ASCOTRAN® R is a ready-to-use, liquid-form organic corrosion inhibitor designed for ferrous and non-ferrous metals in contact with neutral-to-alkaline aqueous solutions.

Functions: Corrosion Inhibitor

Compatible Substrates & Surfaces: Copper Alloys, Iron, Metal

Features: Foaming Resistant, Non-Flammable

Technical Data Sheet

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Identification & Functionality

Fluids & Lubricants Functions
Product Families
Chemical Nature

Aqueous preparation made of organic acid salts and azole derivatives.

Features & Benefits

Labeling Claims
Fluids & Lubricants Features
Product Features
  • Ready-to-use, liquid-form, and organic corrosion inhibitor for ferrous and non-ferrous metals, being in contact with neutral-to-alkaline aqueous solutions.
  • Fully water-soluble liquid
  • Non-foaming
  • Protects efficiently copper and alloys
  • Protects efficiently against galvanic corrosion of metals
  • Free from bore, phosphate, molybdate, silicate or nitrite
  • Exclusively made of authorized substances for food- contact cleaners (According to decree of 08/09/99)

Applications & Uses

Compatible Substrates & Surfaces
Fluids & Lubricants Type
Use Level
1.5 - 4%
Product Application
  • Glycol or alcohol-based heat-transfer fluids or coolants;
  • Antifreeze fluids and de-icing solutions.
  • Can be directly added to the solution to be treated. pH can be adjusted if necessary, with mineral or organic base as preferred.


Physical Form
Soluble In
Yellow limpid liquid
Stable in
Hard Water
Miscible in
Water, Ethanol, Glycols, Acetone, Isopropanol
Immiscible In
Typical Properties
ValueUnitsTest Method / Conditions
Density (at 20°C)1.09 - 1.13--
Viscosity (at 20°C)48 - 68cPs-
pH Pure (at 20°C)7.5 - 8.1--
Freezing Pointmax. -5°C-
Foaming PowerNull--

Technical Details & Test Data

Performance Data

Galvanic Protection
Method : ASTM D1384
Medium : corrosive water / EG mixture (ref. standard).
ASCOTRAN® R - Performance Data - 1

Comparitive studies with competitive inhibitors :
Method : ASTM D1384
Medium : corrosive water / EG mixture (see standard).
Competitor 1 & 2 : liquid multi-metallic corrosion inhibitors.
ASCOTRAN® R - Performance Data - 1

Multi-metallic protection
Method : IP329; 50°C, 330h
Medium : deionized water adjusted at pH≈9 with NaOH if necessary.
ASCOTRAN® R - Performance Data - 1

Cuprous metals protection
Method : ASTM D130, 3h, 100°C
Medium : hydrosoluble oil, ready-to-use.

Comparative study with azoles :
BZT: pure benzotriazole; TT : pure tolyl triazole

  0 50 ppm 100 ppm
Ascotran-R 3b 1a 1a
BZT 3b 1b 1a
TT 3b 1b 1a

Packaging & Availability

Packaging Type
Packaging Information
  • Plastic pail of 30kg net.
  • Metal drum of 200kg net.
  • IBC of 1000 kg net.

No specific condition for transport. Weight and packaging size (off-pallet) :

  • Pail : 1.5kg - Ø30, H50
  • Drum : 15kg - Ø60, H90
  • IBC : 70kg - L120, l100, H120

Storage & Handling

Shelf Life
2 Years
Storage and Shelf Information
  • Ideal temperature conditions: -5 to 30°C.
  • Exposure: avoid direct exposure to sunlight.
  • Expiration: 2 years in its original sealed drum, in the storage conditions described above. With time, the colour of the product may turn darker, but it does not modify its properties.