Sigma-Aldrich
氢氧化钠, ACS reagent, ≥97.0%, pellets
Sigma-Aldrich
氢氧化钠, puriss., meets analytical specification of Ph. Eur., BP, NF, E524, 98-100.5%, pellets
Sigma-Aldrich
氢氧化钠, puriss. p.a., ACS reagent, reag. Ph. Eur., K ≤0.02%, ≥98%, pellets
Sigma-Aldrich
氢氧化钠, pellets, semiconductor grade, 99.99% trace metals basis
Sigma-Aldrich
氢氧化钠, puriss. p.a., ACS reagent, K ≤0.02%, ≥98.0% (T), pellets
Sigma-Aldrich
氢氧化钠 溶液, purum, ≥32%