Nomenclature
CAS number: 7681-38-1
Sulfuric acid sodium salt (1:1); sodium acid sulfate; sodium hydrogen sulfate; sodium pyrosulfate.
HNaO
4S; mol wt 120.06.
H 0.84%, Na 19.15%, O 53.30%, S 26.71%.
NaHSO
4.
Properties
Fused NaHSO4, hygroscopic pieces. d 2.435. mp ≈315°. Sol in 2 parts water,
1 part boiling water; dec by alcohol into sodium sulfate and free
H2SO4. Keep well closed.Derivative
Monohydrate.
Nomenclature
CAS number: 10034-88-5
HNaO
4S.H
2O; mol wt 138.08.
H 2.19%, Na 16.65%, O 57.94%, S 23.22%.
Properties
Odorless crystals. When strongly heated it changes
into pyrosulfate. Sol in about 0.8 part water; dec by alcohol into
sodium sulfate and free H2SO4. The aq soln
is strongly acid. pH of 0.1 molar soln: 1.4.Use
Fusion of minerals to make them sol for analysis;
for liberating CO
2 in carbonic acid baths. Technical grades
are used for pickling metals, carbonizing wool, bleaching and swelling
leather, manuf magnesia cements, etc.