disclosed in U.S. Pat. Nos. 2,977,315 
and 4,271,149. The synthetic detergent can comprise one or more nonionic 
and/or anionic surface active agents having strong detergent and wetting 
properties. 
The nonionic carriers suitable for use in the compositions include all of 
the known nonionic carriers or complexing agents for iodine, but the 
preferred carriers are the ethoxylated nonionic detergent types which have 
been cleared for us in contact with food equipment. Suitable nonionic 
carriers include: 
a. alkyl phenol ethylene oxide condensates wherein the alkyl group contains 
8-12 carbon atoms and the condensate contains about 7-18 mols of ethylene 
oxide per mol of alkyl phenol. 
b. nonionics of the type disclosed in the U.S. Pat. No. 2,759,869 and 
generally embraced by the formula: 
EQU HO(C.sub.2 H.sub.4 O).sub.x (C.sub.3 H.sub.6 O).sub.y (C.sub.2 H.sub.4 
O).sub.x' --H 
wherein y equals at least 15 and (CH.sub.2 H.sub.4 O)-x+x' equals 20 to 90 
percent of the total weight of said compound. 
c. nonionics which are ethoxylated partial esters of fatty acids with sugar 
alcohols such as sorbitol and suitably those containing an average of 1-3 
ester groups and up 50 mols of ethylene oxide per molecule. 
d. butoxy derivatives of polypropylene oxide, ethylene oxide, block 
polymers having molecular weights within the range of about 2,000-5,000. 
e. nonionics represented by the formula: 
EQU (C.sub.n H.sub.2 n+1) C.sub.6 H.sub.4 (OCH.sub.2 CH.sub.2) 
where n equals at least 7 and (OCH.sub.2 CH.sub.2) equals 58 to 78 percent 
of the total weight of said component. 
f. poly(N-vinyl-2-pyrrolidone) (P.V.P.), and 
g. mixtures thereof. 
Typical nonionic carriers falling within these types which are commercially 
available, and some of which utilized in the examples hereinafter 
appearing, include the following nonionic detergents: 
"Igepal CO-630"=nonylphenol condensed with 9-10 moles of ethylene oxide 
"Igepal CO-710"=nonylphenol condensed with 10-11 moles of ethylene oxide 
"Igepal CO-730"=nonylphenol condensed with 15 moles of ethylene oxide 
"Pluronic L62"=25 to 30 moles of polyoxypropylene condensed with 8.5 to 
10.2 moles of ethylene oxide 
"Pluronic F68"=25 to 30 moles of polyoxypropylene condensed with 33 to 41 
moles of ethylene oxide 
"Pluronic P85"=36 to 43 moles of polyoxypropylene condensed with 48 to 52 
moles of ethylene oxide 
"Tween 21"=polyoxyethylene (4) sorbitan monolaurate "Tween 
40"=polyoxyethylene (20) sorbitan monopalimitate 
"Tergitol XH"=butoxy monoether of mixed (ethylene-propylene) polyalkylene 
glycol having a cloud point of 90-100.degree. C. and an average molecular 
weight of 3,300. 
Preferred nonionics are the water-soluble condensation products of 
aliphatic alcohols containing from 8 to 22 carbon atoms, in either 
straight chain or branched configuration, with from 9 to 15 moles of 
ethylene oxide per mole of alcohol. Particularly preferred are the 
condensation products of alcohols having an alkyl group containing from 
about 9 to 15 carbon atoms with from about 9 to 12 moles of ethylene oxide 
per mole of alcohol. 
The detergents or surfactants which form the iodophor can be the same or 
different from the surfactants which solubilize the iodophor. 
Among the suitable anionic surface active agents which can be used for the 
formation of iodophors or as solubilizers in accordance with the present 
invention are those represented by the formula: 
##STR1## 
wherein R is the radical C.sub.x H(2.sub.x 30 1) CO; x being an integer of 
from 5 to 17 and R' is selected from group consisting of hydrogen, 
(C.sub.1 -C.sub.4) alkyl and cyclohexyl radicals and Y is selected from 
the group consisting of salt-forming cations. The preferred anionic 
detergent compounds are of the well known groups of anionic surface active 
agents known as alkanoyl taurates and alkylaryl sulfonates such as alkyl 
benzene sodium sulfonate and alkyl naphthyl sodium sulfonate. A preferred 
anionic surfactant is sodium methyl cocoyltaurate. 
Other anionic surfactants suitable for use herein as solubilizers are the 
sodium alkyl glyceryl ether sulfonates, especially those ethers of higher 
alcohols derived from tallow and coconut oil; sodium coconut oil fatty 
acid monoglyceride sulfonates and sulfates; sodium or potassium salts of 
from about 1 to about 10 units of ethylene oxide per molecule and from 
about 8 to about 12 carbon atoms in the alkyl group; and sodium or 
potassium salts of alkyl ethylene oxide ether sulfates containing from 
about 1 to about 10 units of ethylene oxide per molecule and from about 10 
to about 20 carbon atoms in the alkyl group. 
Other useful anionic surfactants include the water soluble salts of esters 
of alpha-sulfonated fatty acids containing from about 6 to 20 carbon atoms 
in the fatty acid group and from about 1 to 10 carbon atoms in the ester 
group; water-soluble salts of 2-acyloxy-alkane-1-sulfonic acids containing 
from about 2 to 9 carbon atoms in the acyl group and from about 9 to 23 
carbon atoms in the alkane moiety; alkyl ether sulfates containing from 
about 10 to 20 carbon atoms in the alkyl group and from about 1 to 30 
moles of ethylene oxide; water-soluble salts of olefin sulfonates 
containing from about 12 to 24 carbon atoms; and beta-alkyloxy alkane 
sulfonates containing from about 1 to 3 carbon atoms in the alkyl group 
and from about 8 to 20 carbon atoms in the alkane moiety. 
Examples of suitable dyes are Alizarine Light Blue B (C.I.63010), Carta 
Blue Vp (C.I. 24401), Acid Green 2G (C.I. 42085), Astragn Green D (C.I. 
42040), Supranol Cyanine 7B (C.I. 42675), Maxilon Blue 3RL (C.I. Basic 
Blue 18), Alizarine Light Blue H-RL (C.I. Acid Blue 182), FD&C Blue No. 1, 
FD&C Green No. 3 and Acid Blue No. 9. Others are disclosed in the 
aforementioned U.S. Pat. Nos. 4,310,434 and 4,477,363, which are herewith 
incorporated by reference. 
The liquid compositions may also contain perfumes to impart an acceptable 
odor to the flushing water. The perfume should be water soluble and is 
suitably present in an amount up to 10% by weight. In this connection, it 
may be noted that the term "perfume" is intended to refer to any material 
giving an acceptable odor and thus materials giving a "disinfectant" odor 
such as essential oils, pine extracts and terpinolenes. Other suitable 
perfumes or fragrances are disclosed in U.S. Pat. No. 4,396,522 of 
Callicott et al, which is herein incorporated by reference. 
If desired, other halophors may be added, for example, bromophors such as 
dibromopropamidine isethionate (sold under the trademark BROMOPOL), 
bromochlorodimethyl hydantoin, dibromodimethyl hydantoin, and 2-cyano-2, 
2-dibromo acetamide, preferably in an amount up to about 5% by weight. 
The present invention can be more fully appreciated from the following 
examples, which are given for illustrative purposes only and not to limit 
the invention. In the following examples and through the specification all 
percentages are percentages by weight unless otherwise indicated. 
EXAMPLE 1 
A liquid toilet bowl cleansing composition for use in a metering container 
is prepared by mixing the following: 
______________________________________ 
Ingredient % by weight 
______________________________________ 
Iodophor 1.9-4 
Surfactant 2-8 
Acid dye 0.5-10 
Deionized water QS 
100.0 
______________________________________ 
metering of said composition provides the toilet bowl with about 2 to 5 ppm 
of dye. 
EXAMPLE 2 
A liquid toilet bowl cleansing composition was prepared by mixing the 
following: 
______________________________________ 
Ingredient Amount % weight 
______________________________________ 
alpha-(p-Nonylphenyl) omega- 
3.8 
hydroxypoly (oxyethylene)-iodine complex 
Igepal CO-630 (surfactant) 
4.0 
Acid Blue 9 dye 1.5 
Acid Yellow 23 dye 0.6 
Water 90.1 
100.0 
______________________________________ 
The composition has a pH of 2.3. 
The composition is then placed into a metering container which is 
responsive to the flushing of toilets. 
EXAMPLE 3 
A liquid toilet bowl cleansing composition is prepared by mixing the 
following: 
______________________________________ 
Ingredients Amount % weight 
______________________________________ 
alpha-(p-nonylphenyl)-omega- 
3.8 
hydroxypoly (oxyethylene)-iodide complex 
Igepal CO-630 4.0 
Igepal CO-730 1.0 
Potassium iodide 0.2 
Acid Blue 9 dye 1.5 
Acid Yellow 23 dye 0.6 
Water 88.9 
100.0 
______________________________________ 
The specific gravity of the composition was 1.02+0.01. 
Optionally, about 1% by weight of a perfume, for example, pine oil may be 
added. The results of efficacy testing of the composition based on EPA 
Efficacy Data Requirements in a metered dosage container is shown in the 
following Table II. 
TABLE II 
__________________________________________________________________________ 
CONTACT TIME NEEDED TO 
TITRATABLE 
PRODUCT ACHIEVE 99.9% KILL (MINS.) 
TOILET # 
FLUSH 
IODINE (PPB) 
LIFE (FLUSHES) 
STAPH. 
SALM. 
BREVI. 
PROT. 
__________________________________________________________________________ 
A. 10.degree.-15.degree. C. Toilets 
19 6 278 254 30 30 10 10 
150 276 30 30 10 10 
231 334 -- -- -- -- 
240 349 30 30 10 10 
20 6 303 290 30 30 10 10 
150 297 30 30 10 10 
231 282 -- -- -- -- 
240 259 30 30 10 * 
21 6 339 308 30 30 10 10 
150 364 30 30 10 10 
231 247 -- -- -- -- 
240 227 30 30 10 * 
B. 25.degree.-30.degree. C. TOILETS 
22 6 184 260 30 30 10 10 
150 276 30 30 10 10 
231 334 -- -- -- -- 
240 349 30 30 10 10 
__________________________________________________________________________ 
Bowl Inlet Water Analyses &lt;0.02 ppm total available chlorine 7.1 to 7.8 
pH 
*Experimental Error No result 
EXAMPLE 4 
A liquid toilet bowl cleansing composition for use in metering container is 
prepared by mixing the following ingredients. 
______________________________________ 
Ingredients Amount % weight 
______________________________________ 
alpha-(p-nonylphenyl)-omega- 
4.5 
hydroxypoly (oxyethylene)-iodide complex 
Igepal CO-630 4.0 
Potassium iodide 0.2 
Methyl dimethyl propoxylene 
0.5 
ammonium chloride 
Acid Blue 9 dye 2.0 
Water 88.8 
100.0 
______________________________________ 
EXAMPLE 5 
______________________________________ 
Ingredient Amount % weight 
______________________________________ 
alpha(p-nonylphenyl)omega 
3.8 
hydroxypropyl (oxyethylene) 
iodine complex 
Igepal CO-630 (9 to 9.5 E.O.) 
4.0 
Acid Blue 9 dye 1.3 
Water 90.9 
100.0 
______________________________________ 
The concentration of the dye and iodine in the toilet bowl after a series 
of flushing is shown in FIG. 1. 
EXAMPLE 6 
A liquid toilet bowl cleansing composition for metering into a toilet bowl 
is prepared by admixing the following ingredients: 
______________________________________ 
Ingredient Amount % weight 
______________________________________ 
Clean Front concentrate 
3.35 
Igepal CO-630 3.50 
Acid Blue No. 9 dye 
1.30 
Water QS 
100.0 
______________________________________ 
The sanitizing properties of the prepared formulation is shown in FIG. 2. 
EXAMPLE 7 
A liquid lavatory composition for a metering container was prepared from 
the following ingredients: 
______________________________________ 
Ingredient Amount % weight 
______________________________________ 
Alpha-(P-Nonylphenol) Omega- 
3.8 
Hydroxypoly (Oxyethylene) Iodine Complex 
Igepal CO-630 (Surfactant) 
4.0 
Dodecyl Benzene Sulfonic Acid 
1.0 
(Surfactant) 
Acid Blue 9 Dye 1.5 
Potassium Iodide 0.2 
Water 89.5 
100.0 
______________________________________ 
EXAMPLE 8 
A liquid lavatory composition for a metering container was prepared from 
the following ingredients: 
______________________________________ 
Ingredient Amount % weight 
______________________________________ 
Alpha-(P-Nonylphenol) Omega- 
3.8 
Hydroxypoly (Oxyethylene)- 
Iodine Complex 
Igepal CO-630 (Surfactant) 
4.0 
Dodecyl Benzene Sulfonic Acid 
2.0 
(Surfactant) 
Acid Blue 9 Dye 1.5 
Potassium Hydroxide to PH 2.5-3.0 
Water (QS to 100%) 
100.0 
______________________________________ 
EXAMPLE 9 
A liquid lavatory composition for a metering container was prepared for the 
following ingredients: 
______________________________________ 
Ingredient Amount % weight 
______________________________________ 
Alpha-(P-Nonylphenol) Omega- 
3.8 
Hydroxypoly (Oxyethylene)- 
Iodine Complex 
Dodecyl Benzene Sulfonic Acid 
5.0 
(Surfactant) 
Acid Blue 9 Dye 1.5 
Potassium Iodide 0.2 
Water 89.5 
100.0 
______________________________________