Sigma-Aldrich
无水碳酸钠, powder, ≥99.5%, ACS reagent
Sigma-Aldrich
无水碳酸钠, ACS reagent, anhydrous, ≥99.5%, powder or granules
Sigma-Aldrich
无水碳酸钠, BioXtra, ≥99.0%
Sigma-Aldrich
无水碳酸钠, puriss., meets analytical specification of Ph. Eur., BP, NF, FCC, E500, anhydrous, 99.5-100.5% (calc. to the dried substance)
Sigma-Aldrich
间苯二胺, flakes, 99%
Supelco
碳酸钠溶液, Na2CO3 72 mM in water, IC eluent concentrate (20x) for Metrosep A Supp 7
Sigma-Aldrich
无水碳酸钠, ACS reagent (primary standard), anhydrous, 99.95-100.05% dry basis
Supelco
碳酸钠溶液, 0.1 M Na2CO3 in water, eluent concentrate for IC
Sigma-Aldrich
无水碳酸钠, ReagentPlus®, ≥99.5%
Supelco
无水碳酸钠, reference material for titrimetry, certified by BAM, ≥99.5%
Sigma-Aldrich
无水碳酸钠, anhydrous, powder, 99.999% trace metals basis
Sigma-Aldrich
碳酸钠 一水合物, ACS reagent, ≥99.5%
Sigma-Aldrich
碳酸钠 十水合物, puriss. p.a., ≥99.0% (T)
Sigma-Aldrich
碳酸钠 一水合物, ReagentPlus®, ≥99.5%
Sigma-Aldrich
无水碳酸钠, BioUltra, anhydrous, ≥99.5% (calc. on dry substance, T)
Sigma-Aldrich
碳酸钠 十水合物, 99.999% trace metals basis
Sigma-Aldrich
碳酸钠 一水合物, puriss., meets analytical specification of Ph. Eur., BP, NF, FCC, E500, 99.5-100.5% (ex dried subst.)
Sigma-Aldrich
无水碳酸钠, anhydrous, powder or granules, free-flowing, Redi-Dri™, ACS reagent, ≥99.5%
Sigma-Aldrich
无水碳酸钠, anhydrous, free-flowing, Redi-Dri™, ReagentPlus®, ≥99.5%
Sigma-Aldrich
无水碳酸钠, anhydrous, free-flowing, Redi-Dri™, ACS reagent (primary standard), 99.95-100.05% dry basis
Sigma-Aldrich
碳酸钠-12C, 99.9 atom % 12C