Congo Red Test Paper

pH paper used to test narrow-range acidic solutions.

  • Pocket-sized, lightweight vial
  • No color chart necessary
  • Customizable label
  • Bulk quantities available
  • Also available in sheets
  • 100 test strips

Available in

115-12V-100       12 Vials (#1020), 100 Strips/Vial

115-25V-100       25 Vials (#1020), 100 Strips/Vial

115-144V-100    144 Vials (#1020), 100 Strips/Vial

Product Description

Congo Red Test Paper

The Congo Red test paper is used to test narrow-range acidic solutions. Congo Red Test Paper is used in acid washes for metal plating where pH values are very low (pH 1.0-3.0). The Congo Red indicator remains blue below pH 3.0, then gradually turns to a brilliant red above pH 5.2.

Instructions:

  1. Remove one Congo Red test paper from the vial, being careful not to touch the strip anywhere other than where you grasp it with your fingertips.
  2. Dip the strip into the solution to be tested for 1-2 seconds and remove.
  3. The Congo Red indicator remains blue below pH 3.0, then gradually turns to a brilliant red above pH 5.2.

NOTE: The solution must be water-based.

Disclaimer: Precision Laboratories products are not approved for use as medical devices. Products and product information is for informational purposes only and not intended for use to diagnose, treat, cure or prevent any medical condition. Consult a medical doctor when needed.

Additional Information

Vial Dimensions:.75″ (D) x 2.75″ (H) [19mm (D) x 70mm (H)]
Strip Dimensions:1.875″ (L) x .25″ (W) [48mm (L) x 6mm (W)]
Shelf-Life:3 Years Minimum
Item # (1):115-12V-100 (12 vials, 100 strips/vial)
Item # (2):115-25V-100 (25 vials, 100 strips/vial)
Item # (3):215-24-8X10 (24 sheets, 8″ x 10″ [200mm x 250mm])
Item # (4):215-500-8X10 (500 sheets, 8″ x 10″ [200mm x 250mm])
OtherAdditional sheet sizes available upon request

Product Documentation

Product Documentation