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Piperazine dihydrochloride

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Synonyms & Trade Names
Piperazine hydrochloride [Note: The monochloride, C4H10N2 HCl, is also commercially available.]
CAS No.
142-64-3
RTECS No.
TL4025000
DOT ID & Guide
Formula
C₄H₁₀N₂ • 2HCl
Conversion
IDLH
N.D.
See: IDLH INDEX
Exposure Limits
NIOSH REL
TWA 5 mg/m3
OSHA PEL
none See Appendix G
Measurement Methods
None available
See: NMAM or OSHA Methods
Physical Description
White to cream-colored needles or powder.
Molecular Weight
159.1
Boiling Point
?
Melting Point
635°F
Solubility
41%
Vapor Pressure
?
Ionization Potential
?
Specific Gravity
?
Flash Point
?
Upper Explosive Limit
?
Lower Explosive Limit
?
Combustible Solid, but does not ignite easily.
Incompatibilities & Reactivities
Water [Note: Slightly hygroscopic (i.e., absorbs moisture from the air).]
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
irritation eyes, skin, respiratory system; skin burns, sensitization; asthma; gastrointestinal upset, headache, nausea, vomiting, incoordination, muscle weak
Target Organs
Eyes, skin, respiratory system, central nervous system
Personal Protection/Sanitation
(See protection codes)
Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:When contaminated
Remove:When wet or contaminated
Change:Daily
Provide:Eyewash, Quick drench
First Aid
(See procedures)
Eye:Irrigate immediately
Skin:Water flush immediately
Breathing:Respiratory support
Swallow:Medical attention immediately
Respirator Recommendations

Not available.

Important additional information about respirator selection

See also
INTRODUCTION
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health