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Bases

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 (471)
Potassium Hydroxide (165)
Ammonium Hydroxide (125)

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1 – 15 of 399 results
1

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+]

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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, 98.5%, for analysis, pellets, Thermo Scientific Chemicals

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+]

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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
3

Sodium hydroxide, technical, 30% solution in water, Thermo Scientific Chemicals

Promotions are available
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4

Sodium Hydroxide Solution 0.2M (0.2N), NIST Standard Solution Ready To Use, for Volumetric Analysis, 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
5

Ammonium hydroxide, for analysis, 25% free ammonia, solution in water, Thermo Scientific Chemicals

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

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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
6

Ammonium hydroxide, for HPLC, 35% solution in water, Thermo Scientific Chemicals

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7

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

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

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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
8

Potassium hydroxide, ca. 85%, for analysis, pellets, Thermo Scientific Chemicals

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+]

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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
9

Ammonium hydroxide, ACS reagent, 28-30% solution in water, Thermo Scientific Chemicals

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

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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

Sodium hydroxide, extra pure, 50 wt% solution in water, Thermo Scientific Chemicals

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+]

EDGE
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
11

Sodium hydroxide, for analysis, micropearls, Thermo Scientific Chemicals

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+]

EDGE
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
12

Sodium Hydroxide, Certified AR for Analysis, Pearl, Fisher Chemical

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13

Potassium hydroxide, 1N solution in water, Thermo Scientific Chemicals

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Boiling Point 100.0°C
Linear Formula KOH
Molecular Weight (g/mol) 56.11
ChEBI CHEBI:32035
Color Colorless
UN Number 1814
Chemical Name or Material Potassium hydroxide
SMILES [OH-].[K+]
Concentration 1N, exact strength on the certificate of analysis
InChI Key KWYUFKZDYYNOTN-UHFFFAOYSA-M
Density 1.0500g/mL
PubChem CID 14797
Name Note 1N solution in water
Fieser 01,935; 02,346; 03,238; 04,409; 05,557; 06,486; 07,303; 08,415; 09,387; 11,439; 12,411; 13,258
CAS 7732-18-5
Health Hazard 3 GHS P Statement:
IF SWALLOWED: rinse mouth. Do NOT induce vomiting.
Wear protective gloves/protective clothing/eye protection/face protection.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Immediately call a POISON CENTER or doctor/physician.

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 MFCD00003553
Health Hazard 2 GHS H Statement:
Causes severe skin burns and eye damage.
Solubility Information Solubility in water: soluble.
Health Hazard 1 Danger
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
Molecular Formula HKO
Formula Weight 56.11
Specific Gravity 1.05
14

Sodium hydroxide, 98%, extra pure, pellets, Thermo Scientific Chemicals

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+]

EDGE
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
15

Ammonia, 2M solution in methanol, AcroSeal™, Thermo Scientific Chemicals

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Linear Formula NH3
Molecular Weight (g/mol) 17.03
ChEBI CHEBI:16134
InChI Key QGZKDVFQNNGYKY-UHFFFAOYSA-N
Density 0.7870g/mL
PubChem CID 222
Fieser 05,15
Formula Weight 17.03
Color Colorless
Physical Form Liquid
Chemical Name or Material Ammonia
SMILES N
Merck Index 15, 488
Concentration 1.90 to 2.20M
CAS 67-56-1
Health Hazard 3 GHS P Statement Immediately call a POISON CENTER or doctor/physician. Wear protective gloves/protective clothing/eye protection/face protection. Do not breathe dust/fume/gas/mist/vapors/spray. Keep away from heat/sparks/open flames/hot surfaces. - No smoking. 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.
MDL Number MFCD00011418
Health Hazard 2 GHS P Statement Toxic in contact with skin. Causes damage to organs. Toxic if swallowed. Causes serious eye damage. Toxic if inhaled. Causes skin irritation. Highly flammable liquid and vapor.
Packaging AcroSeal™ Glass Bottle
Flash Point 6°C
Solubility Information Solubility in water: soluble. Other solubilities: soluble in most organic solvents
Health Hazard 1 GHS Signal Word: Danger
Synonym ammonia,ammonia gas,spirit of hartshorn,nitro-sil,ammoniakgas,ammonia anhydrous,anhydrous ammonia,ammonia, anhydrous,ammoniak,am-fol
IUPAC Name azane
Molecular Formula H3N
Specific Gravity 0.787