Fire-rated4 HourChemical Storage
FireSAFE 4X
- 4-Hour Fire-Rated
- 8 ft x 40 ft
- 57 Barrels
- 55 Gal Storage Drums
- 228 Square Feet storage
Nitric Acid, >40% Chemical Storage Specifications
Compliant storage and rental solutions for Nitric Acid, >40% (HNO3). EPA, OSHA, and NFPA guidance for containment, segregation, and fire protection — with rental buildings matched to this material.
Flammable hazardFlammable Storage
Chemical formula
Molecular formulaHNO3
About Nitric Acid, >40%
Nitric Acid, > 40% is a very corrosive mineral acid commonly known as aqua fortis (Latin for "strong water") and the spirit of niter. The pure chemical is colorless at room temperature but breaks down into nitrogen oxides and water leading to a yellowish tinge of older samples.
Structured hazard data
- Hazard class
- Oxidizing Liquids: Catergory 3
- Storage category
- Flammable Storage
- Flammable
- Yes
- Flash point
- See SDS
- Storage temperature
- Store in a cool, dry, well ventilated area.
- Recommended extinguishing agent
- Dry Chemical
- Compatibility / segregation
- Combustible material, Strong bases, Reducing Agent, Metals, Finely powderedmetals, Organic materials, Aldehydes, Alcohols, Cyanides, Ammonia, Strong reducingagents
- Vapors Category 3 Skin Corrosion/Irritation Category 1 A Serious Eye Damage/Eye Irritation Category 1 Corrosive to metals Category 1
Fire Suppression System
Dry Chemical fire suppression is recommended for Nitric Acid, >40%
Water
Dry Chemical · Recommended
CO₂ / Other
Guidance: Dry Chemical fire suppression is generally recommended for Nitric Acid, >40% (HNO3). *Please consult your raw material manufacturer's safety data sheet (SDS) and your local authority having jurisdiction to verify the most adequate fire suppression extinguisher for your specific storage or use.
Additional extinguishing notes: Fire In case of fire: Use CO2, dry chemical, or foam for extinction
Always confirm extinguishing agents against the manufacturer SDS and your authority having jurisdiction before specifying a rental building fire-suppression package.
Storage & segregation guidance
Compliant storage and rental solutions for Nitric Acid, >40% should account for its listed hazards (Oxidizing Liquids: Catergory 3), climate control needs ( Store in a cool, dry, well ventilated area.), and segregation requirements. Combustible material, Strong bases, Reducing Agent, Metals, Finely powderedmetals, Organic materials, Aldehydes, Alcohols, Cyanides, Ammonia, Strong reducingagents
Review NFPA 30 flammable liquid storage requirements and Fire-rated chemical storage rental when designing fire rating, containment, and building selection.
Properties: Melting Point/Range -41 °C / -41.8 °F Boiling Point, : 100°C
Matched to this chemical
Recommended storage solutions for Nitric Acid, >40%
Fire rating, footprint, and containment options from the US Hazmat Rentals fleet — sized for compliant chemical storage.
Fire-rated4 HourChemical StorageFireSAFE 4X
- 4-Hour Fire-Rated
- 8 ft x 10 ft
- 12 Barrels
- 55 Gal Storage Drums
- 48 Square Feet storage
Fire-rated4 hourChemical Tote StorageSingle Tote & Pallet Storage
- 4-Hour Fire-Rated 6' Deep 1-Tote-Deep
Material handling
How do you manage your bulk chemical storage?
US Hazmat Rentals buildings are designed around the primary storage formats teams use in the field — each path opens the matching storage solution on ushazmatrentals.com.
IBC Totes
Large-volume tote storage with forklift-ready handling inside compliant buildings.
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55 Gallon Drums
Drum and pallet-adjacent workflows sized for secondary containment and segregation.
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Palletized Materials
Pallet-in, pallet-out layouts for packaged chemicals and rack-ready inventory.
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Small Containers
Locker and cabinet-scale storage for cans, jars, and other small-format chemicals.
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We have solutions designed for your workflow process needs.
Frequently asked questions
How should Nitric Acid, >40% be stored?
Store Nitric Acid, >40% in EPA-, OSHA-, and NFPA-compliant containment suited to its hazards (Oxidizing Liquids: Catergory 3). Climate range guidance: Store in a cool, dry, well ventilated area.. Compatibility notes: Combustible material, Strong bases, Reducing Agent, Metals, Finely powderedmetals, Organic materials, Aldehydes, Alcohols, Cyanides, Ammonia, Strong reducingagents US Hazmat Rentals provides compliant chemical storage buildings available for rental.
Is Nitric Acid, >40% flammable?
Yes — Nitric Acid, >40% is flagged as a flammable hazard in this database (Yes). Flash point: see SDS. Use fire-rated storage and follow NFPA 30 / applicable flammable-liquid rules where they apply.
What hazard class is Nitric Acid, >40%?
Nitric Acid, >40% is listed as: Oxidizing Liquids: Catergory 3. - Vapors Category 3 Skin Corrosion/Irritation Category 1 A Serious Eye Damage/Eye Irritation Category 1 Corrosive to metals Category 1
What fire suppression is recommended for Nitric Acid, >40%?
Dry Chemical fire suppression is generally recommended for Nitric Acid, >40% (HNO3). *Please consult your raw material manufacturer's safety data sheet (SDS) and your local authority having jurisdiction to verify the most adequate fire suppression extinguisher for your specific storage or use.
Is compliant Nitric Acid, >40% storage available for rent?
Yes. US Hazmat Rentals offers EPA-, OSHA-, and NFPA-compliant chemical storage buildings and containment that can be matched to Nitric Acid, >40%. Request sizing and compliance guidance at https://ushazmatrentals.com/chemical-storage-quote-request/.