{"id":737,"date":"2025-05-02T17:16:17","date_gmt":"2025-05-02T21:16:17","guid":{"rendered":"https:\/\/pressbooks.bccampus.ca\/hydrometallurgy\/?post_type=chapter&p=737"},"modified":"2026-01-27T11:25:12","modified_gmt":"2026-01-27T16:25:12","slug":"some-common-units-used-in-hydrometallurgy","status":"publish","type":"chapter","link":"https:\/\/pressbooks.bccampus.ca\/hydrometallurgy\/chapter\/some-common-units-used-in-hydrometallurgy\/","title":{"raw":"Appendix A - Some Common Units Used in Hydrometallurgy","rendered":"Appendix A – Some Common Units Used in Hydrometallurgy"},"content":{"raw":"[table id=13 \/]\r\n\r\n[table id=66 \/]\r\n\r\n[table id=15 \/]","rendered":"\n\n\n\n\n\n\n\n\n\n\n
SI Base Units<\/th>\n<\/tr>\n
Physical quantity<\/th>\nSI name<\/th>\nSI unit abbreviation<\/th>\n<\/tr>\n<\/thead>\n
length<\/td>\nmetre<\/td>\nm<\/td>\n<\/tr>\n
mass<\/td>\nkilogram<\/td>\nkg<\/td>\n<\/tr>\n
time<\/td>\nsecond<\/td>\ns<\/td>\n<\/tr>\n
electric current<\/td>\nampere<\/td>\nA<\/td>\n<\/tr>\n
thermodynamic temperature<\/td>\nKelvin<\/td>\nK<\/td>\n<\/tr>\n
amount of substance<\/td>\nmole<\/td>\nmol<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
SI Derived Units<\/th>\n<\/tr>\n
Physical quantity<\/th>\nSI name<\/th>\nSI Unit<\/th>\nSI Base Units<\/th>\n<\/tr>\n<\/thead>\n
force<\/td>\nnewton<\/td>\nN<\/td>\nkg m s-2<\/td>\n<\/tr>\n
pressure<\/td>\npascal<\/td>\nPa<\/td>\nN m-2<\/td>\n<\/tr>\n
energy\/work\/heat<\/td>\njoule<\/td>\nJ<\/td>\nN m<\/td>\n<\/tr>\n
power<\/td>\nwatt<\/td>\nW<\/td>\nJ s-1<\/td>\n<\/tr>\n
electric charge 1<\/sup>
\ncharge of a mole of electrons<\/td>\n		coulomb
\nFaraday<\/td>\n		C
\nF<\/td>\n		A s
\n96484.6 C\/mole of electrons\n<\/td>\n<\/tr>\n
electric potential (electromotive force)<\/td>\nvolt<\/td>\nV<\/td>\nJ C-1<\/td>\n<\/tr>\n
electric resistance<\/td>\nohm<\/td>\n\uf057<\/td>\nV A-1<\/td>\n<\/tr>\n
Celsius temperature<\/td>\ndegrees Celsius<\/td>\n\u00b0C<\/td>\nK (1\u00b0C = 1 K)<\/td>\n<\/tr>\n<\/tbody>\n
1<\/sup>The elementary charge of an electron or a proton = 1.60219 x 10-19 C<\/th>\n<\/tr>\n<\/tfoot>\n<\/table>\n

<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Other Common Units<\/th>\n<\/tr>\n
Physical quantity<\/th>\nUnit name<\/th>\nSymbol<\/th>\nValue in SI units<\/th>\n<\/tr>\n<\/thead>\n
time<\/td>\nminute, hour, day, month, year<\/td>\nmin, h, d, mon, y<\/td>\n60, 3600, 86400; 1 y = 365 d<\/td>\n<\/tr>\n
length<\/td>\ncentimeter, millimeter<\/td>\ncm, mm<\/td>\n0.01 m, 0.001 m<\/td>\n<\/tr>\n
length<\/td>\nmicron, nanometer<\/td>\n\uf06dm, nm<\/td>\n10-6 m, 10-9 m<\/td>\n<\/tr>\n
volume<\/td>\nlitre, millilitre<\/td>\nL, mL<\/td>\n10-3 m3, 10-6 m3<\/td>\n<\/tr>\n
volume<\/td>\nlitre<\/td>\ndm3<\/td>\n(0.1 m)3 = 0.001 m3<\/td>\n<\/tr>\n
mass<\/td>\ntonne, gram, milligram<\/td>\nt, g, mg<\/td>\n103 kg, 10-3 kg, 10-6 kg<\/td>\n<\/tr>\n
mass<\/td>\nTroy ounce<\/td>\noz Troy<\/td>\n0.03110349 kg<\/td>\n<\/tr>\n
concentration in solution<\/td>\nmolar<\/td>\nM<\/td>\nmol\/L or mol\/dm3<\/td>\n<\/tr>\n
concentration in solution<\/td>\nmolal<\/td>\nm<\/td>\nmol\/kg (kg of solvent)<\/td>\n<\/tr>\n
concentration in solution<\/td>\n(none)<\/td>\ng\/L<\/td>\n<\/td>\n<\/tr>\n
density<\/td>\n(none)<\/td>\ng\/mL<\/td>\n103 kg m-3<\/td>\n<\/tr>\n
pressure<\/td>\nkilopascal, atmosphere, pounds per square inch<\/td>\nkPa, atm, PSI<\/td>\n103 Pa, 101325 Pa, 6894.76 Pa<\/td>\n<\/tr>\n
pressure<\/td>\nbar, atmosphere, Torr = mm Hg (1 atm = 760 Torr)<\/td>\nbar, atm, Torr<\/td>\n105 Pa, 133.322 Pa<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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