Description
1-Methylpiperazine Chemical Properties
| Melting point | -6 °C |
| Boiling point | 138 °C(lit.) |
| density | 0.903 g/mL at 25 °C(lit.) |
| vapor density | 3.5 (vs air) |
| vapor pressure | 12 hPa (20 °C) |
| refractive index | n20/D 1.466(lit.) |
| Fp | 108 °F |
| storage temp. | 2-8°C |
| solubility | Chloroform (Soluble), Methanol (Soluble) |
| pka | pK1:4.94(+2);pK2:9.09(+1) (25°C,μ=0.1) |
| form | Liquid |
| color | Clear |
| Specific Gravity | 0.903 |
| PH | 11-12 (50g/l, H2O, 20℃) |
| explosive limit | 1.2-9.9%(V) |
| Water Solubility | soluble |
| Sensitive | Hygroscopic |
| BRN | 102724 |
| InChIKey | PVOAHINGSUIXLS-UHFFFAOYSA-N |
| LogP | -0.57 at 25℃ |
| CAS DataBase Reference | 109-01-3(CAS DataBase Reference) |
| NIST Chemistry Reference | Piperazine, 1-methyl-(109-01-3) |
| EPA Substance Registry System | Piperazine, 1-methyl- (109-01-3) |
Safety Information
| Hazard Codes | T,F,C,Xi |
| Risk Statements | 10-21-23-34-36/37/38-20/21 |
| Safety Statements | 16-26-36/37/39-45-36 |
| RIDADR | UN 2734 8/PG 2 |
| WGK Germany | 2 |
| RTECS | TM1225000 |
| Autoignition Temperature | 320 °C |
| Hazard Note | Flammable/Toxic/Corrosive/Store under nitrogen |
| TSCA | Yes |
| HazardClass | 3 |
| PackingGroup | III |
| HS Code | 29335995 |
| Toxicity | LD50 orally in Rabbit: 2547 mg/kg LD50 dermal Rabbit 1341 mg/kg |
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