Additin® RC 5800

Type

Yellow metal deactivator

Application

– water miscible metal working fluids (synthetic and emulsifiable MWF)
– metal working emulsions and solutions (for tank-side addition)
– hydraulic fluids (type HFC)
– water-based metal cleaning concentrates
– metal cleaning solutions (for tank-side addition)
– antifreeze
– closed cooling and heating circuits
– open cooling water circuits
– moistening agents for offset printing
– Disinfectants

Additin® RC 5800 protects primarily copper and cobalt, including their alloys, as well as nickel from corrosion,
forming a very thin, stable and virtually colorless film on the metal surface. The formation and accumulation of
copper ions in the products, e.g. cooling or heat transfer fluids, are prevented and consequently the copper ion
catalyzed oxidation or degradation reactions are avoided. Copper ions can also cause pitting on metals such as
aluminium, zinc, iron and steel. Additin® RC 5800 can be combined with other corrosion inhibitors, e.g. sodium
benzoate, borax, silicate, nitrite, molybdate, phosphate and organic phosphorus compounds and increases their
effectiveness.

Additin® RC 5800 is effective at very low concentrations (see table below, “Typical treatment levels”). As a liquid
Additin® RC 5800 offers further advantages such as ease of handling, processing, dosage and excellent solubility
in glycols.

In most applications Additin® RC 5800 can be used in place of solid tolyl- triazole (Additin® RC 8221). In this
case the addition of Additin® RC 5800 should be approx. 2.3 times higher than the respective amount of
tolyltriazole.

Solubility

Additin® RC 5800 is miscible with lower alcohols, ethylene glycol and propylene glycol in any ratio. Depending on
the concentration, dilutions with water are slightly cloudy. The cloudiness can be overcome, if required, by adding
methanol, ethanol or isopropanol. However, it is necessary to verify the solubility in the base fluids used and the
compatibility with other additives. Additin® RC 5800 is not compatible with acids or highly acidic solutions.

Used as tank-side-additive Additin® RC 5800 is soluble by sufficient turbulence of the metal working
emulsion/solution or metal cleaning solution.

Packing Unit

60 kg bunghole drums / 240 kg palette

Storage Conditions

In a dry place at room temperature approx. 24 months.
At temperatures below 0°C some of the product may crystallise out. This can be dissolved again by heating the
product to a maximum of 50°C.

Handling

Consult material safety data sheet (MSDS) for additional handling information on Additin® RC 5800.