Methylamine: CH3NH2 Pwopriyete: Li rele tou monomethylamine, li se yon gaz oswa likid san koulè ki gen yon odè amonyak nan tanperati chanm. Li ka pran dife, ak vapè li yo ka fòme yon melanj eksplozif ak lè, ak limit eksplozyon nan 5% -21% (4.95% -20.75%). Relatif dansite 0.662, pwen k ap fonn -93.5 degre, pwen bouyi -6.3--6.7 degre, -19.7 degre (53.3kPa), -32.4 degre (26.7kPa), -43.7 degre (13.3kPa), -73.8 degre (Pa 5.033 degre), decomposition degre 2. (fèmen tas) 0 degre, pwen autoignition 430 degre, presyon vapè (25 degre) 202.65Pa, tanperati kritik 156.9 degre, presyon kritik 4.073kPa, endèks refraktif 1.351. Li pwodui lafimen apre liquéfaction epi li gen plis alkalin pase amonyak. Fasil idrosolubl nan dlo, etanòl, ak etè.
Ethylamine: CH3CH2NH2 Yon likid oswa gaz san koulè ki gen yon gwo odè amonyak; presyon vapè 53.32 kPa/20 degre; pwen flash:<-17.8℃; melting point -80.9℃; boiling point 16.6℃; solubility: soluble in water, ethanol, ether, etc.; density: relative density (water=1) 0.70; relative density (air=1) 1.56; stability: stable; hazard markings: 4 (flammable gas), 14 (toxic substance); main uses: used in dye synthesis and as an extractant, emulsifier, pharmaceutical raw material, reagent, etc.