Ashland chemical

Drew Ameroid Marine Division

LAC
liquid alkaline cleaner Description
LAC liquid alkaline cleaner us a combination of fast- LAC cleaner can also be used as a general pupose
acting detergenlts. wettug agents sad alkaline cleaners cleaner to remove oil and grease from surfaces in the
blended in a water-based carrier. engine and deck departments and other areas where
grease and oil are encountered.
LAC cleaner us applied as a highly diluted solution.
with fresh or salt water, to remove edible fats and ads. In addition. LAC cleaner can be used in boding out
as well as light fuel and lube ails from cargo and new or retubed boilers as well as in cleaning contaminated
sror~e tanks and associated systems. LAC cleaner is boilers and associated systems.
following cleaning with
peamleum-based tank cleaners. LAC cleaner should be diluted to a concentration at
20% or less in water before use an systems containing
non-ferrous metals.
Featares Benefits
· Does not contain petroleum-based solvents · No flash or Fire point
· Leaves no oily film.
· Completely water soluble · Can be mixed in all proportions with fresh or
seawater.
· Easily dosed into marine systems.
· Concentrated bleed of powerful detergents, · Highly effective art and grease remover.
wetting agents and alkaline agents · Economical.
· Multi-purpose marine cleaning agent
· Reduces deposits in sewage tines and holding tanks.
· No odor ·· Can be used for tank deodorizing.
· Easy to use · Can be applied by high pressure spray, brush
or in dip tanks.
· Can be used for acid neutralization.

Application and Use

Tank Cleaning Machine Washing

Details of any cleaning procedure will vary according I. Direct Injection Method (the once-through or total
To the type of contaminant and the nature of the surface
To be cleaned loss method).so be cleaned .
a. Introduce LAC cleaner directly into the tank
The following general suggestions are for the appllica- wash-water line by means of an eductor or
Tion of LAC Cleaner in most commonly used commonly tank small metering pump. Adjust the feed rate to
cleaning procedures. give the correct solution strength, (O.2%.O.8%).

Preliminary consideration for any cleaning Method b. The tank should be stripped continuously while
1. Tanks should be stripped completely at the
Recommended cargo pumping temperatures. washing

c. Rinse the tank with ambient temperature water.

2. To avoid delay aIl equipment for the cleaning
immediately after cleaning with LACcleaner
should be onboard and in a
condition ready for use before cleaning is begun. d. If necessary, at clean manually tO remove
soil materIal that remain after cleaning
3. Tanks containing drying oils should be cleaned with
cold water immediately after discharge to prevent
formation of a hard tenacious residue. Adequate 2 Recirculation Method
ventilation should be provided and other standard a. While filling the recirculation tank with water.
procedures should be observed to allow personnel to add the amount of LAC cleaner required for
enter tanks as soon as possible after unloading. correct solution strength. (O.2%-O.8%).
 b. Except for die fact that tanks being washed are 2. Fill the boiler with 2%-6% solution (by volume) LAC
stripped back to the recirculation tank, the procedure cleaner and water at 60’C-710C (l4O~F-160F).
is similar to that for once-through washing.
3. Start filling the mixing tank from the line from the
Rock-and-Roll Method bottom blowdown. When the tank is full, start the
a. Fill the tanks to be cleaned with water to the pump and regulate the flow of the solution so
that the pump removes water from the tank at the
required level, at the same time adding enough LAC same rate as it is added.
cleaner to give correct solution strength,
(O.2%-0.8%). 4. Maintain circulation of the solution at 6(rC-7PC (l4OdegF~
l60deg F) for 8-12 hours. Heat should be obtained from a
b. If a warm or hot cleaning solution is required, apply heating coil or a steam line in the cleaning solution
full heat on the heating coils until proper tank. LAC cleaner should never be used as an “on-line”
temperature is reached, first checking that the cleaner.
heating coil material is compatible with LAC
cleaner. 5. Drain the boiler and flush from the top down with high
pressure water to remove any loose maner and inspect.
c. After 24 hours or more, if required, strip and rinse
. the tank. - 6. Return the boiler to normal operating conditions by
disconnecting the circulation unit and reconnecting the
Spot Cleaning (Manual) blowdown line.

I. Prepare a l% solution of LAC liquid alkaline cleaner, a. Refill the boiler with water and add nonnal startup
using 10cc of LAC cleaner per liter of water (about 1-1/4 dosages of Drew Ameroid Marine boiler ~valer
ounces of LAC cleaner per U.S. gallon of water). treatment chemicals. -I

2. Scnib the area to be cleaned with a broth or broom using

b. If the boiler is not to be put into service immediately
generous amounts of the cleaning solution. Protective
follow standard wet layup procedures.
clothing including goggles and face masks to prevent
liquid from spattering into the eyes must be used.
3. Flush the clean surfaces with water. Typical Physical Properties
Appearance: Clear, colorless liquid
It must, of course, be understood that the details of the Specific Gravity 0 250C (770F): 1.08
in8 methods including temperatures and quantities of pH: 13.4
cleaner may be subject to change due to varying conditions, Flash Point: None
all of which obviously cannot be discussed In this data
sheet. Therefore, the above Is a guide and not an exact Important information
procedure to follow at every occasion.
Drew maintains Material Safety Data Sheets on all of its
Boiler Cleaning
products. Material Safety Data Sheets contain health and
safety information for your development of appropriate
I. Install a chemical cleaning circulating unit such as the product handling procedures to protect your employees and
Ameroid Chemical Cleaning Circulating Unit. customers.
 a. Disconnect the bottom blowdown piping after the OUR MATERIAL SAFETY DATA SHEETS SHOULD
bottom blowdowa valve and install a “tee”. Connect a BE READ AND UNDERSTOOD BY~ ALL OF YOUR
pir from one end of the tee to waste. Install a shut- SUPERVISORY PERSONNEL AND EMPL0YEES
in this line. Connect another pile fnxn the BEFORE USING DREWS PRODUCTS IN YOUR
other end of the tee to the bottom of the circulating FACILITIES.
tank. Connect a pipe from the discharge of the
circulating pump to the top of the boiler.
Install a check valve and a shut-off vale in this line.
Packaging
LAC liquid alkaline cleaner is normally available in
b. Set all valves for circulation of the cleaning solution. 25 liter pails (P/C #00574O7) and 200 liter drums
(P/C#0057423).
liquid alkaline cleaner is being used by many major shipping
companies worldwide as part of their regular maintenance program. It
is available in Drew’ s major stocking locations around the world and is
backed by individual service when and where needed. LAC cleaner is
manufactured to the highest specifications asauring consistent quality
perfomiance.