Sodium Bisulfite: grade & concentration comparison

Alliance Chemical stocks 7 variants of Sodium Bisulfite (CAS 7631-90-5): 40%, ACS Grade 40%, 25%. Compare grade, concentration, and transport classification below, then open the SDS, technical data sheet, or certificate of analysis for the variant you need.

CAS 7631-90-5 · 7 variants

VariantGradeConcentrationHazardDocuments
Alliance Chemical One-gallon HDPE container of Sodium Bisulfite 40% solution, with NFPA diamond, safety instructionsSodium Bisulfite 40%—40%
GHS pictogram: Irritant / harmful
CLASS 8 · UN2693Danger
SDSTDSCOA
1-gallon Alliance Chemical Sodium Bisulfite 40% ACS Grade HDPE jug with a handle and a screw cap.Sodium Bisulfite 40% ACS GradeACS Grade40%
GHS pictogram: Irritant / harmful
CLASS 8 · UN2693Danger
SDSTDSCOA
One 1-gallon HDPE jug of Alliance Chemical Sodium Bisulfite 25% Solution – Technical Grade with a white screw cap and handle.Sodium Bisulfite 25% Solution – Technical Grade (NaHSO3)—25%
GHS pictogram: Irritant / harmful
CLASS 8 · UN2693Warning
SDSTDSCOA
Sodium Bisulfite 10% ACS GradeSodium Bisulfite 10% ACS Grade——
GHS pictogram: CorrosiveGHS pictogram: Irritant / harmfulGHS pictogram: Health hazard
CLASS 8 · UN2693Danger
SDSTDSCOA
Sodium Bisulfite 10% Technical GradeSodium Bisulfite 10% Technical Grade——
GHS pictogram: CorrosiveGHS pictogram: Irritant / harmfulGHS pictogram: Health hazard
CLASS 8 · UN2693Danger
SDSTDSCOA
Sodium Bisulfite 15% ACS GradeSodium Bisulfite 15% ACS Grade——
GHS pictogram: CorrosiveGHS pictogram: Irritant / harmfulGHS pictogram: Health hazard
CLASS 8 · UN2693Danger
SDSTDSCOA
Sodium Bisulfite 15% Technical GradeSodium Bisulfite 15% Technical Grade——
GHS pictogram: CorrosiveGHS pictogram: Irritant / harmfulGHS pictogram: Health hazard
CLASS 8 · UN2693Danger
SDSTDSCOA

About these grades

All variants share CAS 7631-90-5. Grade and concentration determine purity specification and strength; each variant's exact specification, hazard classification, and a certificate of analysis are published by Alliance Chemical and linked above. Lot-specific certificates ship with every order.