Piperazine

Melting point :109-112 °C (lit.)
Boiling point :145-146 °C (lit.)
Density :1,1 g/cm³
bulk density :400kg/m3
vapor pressure :0.8 mm Hg ( 20 °C)
FEMA :4250 | PIPERAZINE
refractive index :1.4460
Flash point :65 °C
storage temp. :Store below +30°C.
solubility :H₂O: 0.1 M at 20 °C, clear, colorless
form :Crystalline Flakes
pka :9.83(at 23℃)
color :White to slightly yellow
PH :11.0-12.5 (25℃, 0.1M in H2O)
Odor :at 0.10 % in dipropylene glycol. ammoniacal
Odor Type :ammoniacal
biological source :rabbit
explosive limit :14%
Water Solubility :150 g/L (20 ºC)
Sensitive :Air Sensitive & Hygroscopic
λmax :λ: 260 nm Amax: 0.035
λ: 280 nm Amax: 0.010 Merck :14,7464
JECFA Number :1615
BRN :102555
Henry's Law Constant :4.5×10³ mol/(m³Pa) at 25℃, Nguyen (2013)
Exposure limits :ACGIH: TWA 0.03 ppm
Stability :Stable. Hygroscopic. Light sensitive. Flammable. Incompatible with strong oxidizing agents.
InChI :1S/C4H10N2/c1-2-6-4-3-5-1/h5-6H,1-4H2
InChIKey :GLUUGHFHXGJENI-UHFFFAOYSA-N
SMILES :C1CNCCN1
LogP :-1.24 at 20-25℃
CAS DataBase Reference :110-85-0(CAS DataBase Reference)
NIST Chemistry Reference :Piperazine(110-85-0)
EPA Substance Registry System :Piperazine (110-85-0)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H303 May be harmfulif swallowed Acute toxicity,oral Category 5 P312 H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501 H317 May cause an allergic skin reaction Sensitisation, Skin Category 1 Warning P261, P272, P280, P302+P352,P333+P313, P321, P363, P501 H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled Sensitisation, respiratory Category 1 Danger P261, P285, P304+P341, P342+P311,P501 H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning H361 Suspected of damaging fertility or the unborn child Reproductive toxicity Category 2 Warning P201, P202, P281, P308+P313, P405,P501 H370 Causes damage to organs Specific target organ toxicity, single exposure Category 1 Danger P260, P264, P270, P307+P311, P321,P405, P501 H372 Causes damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 1 Danger P260, P264, P270, P314, P501 H402 Harmful to aquatic life Hazardous to the aquatic environment, acute hazard Category 3
Precautionary statements:	P201 Obtain special instructions before use. P202 Do not handle until all safety precautions have been read and understood. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P272 Contaminated work clothing should not be allowed out of the workplace. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P284 Wear respiratory protection. P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P333+P313 IF SKIN irritation or rash occurs: Get medical advice/attention. P342+P311 IF experiencing respiratory symptoms: call a POISON CENTER or doctor/physician. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P405 Store locked up. P501 Dispose of contents/container to..…