Colonial Zf-20

Colonial ZF-20 DESCRIPTION Colonial ZF-20 is a low foaming surfactant concentrate that is soluble at room temperature in moderately alkaline solutions. Dilute solutions of Colonial ZF-20 have a wide range of functional cloud points and are non-foaming above those temperatures. This product is best suited for use in pipeline cleaners, spray cleaners, CIP cleaners, and soak tank cleaners where immediate solubility and low foam are required.

TYPICAL PROPERTIES Appearance % Solids pH (as is) Specific Gravity

Clear Liquid 50 7.70 1.16

CLOUD POINTS FOR Colonial ZF-20 IN KOH % ACTIVE SOLUTION 10% 1 37°C 2 45°C 3 52°C

%KOH 20% 50°C 63°C 70°C

COLONIAL ZF-20 VERSUS TRITON DF-20 PERFORMANCE COMPARISON OF ALKALI-SOLUBLE LOW FOAM SURFACTANTS Three factors must be considered as key to the evaluation of alkali-soluble low foam surfactants: 1.) Solubility in alkali, which determines the range of possible concentrates that can be formulated. 2.) Foaming tendency, which impacts inversely on productivity. 3.) Detergency, which relates to performance efficiency. Thus, concentrates must exhibit cloud points above ambient temperatures in order to permit storage without phase separation and diluted solutions are utilized at temperatures above their cloud point in order to be very low foaming. Additionally, it is advantageous for the surfactant to be rapidly soluble in the course of preparing the desired concentrates.

225 Colonial Drive

South Pittsburg, TN 37380

Ph: 423-837-8800

Fax: 423-837-3888

SOLUBILITY IN ALKALI The table below demonstrates that Colonial ZF-20 provides better solubility (higher cloud points) compared to Triton DF-20. CLOUD POINT, oC % Active 5% NaOH 1 34 5 61 1 15 5 50

Surfactant Colonial ZF-20 Triton DF-20

10% NaOH 34 70 17 61

15% NaOH 50 77 40 54

FOAMING PROPERTIES When concentrates are diluted for end-use in spray cleaning and the solution is applied hot, it must be very low foaming. Normally, this is achieved by operating above the cloud point of the dilute solution. Data below identifies foaming tendencies, as well as cloud points as a function of temperature of such solutions. Tested in Waring Blender, 100 ml solution mixed at highest speed for 15 seconds. Surfactant concentration is 0.5% active.

Test Temperature 40oC 60oC

FOAM VOLUME, ml ZF-20 0.5% NaOH 2.0% NaOH

DF-20 0.5% NaOH

2.0% NaOH

10 0

50 30

5 0

0 0

5% Active Surfactant in % NaOH 0.5 2.0

CLOUD POINTS, oC ZF-20 DF-20 40 >100 36 30

DETERGENCY Alkaline metal cleaning lab tests demonstrate that Colonial ZF-20 is markedly superior to Triton DF-20 for the removal of viscous paraffinic oil from steel.

% DETERGENCY * Surfactant Colonial ZF-20 Triton DF-20

100 34

*Coated steel panels washed 10 mins. @ 60oC in solution containing 0.5% active surfactant and 2% of an alkaline base comprised of NaOH, sodium metasillicate and soda ash. 225 Colonial Drive

South Pittsburg, TN 37380

Ph: 423-837-8800

Fax: 423-837-3888

CONCLUSION Colonial ZF-20 is clearly superior to Triton DF-20 in solubility characteristics and detergency. Also, Colonial ZF-20 has the additional advantage of being instantaneously soluble in caustic solutions, while Triton DF-20 requires “activation” by an extensive heating period to achieve solubility.

LAST UPDATED 07/18/2006

WARRANTY Colonial Chemical guarantees that its products meet published specifications. No other warranties or guarantees are expressed or implied because the use of this material is beyond the control of Colonial Chemical.

Colonial Chemical, Inc. www.colonialchem.com 225 Colonial Drive South Pittsburg, TN 37380

225 Colonial Drive

South Pittsburg, TN 37380

Ph: 423-837-8800 Fax: 423-837-3888

Ph: 423-837-8800

Fax: 423-837-3888