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Bases

Bases of various chemical compositions, pH values, purities, reagent grades, and quantities suited for a wide variety of laboratory applications. Products are available in solid and liquid forms.

Bases are usually thought of as the chemical opposite of acids. They are commonly defined as compounds that form aqueous solutions that taste bitter, have a high pH (>7), cause litmus paper to turn blue, are slippery to the touch, and react with acids to form water and salts.

In the laboratory, bases are used as reagents or catalysts in many chemical reactions, and some are great conductors of electricity. In an industry setting, bases are used in many applications such as the manufacture of soap, paper, bleaching powder, and the synthetic fiber rayon.

Chemically, bases can be classified as:

  • Arrhenius, substances that produce hydroxide (OH−) ions in aqueous solutions, and include sodium hydroxide (lye or caustic soda), potassium hydroxide (or caustic potash), and ammonium hydroxide (or aqua ammonia) Brønsted-Lowry, substances such as ammonia (NH3) that can accept a proton or hydrogen ion
  • Lewis, compounds such as ammonia, alkyl or aryl amines, and pyridines and pyrimidines that are electron pair donors

NOTE: A Lewis base is also a Brønsted-Lowry base, but a Lewis acid is not necessarily also a Brønsted-Lowry acid.

Sodium Hydroxide (429)
Potassium Hydroxide (155)
Ammonium Hydroxide (124)

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1 – 15 of 365 results
1
Promotions Available

Sodium Hydroxide Solution 0.1M (0.1N), NIST Standard Solution ready to use, for volumetric analysis, meets analytical specification of Ph.Eur., BP, Fisher Chemical™

CAS: 1310-73-2 Molecular Formula: HNaO Molecular Weight (g/mol): 39.997 MDL Number: 3548 InChI Key: HEMHJVSKTPXQMS-UHFFFAOYSA-M Synonym: sodium hydroxide,caustic soda,sodium hydrate,white caustic,soda lye,aetznatron,ascarite,sodium hydroxide na oh,sodium hydroxide solution,soda, caustic PubChem CID: 14798 ChEBI: CHEBI:32145 IUPAC Name: sodium;hydroxide SMILES: [OH-].[Na+]

EDGE
PubChem CID 14798
CAS 1310-73-2
Molecular Weight (g/mol) 39.997
ChEBI CHEBI:32145
MDL Number 3548
SMILES [OH-].[Na+]
Synonym sodium hydroxide,caustic soda,sodium hydrate,white caustic,soda lye,aetznatron,ascarite,sodium hydroxide na oh,sodium hydroxide solution,soda, caustic
IUPAC Name sodium;hydroxide
InChI Key HEMHJVSKTPXQMS-UHFFFAOYSA-M
Molecular Formula HNaO
2

Sodium hydroxide, 0.1 N standard solution

Sodium hydroxide, HNaO, CAS Number-1310-73-2, 7732-18-5, aetznatron, ascarite, caustic soda, soda, caustic, soda lye, sodium hydrate, sodium hydroxide, sodium hydroxide na oh, sodium hydroxide solution, white caustic, 1L, CHEBI:32145, Beige to White, 0.0995 to 0.1005N (20 deg.C), 1.0000g/mL | CAS: 1310-73-2 | HNaO | 39.997 g/mol

EDGE
Linear Formula NaOH
Molecular Weight (g/mol) 39.997
ChEBI CHEBI:32145
Physical Form Crystalline Powder
Grade Pure
SMILES [OH-].[Na+]
Merck Index 15, 8761
Concentration 0.0995 to 0.1005N (20°C)
InChI Key HEMHJVSKTPXQMS-UHFFFAOYSA-M
Density 1.0000g/mL
PubChem CID 14798
Name Note 0.1 N Standard Solution
Fieser 01,1083; 05,616; 07,336; 08,460
CAS 7732-18-5
MDL Number MFCD00003548
Synonym sodium hydroxide,caustic soda,sodium hydrate,white caustic,soda lye,aetznatron,ascarite,sodium hydroxide na oh,sodium hydroxide solution,soda, caustic
IUPAC Name sodium;hydroxide
Molecular Formula HNaO
Formula Weight 40
3

Sodium Hydroxide Ready-to-use standardized solution 0.1M, Fisher Chemical™
BIOPHARMA

EDGE
4

Sodium hydroxide, 0.2 N standard solution

CAS: 1310-73-2 | HNaO | 39.997 g/mol

EDGE
Linear Formula NaOH
Molecular Weight (g/mol) 39.997
ChEBI CHEBI:32145
InChI Key HEMHJVSKTPXQMS-UHFFFAOYSA-M
Density 1.0100g/mL
PubChem CID 14798
Fieser 01,1083; 05,616; 07,336; 08,460
RTECS Number WB4900000
Formula Weight 39.99
Color Colorless
Physical Form Liquid
Chemical Name or Material Sodium hydroxide
SMILES [OH-].[Na+]
Merck Index 15, 8761
Concentration 0.1996 to 0.2004N
CAS 7732-18-5
Health Hazard 3 GHS P Statement:
Wear protective gloves/protective clothing/eye protection/face protection.
IF ON SKIN: Wash with plenty of soap and water.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

WARNING: The information provided on this web site was developed in compliance with European Union (EU) regulations and is correct to the best of our knowledge, information and belief at the date of its publication. The information given is designed only as a guide for safe handling and use. It is not to be considered as either a warranty or quality specification.
MDL Number MFCD00003548
Health Hazard 2 GHS H Statement:
Causes skin irritation.
Causes serious eye irritation.
Packaging Plastic bottle
Solubility Information Solubility in water: soluble.
Health Hazard 1 Warning
Synonym sodium hydroxide,caustic soda,sodium hydrate,white caustic,soda lye,aetznatron,ascarite,sodium hydroxide na oh,sodium hydroxide solution,soda, caustic
TSCA TSCA
IUPAC Name sodium;hydroxide
Molecular Formula HNaO
EINECS Number 215-185-5
Specific Gravity 1.01
5
Promotions Available

Potassium Hydroxide, Certified AR for Analysis, Pellets, meets analytical specification of Ph.Eur., BP, Fisher Chemical™

CAS: 1310-58-3 Molecular Formula: HKO Molecular Weight (g/mol): 56.11 MDL Number: MFCD00003553 InChI Key: KWYUFKZDYYNOTN-UHFFFAOYSA-M Synonym: potassium hydroxide,caustic potash,potash lye,potassium hydrate,hydroxyde de potassium,potassa,potasse caustique,potassium hydroxide k oh,potassium hydroxide solution,caswell no. 693 PubChem CID: 14797 ChEBI: CHEBI:32035 SMILES: [OH-].[K+]

PubChem CID 14797
CAS 1310-58-3
Molecular Weight (g/mol) 56.11
ChEBI CHEBI:32035
MDL Number MFCD00003553
SMILES [OH-].[K+]
Synonym potassium hydroxide,caustic potash,potash lye,potassium hydrate,hydroxyde de potassium,potassa,potasse caustique,potassium hydroxide k oh,potassium hydroxide solution,caswell no. 693
InChI Key KWYUFKZDYYNOTN-UHFFFAOYSA-M
Molecular Formula HKO
6
Promotions Available

Sodium Hydroxide Solution 1M (1N), NIST Standard Solution Ready To Use, for Volumetric Analysis, Meets Analytical Specification Of pH.Eur., Bp, Fisher Chemical™

CAS: 1310-73-2 Molecular Formula: HNaO Molecular Weight (g/mol): 39.997 MDL Number: 3548 InChI Key: HEMHJVSKTPXQMS-UHFFFAOYSA-M Synonym: sodium hydroxide,caustic soda,sodium hydrate,white caustic,soda lye,aetznatron,ascarite,sodium hydroxide na oh,sodium hydroxide solution,soda, caustic PubChem CID: 14798 ChEBI: CHEBI:32145 IUPAC Name: sodium;hydroxide SMILES: [OH-].[Na+]

PubChem CID 14798
CAS 1310-73-2
Molecular Weight (g/mol) 39.997
ChEBI CHEBI:32145
MDL Number 3548
SMILES [OH-].[Na+]
Synonym sodium hydroxide,caustic soda,sodium hydrate,white caustic,soda lye,aetznatron,ascarite,sodium hydroxide na oh,sodium hydroxide solution,soda, caustic
IUPAC Name sodium;hydroxide
InChI Key HEMHJVSKTPXQMS-UHFFFAOYSA-M
Molecular Formula HNaO
7
Promotions Available

Sodium Hydroxide Solution 10M (10N) ≈40 (w/v), Standard Solution Ready To Use, for Volumetric Analysis

CAS: 1310-73-2 Molecular Formula: HNaO Molecular Weight (g/mol): 39.997 MDL Number: 3548 InChI Key: HEMHJVSKTPXQMS-UHFFFAOYSA-M Synonym: sodium hydroxide,caustic soda,sodium hydrate,white caustic,soda lye,aetznatron,ascarite,sodium hydroxide na oh,sodium hydroxide solution,soda, caustic PubChem CID: 14798 ChEBI: CHEBI:32145 IUPAC Name: sodium;hydroxide SMILES: [OH-].[Na+]

PubChem CID 14798
CAS 1310-73-2
Molecular Weight (g/mol) 39.997
ChEBI CHEBI:32145
MDL Number 3548
SMILES [OH-].[Na+]
Synonym sodium hydroxide,caustic soda,sodium hydrate,white caustic,soda lye,aetznatron,ascarite,sodium hydroxide na oh,sodium hydroxide solution,soda, caustic
IUPAC Name sodium;hydroxide
InChI Key HEMHJVSKTPXQMS-UHFFFAOYSA-M
Molecular Formula HNaO
8
Promotions Available

Sodium Hydroxide Solution (50% w/w/Certified), Fisher Chemical™

CAS: 1310-73-2 Molecular Formula: HNaO Molecular Weight (g/mol): 39.997 MDL Number: MFCD00003548 InChI Key: HEMHJVSKTPXQMS-UHFFFAOYSA-M Synonym: sodium hydroxide,caustic soda,sodium hydrate,white caustic,soda lye,aetznatron,ascarite,sodium hydroxide na oh,sodium hydroxide solution,soda, caustic PubChem CID: 14798 ChEBI: CHEBI:32145 IUPAC Name: sodium;hydroxide SMILES: [OH-].[Na+]

PubChem CID 14798
CAS 1310-73-2
Molecular Weight (g/mol) 39.997
ChEBI CHEBI:32145
MDL Number MFCD00003548
SMILES [OH-].[Na+]
Synonym sodium hydroxide,caustic soda,sodium hydrate,white caustic,soda lye,aetznatron,ascarite,sodium hydroxide na oh,sodium hydroxide solution,soda, caustic
IUPAC Name sodium;hydroxide
InChI Key HEMHJVSKTPXQMS-UHFFFAOYSA-M
Molecular Formula HNaO
9
Promotions Available

Sodium Hydroxide, Certified AR for Analysis, Pellets, meets analytical specification of Ph.Eur., BP, Fisher Chemical™

CAS: 1310-73-2 Molecular Formula: HNaO Molecular Weight (g/mol): 39.997 MDL Number: 3548 InChI Key: HEMHJVSKTPXQMS-UHFFFAOYSA-M Synonym: sodium hydroxide,caustic soda,sodium hydrate,white caustic,soda lye,aetznatron,ascarite,sodium hydroxide na oh,sodium hydroxide solution,soda, caustic PubChem CID: 14798 ChEBI: CHEBI:32145 IUPAC Name: sodium;hydroxide SMILES: [OH-].[Na+]

PubChem CID 14798
CAS 1310-73-2
Molecular Weight (g/mol) 39.997
ChEBI CHEBI:32145
MDL Number 3548
SMILES [OH-].[Na+]
Synonym sodium hydroxide,caustic soda,sodium hydrate,white caustic,soda lye,aetznatron,ascarite,sodium hydroxide na oh,sodium hydroxide solution,soda, caustic
IUPAC Name sodium;hydroxide
InChI Key HEMHJVSKTPXQMS-UHFFFAOYSA-M
Molecular Formula HNaO
10
Promotions Available

Ammonia Solution, 25%, Certified AR for Analysis, d=0.91, Fisher Chemical™

CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N IUPAC Name: amine hydrate SMILES: N.O

CAS 1336-21-6
Molecular Weight (g/mol) 35.05
MDL Number MFCD00066650
SMILES N.O
IUPAC Name amine hydrate
InChI Key VHUUQVKOLVNVRT-UHFFFAOYSA-N
Molecular Formula H5NO
12
Promotions Available

Potassium hydroxide solution, 0.1M, Honeywell Fluka™

CAS: 1310-58-3 Molecular Formula: HKO Molecular Weight (g/mol): 56.11 MDL Number: MFCD00003553 InChI Key: KWYUFKZDYYNOTN-UHFFFAOYSA-M Synonym: potassium hydroxide,caustic potash,potash lye,potassium hydrate,hydroxyde de potassium,potassa,potasse caustique,potassium hydroxide k oh,potassium hydroxide solution,caswell no. 693 PubChem CID: 14797 ChEBI: CHEBI:32035 IUPAC Name: potassium;hydroxide SMILES: [OH-].[K+]

EDGE
PubChem CID 14797
CAS 1310-58-3
Molecular Weight (g/mol) 56.11
ChEBI CHEBI:32035
MDL Number MFCD00003553
SMILES [OH-].[K+]
Synonym potassium hydroxide,caustic potash,potash lye,potassium hydrate,hydroxyde de potassium,potassa,potasse caustique,potassium hydroxide k oh,potassium hydroxide solution,caswell no. 693
IUPAC Name potassium;hydroxide
InChI Key KWYUFKZDYYNOTN-UHFFFAOYSA-M
Molecular Formula HKO
13
Promotions Available

Potassium Hydroxide, Extra Pure, SLR, Pellets, Fisher Chemical™

CAS: 1310-58-3 Molecular Formula: HKO Molecular Weight (g/mol): 56.11 MDL Number: MFCD00003553 InChI Key: KWYUFKZDYYNOTN-UHFFFAOYSA-M Synonym: potassium hydroxide,caustic potash,potash lye,potassium hydrate,hydroxyde de potassium,potassa,potasse caustique,potassium hydroxide k oh,potassium hydroxide solution,caswell no. 693 PubChem CID: 14797 ChEBI: CHEBI:32035 SMILES: [OH-].[K+]

PubChem CID 14797
CAS 1310-58-3
Molecular Weight (g/mol) 56.11
ChEBI CHEBI:32035
MDL Number MFCD00003553
SMILES [OH-].[K+]
Synonym potassium hydroxide,caustic potash,potash lye,potassium hydrate,hydroxyde de potassium,potassa,potasse caustique,potassium hydroxide k oh,potassium hydroxide solution,caswell no. 693
InChI Key KWYUFKZDYYNOTN-UHFFFAOYSA-M
Molecular Formula HKO
14

Ammonium hydroxide, for analysis, 28-30 wt% solution of NH3 in water

CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N Synonym: ammonium hydroxide,ammonia water,ammonia aqueous,aquammonia,aqua ammonia,ammonia, aqua,household ammonia,ammonium hydroxide solution,ammonia, monohydrate,ammonium hydroxide nh4 oh PubChem CID: 14923 ChEBI: CHEBI:18219 SMILES: N.O

PubChem CID 14923
CAS 1336-21-6
Molecular Weight (g/mol) 35.05
ChEBI CHEBI:18219
MDL Number MFCD00066650
SMILES N.O
Synonym ammonium hydroxide,ammonia water,ammonia aqueous,aquammonia,aqua ammonia,ammonia, aqua,household ammonia,ammonium hydroxide solution,ammonia, monohydrate,ammonium hydroxide nh4 oh
InChI Key VHUUQVKOLVNVRT-UHFFFAOYSA-N
Molecular Formula H5NO