ASCOTRAN® NSC is a ready-to-use liquid organic corrosion inhibitor for both ferrous and non-ferrous metals in contact with neutral-to-alkaline aqueous solutions. It also acts as an anticorrosion agent for temporary protection of metals against atmospheric corrosion.

Functions: Corrosion Inhibitor

Certifications & Compliance: DNV GL Certified, ISO 9001

Labeling Claims: Boron-free, Molybdate-free, Nitrite-free, Non-Flammable, Silicate-free, VOC-free

End Uses: Degreasers, Detergents

Technical Data Sheet

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Identification & Functionality

Cleaning Ingredients Functions
Technologies
Product Families
Chemical Nature

Aqueous preparation made of organic acid salts and azole derivatives.

Features & Benefits

Labeling Claims
HII Features
Product Features
  • Fully water-soluble liquid.
  • Free from bore, phosphate, molybdate, silicate or nitrite.
  • Efficiently protects copper and alloys.
  • Efficiently protects aluminium and alloys in contact with alkaline solutions.
  • Made exclusively of substances authorized for food-contact cleaners (according to decree of 08/09/99).

Applications & Uses

Markets
Applications
I&I Cleaning Applications
Use Level
4 - 10% (Temporary Protection), 1 - 2% (Detergents/Degreasers)
Product Application

Mainly used for :

  • Neutral or alkaline detergents in contact with metal substrates
  • Metal degreasing and cleansing operations performed during metal-working procedures
  • The temporary protection of metals during their transport and storage periods
Dosage

Can be directly added to the solution to be treated, without any pre-mixture or neutralizing step. Indicative use dosages (% of total end-solution weight)

  • Detergents/Degreasers : 1 to 2%, depending on the pH.
  • Temporary protection : 4 to 10% depending on the expected protection duration.
  • When used for temporary protection only, the product should be diluted in soft water and applied onto metal substrates : By dipping, by spraying (depending on the spray pressure, a defoamer can be recommended) or by brushing.

Properties

Physical Form
Soluble In
Appearance
Yellow to amber limpid liquid
Miscible in
Water, Ethanol, Glycols, Acetone, Isopropanol
Immiscible In
White-Spirit
Typical Properties
ValueUnitsTest Method / Conditions
Density (at 20°C)1.12 - 1.16--
Viscosity (at 20°C)680 - 880cPs-
pH Pure (at 20°C)8.2 - 8.8--
Freezing Pointmax. -5°C-

Regulatory & Compliance

Certifications & Compliance

Technical Details & Test Data

Performance Data

Protection by contact or short immersion
Method : DIN 51360/part 2
Medium : deionized water

Performance at different pH (adjustment with NaOH) :
ASCOTRAN® NSC - Performance Data - 1

Comparative studies with our competitors’ inhibitors :
Medium : deionized water adjusted at pH-9 with NaOH if necessary.
Competitor 1 & 2 : multi-metallic liquid corrosion inhibitors.
Competitor 3 : azole-based corrosion inhibitor.

ASCOTRAN® NSC - Performance Data - 1

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

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

Aluminium protection in basic medium
Method : IP329; 50°C, 330h
Medium : deionized water adjusted at pH 12-13 with NaOH.
ASCOTRAN® NSC - Performance Data - 1

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

A comparative study with azoles :
BZT: pure benzotriazole; TT : pure tolyl triazole

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

Protection against atmospheric corrosion
Method : Climatic chamber, 25°C, 100% of humidity
Substrate : Mild-Steel or Copper 99%, immersed a few minutes in the solution added with inhibitor.

Maximum exposure duration without any corrosion of the substrate :

% in Ascotran-NSC 0 % 2% 5% 10%
Copper <24h >1000h >1500h >3000h
Mild-Steel <24h 350h 500h >500h

 

Packaging & Availability

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

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.