Azodicarbonamide

CAS Number
123-77-3
EC Number
204-650-8
Chemical Formula
C2H4N4O2
Molecular Weight
116.08 g/mol
Abbreviation
ADCA

Description

Azodicarbonamide (CAS 123-77-3), also known as ADCA or Celogen AZ, is a chemical blowing agent and dough conditioner used across rubber processing, plastics manufacturing, and food production. It decomposes upon heating to release gas, generating a controlled cellular structure in foamed materials or improving dough handling properties in baked goods for industrial food processors.

In rubber and plastics, ADCA is compounded into EVA, PVC, and polyolefin formulations to produce foamed sheets, profiles, and soles for footwear where consistent cell structure affects product density. Bread and flour manufacturers use it as a flour maturing agent, where it strengthens gluten networks and improves machinability of high-output dough lines in commercial bakery environments.

In synthetic leather and textile coating applications, it generates the foam layer in PVC-coated fabrics, controlling thickness and flexibility of the finished substrate for various industrial uses. Masterbatch producers also incorporate ADCA into concentrate systems for downstream processors requiring pre-dispersed blowing agent solutions to ensure uniform distribution during the manufacturing process.

Azodicarbonamide is supplied as a yellow to orange fine powder. Standard commercial grades include food-grade and technical/rubber grades differentiated by particle size and decomposition temperature range. Activated grades with modified decomposition profiles are available for specific polymer processing windows, ensuring the material meets strict industrial requirements and performance benchmarks.

Other Names (Synonyms)

azo(bis)formamide|ADCA|Celogen AZ|1,2-Diazenedicarboxamide|Formamide, 1,1′-azobis-|ADC|E927a.

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

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Physical Properties

Melting Point 225 °C (decomp)
Boiling Point 217.08°C (rough estimate)
Density 1.65 g/cm³ @ Temp: 20 °C
Flash Point 225 °C
Appearance orange crystalline powder
Color Yellow to orange-red crystalline powder
Odor odorless
Form Solid
Water Solubility SOLUBLE IN HOT WATER
Vapor Pressure 0Pa at 25℃
Refractive Index 1.4164 (estimate)
pH 7 ( in H2O, neutral)
Log P -1.148 (est)

Documentation

Safety & Handling Learn More

Danger
GHS08· Health Hazard GHS02· Flammable GHS07· Irritant

Hazard Statements

H228 Flammable solid
H317 May cause an allergic skin reaction
H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled
H402 Harmful to aquatic life
H412 Harmful to aquatic life with long lasting effects

Precautionary Statements

P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P233 Keep container tightly closed.
P240 Ground and bond container and receiving equipment.
P241 Use explosion-proof [electrical/ventilating/lighting/…] equipment.

Trade & Regulatory

HS Code 29270000
UN Number 3242
ADR Class 4.1
Packing Group II
Storage Class 4.1A - Other explosive hazardous materials
WGK (Germany) 1
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