27.9
H22-H2+H2-H411
P21-P2-P24-P241-P242-P24-P21-P24-P27-P271-P27-P28-P4+P4-P-P7+P78-P91-P51
GHS2,GHS7,GHS9
199
质量 (g) = 浓度 (mol/L) × 体积 (L) × (g/mol)