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
Methyl Mercaptan Chemical Storage Specifications
Compliant storage and rental solutions for Methyl Mercaptan (CH4S). EPA, OSHA, and NFPA guidance for containment, segregation, and fire protection — with rental buildings matched to this material.
Flammable hazardFlammable Storage
Chemical formula
Molecular formulaCH4S
About Methyl Mercaptan
Methyl mercaptan is a flammable colorless gas withunpleasant odor described as rotten cabbage. It is used as a gas odorant; an intermediate in the production of pesticides, jet fuels, and plastics; and in the synthesis of the amino acid methionine.
Structured hazard data
- Hazard class
- Flammable Gas Category 1
- Storage category
- Flammable Storage
- Flammable
- Yes
- Flash point
- Closed cup: -18.15°C (-0.67°F) Open cup: <-17.78°C (<-0.004°F)
- Storage temperature
- Ambient
- Recommended extinguishing agent
- Dry Chemical
- Compatibility / segregation
- incompatible with strong oxidizers, bleaches, copper, aluminum, and nickel-copper alloys.
GASES UNDER PRESSURE - Liquefied gas ACUTE TOXICITY (inhalation) - Category 3 AQUATIC HAZARD (ACUTE) - Category 1 AQUATIC HAZARD (LONG-TERM) - Category 1
Fire Suppression System
Dry Chemical fire suppression is recommended for Methyl Mercaptan
Water
Dry Chemical · Recommended
CO₂ / Other
Guidance: Dry Chemical fire suppression is generally recommended for Methyl mercaptan (CH4S). *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: Use appropriate agents
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 Methyl mercaptan should account for its listed hazards (Flammable Gas Category 1), climate control needs (Ambient), and segregation requirements. incompatible with strong oxidizers, bleaches, copper, aluminum, and nickel-copper alloys.
Review NFPA 30 flammable liquid storage requirements and Fire-rated chemical storage rental when designing fire rating, containment, and building selection.
Properties: Boiling Point: 5.9 C Melting/freezing point: -123 C
Matched to this chemical
Recommended storage solutions for Methyl Mercaptan
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 Methyl mercaptan be stored?
Store Methyl mercaptan in EPA-, OSHA-, and NFPA-compliant containment suited to its hazards (Flammable Gas Category 1). Climate range guidance: Ambient. Compatibility notes: incompatible with strong oxidizers, bleaches, copper, aluminum, and nickel-copper alloys. US Hazmat Rentals provides compliant chemical storage buildings available for rental.
Is Methyl mercaptan flammable?
Yes — Methyl mercaptan is flagged as a flammable hazard in this database (Yes). Flash point: Closed cup: -18.15°C (-0.67°F) Open cup: <-17.78°C (<-0.004°F). Use fire-rated storage and follow NFPA 30 / applicable flammable-liquid rules where they apply.
What hazard class is Methyl mercaptan?
Methyl mercaptan is listed as: Flammable Gas Category 1. GASES UNDER PRESSURE - Liquefied gas ACUTE TOXICITY (inhalation) - Category 3 AQUATIC HAZARD (ACUTE) - Category 1 AQUATIC HAZARD (LONG-TERM) - Category 1
What fire suppression is recommended for Methyl mercaptan?
Dry Chemical fire suppression is generally recommended for Methyl mercaptan (CH4S). *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 Methyl mercaptan storage available for rent?
Yes. US Hazmat Rentals offers EPA-, OSHA-, and NFPA-compliant chemical storage buildings and containment that can be matched to Methyl mercaptan. Request sizing and compliance guidance at https://ushazmatrentals.com/chemical-storage-quote-request/.