Piperazine Anhydrous

Piperazine Anhydrous

CAS Number:110‑85‑0

Chemical Formula:C₄H₁₀N₂

Product Introduction

A white to slightly yellow hygroscopic crystalline powder (pH ~12 in water). A cyclic diamine used as a buffer, pharmaceutical intermediate, gas scrubbing agent, rubber/vulcanization accelerator, epoxy curing agent, and corrosion inhibitor

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Physical & Chemical Properties

Property Value
Appearance White crystalline powder / flakes
Melting Point 109–112 °C
Boiling Point 145–146 °C (may sublime)
Density (bulk) ~1.10 g/cm³; small crystal density ~1.1 g/cm³
Solubility in Water ~150 g/L @20 °C; also soluble in alcohols
Vapor Pressure ~0.8 mmHg @20 °C
pKa ~9.8
NFPA (H/F/R) 2 / 2 / 0
UN / ADR UN 2579 Class 8 PG III

Applications

  • Pharma: anthelmintic, buffer, intermediate
  • Polymers: epoxy hardener, rubber accelerator
  • Gas scrubbing:CO₂, H₂S removal

Safety & Handling

  • Corrosive, harmful if ingested or inhaled; skin/eye burns (H314)
  • Wear PPE (acid/base resistant gloves, goggles), use ventilation
  • Store sealed, dry, away from strong oxidizers and acids

Packing Options

  • Lab: 5 g–1 kg glass bottles
  • Industrial: 25–100 kg drums; bulk packaging available

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