2-Methylpiperazine
2-Methylpiperazine ??
- ???
- 61-63 °C (lit.)
- ?? ?
- 155 °C/763 mmHg (lit.)
- ??
- 0.817 g/cm
- ???
- 1.4378 (estimate)
- ???
- 149 °F
- ?? ??
- Keep in dark place,Inert atmosphere,Room temperature
- ???
- 435g/l
- ?? ?? (pKa)
- pK1:5.62(+2);pK2:9.60(+1) (25°C)
- ??? ??
- ??? ??, ?? ?/?? ???
- ??
- ???? ?????
- ??????(pH)
- 11-12 (50g/l, H2O)
- ???
- 78g/100mL(25℃)
- ??
- Air Sensitive & Hygroscopic
- BRN
- 383566
- InChIKey
- JOMNTHCQHJPVAZ-UHFFFAOYSA-N
- CAS ??????
- 109-07-9(CAS DataBase Reference)
- NIST
- Piperazine, 2-methyl-(109-07-9)
- EPA
- Piperazine, 2-methyl- (109-07-9)
??
- ?? ? ?? ??
- ?? ? ???? ?? (GHS)
| ??? ?? |
F,Xi |
|
|
| ?? ???? ?? |
11-36/37/38 |
|
|
| ????? |
16-26-36/37/39-36 |
|
|
| ????(UN No.) |
UN 1325 4.1/PG 2 |
|
|
| WGK ?? |
2 |
|
|
| RTECS ?? |
TM1225020 |
|
|
| F ?????? |
10 |
|
|
| TSCA |
Yes |
|
|
| ?? ?? |
4.1 |
|
|
| ???? |
III |
|
|
| HS ?? |
29339900 |
|
|
| ????(GHS): |
 
|
| ?? ?: |
Danger |
| ??·?? ??: |
| ?? |
??·?? ?? |
?? ?? |
?? |
?? ? |
?? ?? |
P- ?? |
| H228 |
??? ?? |
??? ?? |
?? 1
?? 2 |
??
?? |
|
P210, P240,P241, P280, P370+P378 |
| H314 |
??? ?? ??? ?? ??? ??? |
????? ?? ????? |
?? 1A, B, C |
?? |
|
P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501 |
|
| ??????: |
| P210 |
?·???·??·????? ????? - ?? ???. |
| P240 |
??? ????? ?? ? ??????. |
| P260 |
??·?·??·???·??·...·????? ???? ???. |
| P280 |
????/???/???/?????? ?????. |
| P303+P361+P353 |
??(?? ????)? ??? ??? ?? ??? ??? ????? ??? ?? ????/?????. |
| P305+P351+P338 |
?? ??? ? ?? ?? ???? ????. ???? ?????? ?????. ?? ????. |
|
| NFPA 704 |
|
|
|
2-Methylpiperazine C??? ??, ??, ??
??? ??
white to yellow crystalline powder and chunks
Purification Methods
Purify it by zone melting and by distillation. It is hygroscopic. The picrate has m 275-276o. [Beilstein 23 II 16, 23 III/IV 393, 23/3 V 267.]
2-Methylpiperazine ?? ?? ? ???
???
?? ??
2-Methylpiperazine ?? ??
???( 454)?? ??
2-Methylpiperazine ?? ??:
