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Urea nitrate

Also known as: UREA NITRATE · 124-47-0 · Acidogen nitrate · Urea mononitrate

CAS No.
124-47-0
Formula
CH5N3O4
Molar mass
123.07 g/mol
PubChem CID
31295
GHS pictograms
GHS pictogram: ExplosiveExplosive
GHS pictogram: FlammableFlammable
GHS pictogram: Harmful / IrritantHarmful / Irritant
2D structure of Urea nitrate
2D structure · PubChem CID 31295

Summary

Urea nitrate (CH5N3O4), CAS 124-47-0. Common in labs and industry. Read on for hazards, storage, PPE and mixing rules.

Background

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Physical properties

152
152 °C (decomposes)

Sourced from PubChem Experimental Properties. Values may vary between sources and conditions.

Hazards

GHS pictogram: Explosive
Explosive (GHS01)

May explode when exposed to heat, shock or flame.

GHS pictogram: Flammable
Flammable (GHS02)

Ignites easily when exposed to a flame or spark.

GHS pictogram: Harmful / Irritant
Harmful / Irritant (GHS07)

May cause skin, eye or respiratory irritation.

Storage

Temperature

Keep at room temperature, below 30 °C, out of direct heat.

Ventilation

Store somewhere well-ventilated and away from any ignition source.

Containers

Metal drums or tinted glass, tightly sealed.

Keep away from

Strong acids, strong bases and powerful oxidizers.

Personal protective equipment

Gloves

Nitrile or butyl, at least 0.4 mm thick.

Eye protection

Safety goggles with side shields.

Respirator

A2 organic-vapor cartridge if the room isn't well ventilated.

Occupational exposure limits (HSE)

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EU harmonised classification (ECHA C&L)

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Transport

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FDA recalls & enforcement

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Compatibilities

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Practical safety notes

  • Explosive. Keep away from shock, friction, sparks and heat. Store in dedicated magazines.
  • Flammable. Keep away from open flames, hot surfaces and sparks. Ground containers when transferring.
  • Irritant / harmful. Ventilate the workspace and avoid skin contact.

Derived from the GHS classification shown above. These notes are generic guidance and do not replace the manufacturer's SDS or your local risk assessment.

FAQ

Is Urea nitrate flammable?+

Yes. Urea nitrate (CAS 124-47-0) carries the GHS02 flame pictogram. Keep it away from ignition sources, use non-sparking tools, and ground metal containers when transferring liquid.

What PPE should I wear when handling Urea nitrate?+

Safety glasses with side shields and nitrile gloves are the baseline. Ventilation should be sufficient to keep vapours below the occupational exposure limit. Check SDS section 8 for material-specific breakthrough times.

How should Urea nitrate be stored?+

Store Urea nitrate (CAS 124-47-0) in tightly closed original containers, in a cool, dry, well-ventilated area away from incompatible materials. Use a flammable-liquid cabinet and keep away from oxidizers and heat.

Is Urea nitrate dangerous for the environment?+

No specific environmental pictogram (GHS09) is listed in our records for Urea nitrate, but any chemical waste should be handled through your site's hazardous-waste procedure, not poured down the drain.

Where can I find the official Safety Data Sheet for Urea nitrate?+

Official, up-to-date SDS documents are published by each manufacturer (Sigma-Aldrich, Merck, Thermo Fisher, VWR, Carl Roth, etc.) and by regulators such as ECHA and NIOSH. This page is an educational summary and does not replace the manufacturer's SDS.

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