N-Methyl-2-Pyrrolidone (NMP)

Formula: C5H9NO | CAS: 872-50-4

What is NMP?

N-Methyl-2-Pyrrolidone (NMP) (CAS: 872-50-4) is a versatile solvent renowned for its solvency power and high boiling point. Widely employed in various industrial sectors, NMP’s applications span manufacturing, pharmaceuticals, electronics, coatings, and petrochemicals. It is

Effects of Short & Long term exposure to hydrogen sulfide

SHORT TERM EXPOSURE: (ACUTE)
Exposure to NMP, even for a short duration, can cause acute health effects depending on the level and mode of exposure (inhalation, dermal contact, or ingestion) including:

  • Respiratory Effects
  • Neurological Symptoms
  • Skin and Eye Irritation
  • Gastrointestinal Distress

LONG TERM EXPOSURE: (CHRONIC)
Chronic exposure to NMP, especially in occupational or high-exposure environments can result in more severe and potentially irreversible health effects such as:

  • Central Nervous System (CNS) Damage
  • Reproductive and Developmental Toxicity
  • Dermatological Effects
  • Organ Toxicity
  • Carcinogenic Potential
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Gas Factsheet

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Everything you need to know about detecting hydrogen sulfide

Our Gas Factsheets which is available to download below provides you with key information on the exposure limits and the locations of where potentially harmful gases can occur. We also share information on gas detection monitoring techniques and equipment that can help you manage gas detection in the workplace, for worker and site safety.

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Detecting Hydrogen Sulfide

Formula: H2S | CAS: 7783-06-4

Synonyms: hydrogen sulfide, hydrosulfuric acid, sewer gas, sulfuretted hydrogen, hydrogen sulphide

Specification Value/Information
Formula H2S
CAS no. 7783-06-4
Gas Response Factor, 11.7 eV 1.50
Gas Response Factor, 10.6 eV 4.00
Gas Response Factor, 10.0 eV ZR
ppm per mg/m⁻³, (20 °C, 1 bar) 0.706
Molecular Weight, g/mole 34.1
Melting point, °C -85
Boiling point, °C -60
Flash point, °C -
Upper Explosive Limit, % 50.2
Specification Value/Information
Lower Explosive Limit, % 3.9
Density, g.cm⁻³ 1.496
Ionisation Energy, eV 10.46
EH40 TWA, ppm 5
EH40 TWA, mg.m⁻³ 7
EH40 STEL, ppm 10
EH40 STEL, mg.m⁻³ 14
NIOSH IDLH, ppm 100
OSHA TWA PEL, ppm 10
OSHA TWA PEL, mg.m⁻³ 15

Related Products

Hydrogen Sulfide Single Gas Detector – Wearable H2S detector

This portable and cost-effective detector provides you with personal & instantaneous alarms for critical safety scenarios regarding Hydrogen Sulfide

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