Azodicarbonamide Chemical Properties

Melting point:

220-225 °C (dec.)(lit.)

Boiling point:

217.08°C (rough estimate)

Density 

1.65

vapor pressure 

0Pa at 25℃

refractive index 

1.4164 (estimate)

Flash point:

225 °C

storage temp. 

Flammables area

solubility 

water: soluble0.033g/L at 20°C

form 

Solid

pka

14.45±0.50(Predicted)

color 

Orange-red powder or crystals

Odor

odorless

Water Solubility 

SOLUBLE IN HOT WATER

Merck 

14,919

BRN 

1758709

Stability:

Highly flammable. Incompatible with strong oxidizing agents, strong acids, strong bases, heavy metal salts.

InChIKey

XOZUGNYVDXMRKW-AATRIKPKSA-N

LogP

-1.148 (est)

CAS DataBase Reference

123-77-3(CAS DataBase Reference)

NIST Chemistry Reference

Diazenedicarboxamide(123-77-3)

EPA Substance Registry System

Azodicarbonamide (123-77-3)

Safety Information

Hazard Codes 

Xn

Risk Statements 

42-44-R44-R42

Safety Statements 

22-24-37-S37-S24-S22

RIDADR 

UN 3242 4.1/PG 2

WGK Germany 

1

RTECS 

LQ1040000

HazardClass 

4.1

PackingGroup 

II

HS Code 

29270000

Hazardous Substances Data

123-77-3(Hazardous Substances Data)

Toxicity

LD50 oral in rat: > 6400mg/kg

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

Azodicarbonamide Usage And Synthesis

Description

Azodicarbonamide is a synthetic chemical that exists at ambient temperature as a yellow-orange crystalline solid. Azodicarbonamide is mainly used as a blowing agent in the rubber and plastics industries in the expansion of a wide range of polymers, including polyvinyl chloride, polyolefins, and natural/synthetic rubbers. Azodicarbonamide is also used as a food additive, such as an aging and bleaching ingredient in cereal flour and as a dough conditioner in bread baking.

References

[1] https://www.fda.gov
[2] http://www.who.int
[3] C. D. Han, Y. W. Kim and K. D. Malhotra, A study of foam extrusion using a chemical blowing agent , Journal of Applied Polymer Science, 1976, vol. 20, 1583-1595

Chemical Properties

orange crystalline powder

Uses

Azodicarbonamide is a dough conditioner that exists as a yellow to orange-red crystalline powder practically insoluble in water. it is used in aging and bleaching cereal flour to produce a more manage- able dough and a lighter, more voluminous loaf of bread. it is used in bread flours and bread as a dough conditioner. it can be used with the oxidizing agent potassium bromate. a typical use level is less than 45 ppm.

Uses

Azodicarboxamide is used as an additive to wheat flour breads and dough to improve the physical properties of the dough and the baking performance. It is also used to optimize the levels of oxidant/re ducing agents in the baking of wheat flour.

Uses

As blowing and foaming agent for plastics; as maturing and bleaching agent in cereal flour.

Definition

ChEBI: Azodicarbonamide is an organic molecular entity.

General Description

A yellow to orange powder. Insoluble in water and common solvents. Soluble in dimethyl sulfoxide. Nontoxic.

Air & Water Reactions

Highly flammable. Water insoluble. Dust may form an explosive mixture in air.

Reactivity Profile

Azodicarbonamide is easily ignited and burns rapidly. Confined samples show a high rate of pressure rise during thermal decomposition, which produces carbon monoxide and nitrogen. Sensitive to temperatures exceeding 122°F. May be sensitive to exposure to light. Stable in bulk when stored for two weeks at temperatures up to 140°F. Slightly unstable in water suspension (showed1.3% decomposition at 2 mg/mL over a two-week period at room temperature in the light but no decomposition at 41°F over a two-week period in the dark . Reacts with hot water to give nitrogen, carbon monoxide, and ammonia [Hawley]. Decomposes in hot hydrochloric acid. Incompatible with strong acids and bases, and with compounds of metals.

Health Hazard

Inhalation or contact with vapors, substance or decomposition products may cause severe injury or death. May produce irritating, toxic and/or corrosive gases. Runoff from fire control may cause pollution.

Fire Hazard

Self-decomposition or self-ignition may be triggered by heat, chemical reaction, friction or impact. May be ignited by heat, sparks or flames. Some may decompose explosively when heated or involved in a fire. May burn violently. Decomposition may be self-accelerating and produce large amounts of gases. Vapors or dust may form explosive mixtures with air.

Flammability and Explosibility

Non flammable

Safety Profile

Flammable solid. When heated to decomposition it emits toxic fumes of NOx.

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