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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.

Ammonium Hydroxide (28)
Sodium Hydroxide (19)
Potassium Hydroxide (1)

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Keyword Search:
1 – 15 of 19 results
1

Ammonium hydroxide solution, Puriss. p.a., Reag. ISO, Reag. Ph. Eur., ∼25% NH3 basis, Honeywell Fluka™

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 IUPAC Name: azanium;hydroxide 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
IUPAC Name azanium;hydroxide
InChI Key VHUUQVKOLVNVRT-UHFFFAOYSA-N
Molecular Formula H5NO
2

Ammonium hydroxide solution, Puriss., meets analytical specification of Ph. Eur., 25-30% NH3 basis, Honeywell Fluka™

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
3

Ammonium hydroxide solution, Puriss., 30-33% NH3 in H2O, Honeywell Fluka™

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
4

Sodium Hydroxide, in Methanol, for Organic Acids, Certified, 0.0200N ±0.0002N (0.02M) , LabChem™

CAS: 1310-73-2 Molecular Formula: HNaO Molecular Weight (g/mol): 39.997 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
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
5

Potassium Hydroxide/Methanol/Hexane for Fatty Acid by Gas Chromatography, Reagents

CAS: 67-56-1 Molecular Formula: CH4O Molecular Weight (g/mol): 32.04 InChI Key: OKKJLVBELUTLKV-UHFFFAOYSA-N IUPAC Name: methanol SMILES: CO

CAS 67-56-1
Molecular Weight (g/mol) 32.04
SMILES CO
IUPAC Name methanol
InChI Key OKKJLVBELUTLKV-UHFFFAOYSA-N
Molecular Formula CH4O
6

Ammonium Hydroxide Solution, ≥99.99%, Honeywell™

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 IUPAC Name: azanium;hydroxide 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
IUPAC Name azanium;hydroxide
InChI Key VHUUQVKOLVNVRT-UHFFFAOYSA-N
Molecular Formula H5NO
7

Sodium hydroxide solution, ≥32%, for determination of nitrogen, ≤0.0001% N, Honeywell™

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
8

Ammonium Hydroxide Solution, ACS Reagent, 28.0 to 30.0% NH3 basis, Honeywell Fluka™

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
9

Ammonium Hydroxide Solution, puriss. p.a. plus, Honeywell Fluka™

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
10

Ammonium hydroxide solution, Honeywell™

CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N PubChem CID: 14923 ChEBI: CHEBI:18219 IUPAC Name: amine hydrate 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
IUPAC Name amine hydrate
InChI Key VHUUQVKOLVNVRT-UHFFFAOYSA-N
Molecular Formula H5NO
11

Ammonium Hydroxide Solution, puriss. p.a., 0%, Honeywell™ Fluka™

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 IUPAC Name: azanium;hydroxide 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
IUPAC Name azanium;hydroxide
InChI Key VHUUQVKOLVNVRT-UHFFFAOYSA-N
Molecular Formula H5NO
12

Sodium Hydroxide, 0.100 N (N/10), Ricca Chemical

CAS: 1310-73-2 Molecular Formula: HNaO Molecular Weight (g/mol): 40 g/mol 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) 40 g/mol
ChEBI CHEBI:32145
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
13

Sodium Hydroxide, 1.00 N, Ricca Chemical

CAS: 1310-73-2 Molecular Formula: HNaO Molecular Weight (g/mol): 40 g/mol 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) 40 g/mol
ChEBI CHEBI:32145
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
14

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

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
15

Ammonium Hydroxide (Optima™), Fisher Chemical™

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 IUPAC Name: amine hydrate 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
IUPAC Name amine hydrate
InChI Key VHUUQVKOLVNVRT-UHFFFAOYSA-N
Molecular Formula H5NO