ALKONAT® L

Ethoxylated Lauryl Alcohol

www.oxiteno.com 1

DESCRIPTION ALKONAT® L is a line of products comprised of different degrees of alcohol ethoxylate obtained from the reaction of lauryl alcohol derived from natural and renewable sources with ethylene oxide (EO) and they can be represented by the following generic structure:

where “x” represents the average number of moles of ethylene oxide (degree of ethoxylation) and “R” represents the lauryl alcohol carbon chain.

Product Chemical Description INCI Name CAS No.

Number of carbons derived from renewable sources (%)

ALKONAT® L 10 L Lauryl Alcohol 1EO Laureth-1 9002-92-0 86

ALKONAT® L 20 Lauryl Alcohol 2EO Laureth-2 9002-92-0 76

ALKONAT® L 30 Lauryl Alcohol 3EO Laureth-3 9002-92-0 68

ALKONAT® L 40 Lauryl Alcohol 4EO Laureth-4 9002-92-0 61

ALKONAT® L 50 Lauryl Alcohol 5EO Laureth-5 9002-92-0 56

ALKONAT® L 60 Lauryl Alcohol 6EO Laureth-6 3055-96-7 51

ALKONAT® L 70 Lauryl Alcohol 7EO Laureth-7 3055-97-8 47 ALKONAT® L 70 WA

Lauryl Alcohol 7EO, 90%, water solution Laureth-7 3055-97-8 47

ALKONAT® L 80 Lauryl Alcohol 8EO Laureth-8 9002-92-0 44

ALKONAT® L 90 Lauryl Alcohol 9EO Laureth-9 3055-99-0 41

ALKONAT® L 100 Lauryl Alcohol 10EO Laureth-10 6540-99-4 38

ALKONAT® L 230 Lauryl Alcohol 23EO Laureth-23 9002-92-0 22

APPLICATIONS Leathers The ALKONAT® L product line has a molecule with a lipophilic nature from the starting alcohol carbon chain, and a hydrophilic nature, resulting from the ethylene oxide chain. Increasing the degree of ethoxylation increases the hydrophilic nature of the molecule (higher HLB), and as a consequence, altering the solubility in water and the foam, detergency, emulsifying and wettability properties. These surfactants act as emulsifiers, detergents, solubilizers, essence fixers and synthesis intermediates to obtain sulfated surfactants. The ALKONAT® L product line has excellent surface tension reduction power. These products generally do not precipitate in the presence of water hardness ions and are compatible with anionic, cationic and non-ionic surfactants, maintaining and presenting chemical and physical stability in an alkaline and an acid medium and at different temperatures. These surfactants are also compatible with diverse solvents. Some applications for the ALKONAT® L line are: In the leather segment, ALKONAT® L 70 WA is recommended for the soaking, dehairing and liming, deliming and purging, retanning and shining steps aimed at reducing surface tension of the bath and facilitating the penetration of tanning, retanning and dyeing agents.

ALKONAT® L

Ethoxylated Lauryl Alcohol

www.oxiteno.com 2

The use of the ALKONAT® L line during leather processing provides good cleaning of the equipment in question and of the hide handling areas, due to the good emulsifying characteristics.

INFORMATIVE PROPERTIES (1)

Product Aspect at 25°C

Acidity Index (mg KOH/g)

Hydroxyl Index (mg KOH/g)

Water (% p), max.

pH(2) Pt-Co Color, max.

Cloud Point (°C)

HLB

ALKONAT® L 10 L Clear 0.5 234 - 240 0.1 6.0 - 8.0 50(7) - 3.6

ALKONAT® L 20 Clear(3) 0.5 195-205 0.1 6.0 - 8.0 50(7) 36(4) 6.2

ALKONAT® L 30 Clear(3) 0.5 166-176 0.5 6.0 - 8.0 508) 50(4) 8.1

ALKONAT® L 40 Clear(3) 1.0 145-160 1.0 6.0 - 8.0 50(7) 60(4) 9.7

ALKONAT® L 60 Clear(3) 0.5 117 - 127 0.5 6.0 - 8.0 50(10) 42(5) 11.5

ALKONAT® L 70 Turbid (3) 0.2 109 - 119 0.5 6.0 - 8.0 50(9) 53(5) 12.3

ALKONAT® L 70 WA Clear to turbid 0.5 - 11.5 6.0 - 8.0 50(7) 53(5) 12.3

ALKONAT® L 80 Paste 0.5 99 - 107 0.5 6.0 - 8.0 50(10) 70(5) 12.9

ALKONAT® L 90 Paste 0.5 90 - 100 0.5 6.0 - 8.0 50(10) 81(5) 13.4

ALKONAT® L 100 Paste 0.5 86 - 94 0.5 6.0 - 8.0 50(10) 90(5) 13.9

ALKONAT® L 230 Solid 0.5 39 - 48 3.0 6.0 - 8.0 50(9) 70(6) 16.9 Notes: 1) The properties described herein are informative only and may be altered without prior notice. Please contact Oxiteno to request

the specification in effect if needed. 2) pH at 10% in isopropanol-water 1:1 v/v at 25°C 3) Tends to present turbidity and separation of phases at temperatures below 25 °C. 4) Determined at 20 in a Butyl diglyicol water solution at 25% 5) Determined at 1% in a Water solution 6) Determined at 1% in a 10% solution of NaCl p/v 7) 25°C 8) 40°C 9) 60°C 10) 70°C

HANDLING AND STORAGE Pure ALKONAT® L products can irritate the skin. This irritability is considerably reduced with an increase in the degree of ethoxylation. Lauryl alcohol ethoxylates are considered biodegradable and present moderate water toxicity. During handling, use personal protective equipment (PPE). In the case of accidental contact, consult the material safety data sheet (MSDS) and the emergency sheet (MEDS). Store the products in a covered and dry place, far from sources of heat and ignition. The places where chemical products are handled should be well-ventilated, have emergency showers and eye washing areas. ALKONAT® L line products are of difficult combustion but they burn if involved in fire. Check the MSDS in the event of fire. ALKONAT® L products have a clear to turbid aspect with separation of phases at ambient temperature, but they become clear and temperatures between 40° and 60° C.

ALKONAT® L

Ethoxylated Lauryl Alcohol

www.oxiteno.com 3

For bulk storage, use AISI 304 or 316 stainless steel tanks or tanks made of carbon steel coated with vinyl ester resin. These tanks should have a heating serpentine (304 or 316 stainless steel) installed in the bottom, and a recirculation system for homogenizing the product if necessary. Keeping the temperature at a proper level to control viscosity at the lowest range, a centrifuge pump may be used to discharge and transfer the products. ALKONAT L 70 WA has a clear aspect at temperatures above 17 °C and it was developed to facilitate handling of ALKONAT L 70 (turbid to pasty with separation of phases under 25 °C).

® Oxiteno’s Registered Trademark. WARNING TO USERS This Technical Bulletin contains information presented in good faith, based on Oxiteno’s current knowledge about the matter, and it only has indicative value. Any information, including product use suggestions, must include testing and experimental verifications, essential to ensure product fitness for each specific application. The final formulator is also responsible for observing local legislation and obtaining all necessary authorizations. When handling the product, it is indispensable to consult the material safety data sheet. In the case of doubts or additional needs, contact the customer service channels.

052012