Sodium Hydroxide: grade & concentration comparison

Alliance Chemical stocks 14 variants of Sodium Hydroxide (CAS 1310-73-2): 50%, ACS Grade 50%, 25%, ACS Grade 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 1310-73-2 · 14 variants

VariantGradeConcentrationHazardDocuments
1-gallon HDPE bottle of 50% Sodium Hydroxide (Caustic Soda) with chemical hazard diamonds, Alliance Chemical brand, greenSodium Hydroxide 50% Membrane Grade (Caustic Soda, Lye)—50%
GHS pictogram: CorrosiveGHS pictogram: Irritant / harmfulGHS pictogram: Health hazard
CLASS 8 · UN1824Danger
SDSTDSCOA
One-gallon HDPE jug of 50% Sodium Hydroxide (Caustic Soda) ACS grade safety instructions, and Alliance Chemical brandingSodium Hydroxide 50% Solution ACS GradeACS Grade50%
GHS pictogram: CorrosiveGHS pictogram: Irritant / harmfulGHS pictogram: Health hazard
CLASS 8 · UN1824Danger
SDSTDSCOA
One-gallon HDPE jug of Alliance Chemical 25% Sodium Hydroxide (Caustic Soda), technical grade, with blue safety labelSodium Hydroxide 25%—25%
GHS pictogram: CorrosiveGHS pictogram: Irritant / harmfulGHS pictogram: Health hazard
CLASS 8 · UN1824Danger
SDSTDSCOA
1-gallon HDPE jug of 25% Sodium Hydroxide (Caustic Soda) ACS grade Alliance Chemical brand, corrosive symbolSodium Hydroxide 25% ACS GradeACS Grade25%
GHS pictogram: CorrosiveGHS pictogram: Irritant / harmfulGHS pictogram: Health hazard
CLASS 8 · UN1824Danger
SDSTDSCOA
Sodium Hydroxide 10% ACS GradeSodium Hydroxide 10% ACS Grade——
GHS pictogram: CorrosiveGHS pictogram: Irritant / harmfulGHS pictogram: Health hazard
CLASS 8 · UN1824Danger
SDSTDSCOA
Sodium Hydroxide 10% Technical GradeSodium Hydroxide 10% Technical Grade——
GHS pictogram: CorrosiveGHS pictogram: Irritant / harmfulGHS pictogram: Health hazard
CLASS 8 · UN1824Danger
SDSTDSCOA
Sodium Hydroxide 15% ACS GradeSodium Hydroxide 15% ACS Grade——
GHS pictogram: CorrosiveGHS pictogram: Irritant / harmfulGHS pictogram: Health hazard
CLASS 8 · UN1824Danger
SDSTDSCOA
Sodium Hydroxide 15% Technical GradeSodium Hydroxide 15% Technical Grade——
GHS pictogram: CorrosiveGHS pictogram: Irritant / harmfulGHS pictogram: Health hazard
CLASS 8 · UN1824Danger
SDSTDSCOA
Sodium Hydroxide 20% ACS GradeSodium Hydroxide 20% ACS Grade——
GHS pictogram: CorrosiveGHS pictogram: Irritant / harmfulGHS pictogram: Health hazard
CLASS 8 · UN1824Danger
SDSTDSCOA
Sodium Hydroxide 20% Technical GradeSodium Hydroxide 20% Technical Grade——
GHS pictogram: CorrosiveGHS pictogram: Irritant / harmfulGHS pictogram: Health hazard
CLASS 8 · UN1824Danger
SDSTDSCOA
Sodium Hydroxide 30% ACS GradeSodium Hydroxide 30% ACS Grade——
GHS pictogram: CorrosiveGHS pictogram: Irritant / harmfulGHS pictogram: Health hazard
CLASS 8 · UN1824Danger
SDSTDSCOA
Sodium Hydroxide 30% Technical GradeSodium Hydroxide 30% Technical Grade——
GHS pictogram: CorrosiveGHS pictogram: Irritant / harmfulGHS pictogram: Health hazard
CLASS 8 · UN1824Danger
SDSTDSCOA
Sodium Hydroxide 5% ACS GradeSodium Hydroxide 5% ACS Grade——
GHS pictogram: CorrosiveGHS pictogram: Irritant / harmfulGHS pictogram: Health hazard
CLASS 8 · UN1824Danger
SDSTDSCOA
Sodium Hydroxide 5% Technical GradeSodium Hydroxide 5% Technical Grade——
GHS pictogram: CorrosiveGHS pictogram: Irritant / harmfulGHS pictogram: Health hazard
CLASS 8 · UN1824Danger
SDSTDSCOA

About these grades

All variants share CAS 1310-73-2. 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.