Chemzip

Calcium Nitrite Concrete Corrosion Inhibitor

CAS Number: 13780-06-8

Calcium nitrite is the most widely proven anodic corrosion inhibitor for steel reinforcement in concrete, passivating the steel surface and raising the chloride threshold concentration required to initiate corrosion. Applied at 10–30 L/m³, it can extend the service life of reinforced concrete structures in chloride-rich environments (marine, de-icing salts) by 2–4 times. It also provides a mild early-strength acceleration effect.

Technical Specifications

pH11.0-12.0
appearanceClear to slightly hazy liquid
specific gravity1.26–1.28
chloride content (%)≤0.05
calcium nitrite content (%)30±1

Applications

  • Marine and coastal reinforced concrete structures
  • Bridges and infrastructure exposed to de-icing salts
  • Parking structures with high chloride exposure
  • Precast concrete elements in aggressive environments
  • Concrete rehabilitation and repair in chloride-laden conditions

Key Features

  • Anodic inhibitor that passivates reinforcement surface effectively
  • Raises chloride threshold to delay and prevent corrosion initiation
  • Dual benefit: corrosion protection and mild early-strength gain
  • Most extensively field-tested corrosion inhibitor in concrete

Send Inquiry

Your information is used only to respond to your inquiry and will not be shared.

Calcium Nitrite Concrete Corrosion Inhibitor chemical structure

CAS Number

13780-06-8

Availability

In Stock

Sample

Dispatched within 5 days

Get a QuoteWhatsApp

More in Construction / Concrete Chemicals

Frequently Bought With

TelegramWhatsApp