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Chautauqua Chemicals Company MC 690 LF

Chautauqua Chemicals Company MC 690 LF is an acid cleaner for use in soak, vibratory, and spray wash systems. It is used for the removal of rust and heat treat scale from various steels.

Product Type: Acid Cleaners, Cleaner, Descalers, Multipurpose Cleaners, Rust Removers

Application Area: Machine Parts

Compatible Substrates & Surfaces: Metal

Features: Excellent Rinsability, Low Foaming, Water-based

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Features & Benefits

Advantages
  • Water based cleaner.
  • General purpose product, useful over a wide range of applications.
  • Excellent rinsability.

Applications & Uses

Markets
Application Area
Application Method
Compatible Substrates & Surfaces
Normal Use

This product is diluted with water before use. Determine the proper ratio based on the volume of the tank. Mix MC 690 LF 1 to 10% with water (2 to 5 % typical).

Properties

Typical Properties
ValueUnitsTest Method / Conditions
Concentration5 - 20%
Operating Temperatures 110 - 160°F
pH Value2 - 3

Technical Details & Test Data

Normal Control

Dropping Bottle Method (Test Kit available from Chautauqua Chemicals Co. -Part No. 3647)

  • Take a sample of the MC 690 LF solution from the bath with a beaker and allow to cool to room temperature.
  • Measure out 5 ml using the graduated sample bottle provided in the test kit.
  • Add 1 drop of phenolphthalein indicator.
  • Add dropwise 2.4N sodium hydroxide while counting the drops and swirling the solution.
  • Stop adding the drops when color changes from colorless to pink.
  • Calculation: Percent Concentration of MC 690 LF = Drops of 2.4N NaOH x 0.35