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Buffers and Standards

Buffers and Standards

Hydrogen ion buffers comprising a mixture of a weak acid and its conjugate base or vice-versa and used to stabilize pH; also diluents, washing solutions, and standard-value solutions used for a broad array of scientific calibration purposes.

The buffers used to calibrate pH meters may be certified and/or traceable to the National Institute of Standards and Technology (NIST). These buffers may also be color-coded for easy identification:

  • Red: pH 4.0
  • Yellow: pH 7.0
  • Blue: pH 10.0

 

General Chemistry Solutions (19)
Spectroscopy Standards (18)
Matrix Blanks and Standardization Solutions (13)
Electrochemistry Standards (5)
Electrochemistry Buffers (5)
Chromatography Standards (1)
Environmental Testing Standards (1)

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1 – 15 of 38 results
1

Ammonia, ca. 7N solution in methanol, AcroSeal™, Thermo Scientific Chemicals

Promotions are available
Linear Formula NH3
Molecular Weight (g/mol) 17.03
ChEBI CHEBI:16134
Color Colorless to Yellow
Physical Form Liquid
Chemical Name or Material Ammonia
SMILES N
Merck Index 15, 488
Concentration 6.0 to 7.5N
InChI Key QGZKDVFQNNGYKY-UHFFFAOYSA-N
Density 0.7700g/mL
PubChem CID 222
Name Note 7N solution in methanol
CAS 67-56-1
Health Hazard 3 GHS P Statement:
IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
Wear protective gloves/protective clothing/eye protection/face protection.
Call a POISON CENTER or doctor/physician if you feel unwell.
IF ON SKIN: Gently wash with plenty of soap and water.
IF SWALLOWED: rinse mouth. Do NOT induce vomiting.
Wear 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.
IF exposed: Call a POISON CENTER or doctor/physician.
IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
Avoid release to the environment.
Keep away from heat/sparks/open flames/hot surfaces. - No smoking.
Ground/Bond container and receiving equipment.

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 MFCD00011418
Health Hazard 2 GHS H Statement:
Toxic if swallowed.
Causes severe skin burns and eye damage.
Toxic in contact with skin.
Causes damage to organs.
Fatal if inhaled.
Highly flammable liquid and vapor.
Flash Point 14°C
Packaging AcroSeal™ Glass Bottle
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
Formula Weight 17.03
Specific Gravity 0.77
2

Ammonia, 7M in methanol, Thermo Scientific Chemicals

CAS: 7664-41-7 Molecular Formula: H3N Molecular Weight (g/mol): 17.03 MDL Number: MFCD00011418 InChI Key: QGZKDVFQNNGYKY-UHFFFAOYSA-N Synonym: ammonia,ammonia gas,spirit of hartshorn,nitro-sil,ammoniakgas,ammonia anhydrous,anhydrous ammonia,ammonia, anhydrous,ammoniak,am-fol PubChem CID: 222 ChEBI: CHEBI:16134 IUPAC Name: azane SMILES: N

Promotions are available
PubChem CID 222
CAS 7664-41-7
Molecular Weight (g/mol) 17.03
ChEBI CHEBI:16134
MDL Number MFCD00011418
SMILES N
Synonym ammonia,ammonia gas,spirit of hartshorn,nitro-sil,ammoniakgas,ammonia anhydrous,anhydrous ammonia,ammonia, anhydrous,ammoniak,am-fol
IUPAC Name azane
InChI Key QGZKDVFQNNGYKY-UHFFFAOYSA-N
Molecular Formula H3N
3

Ammonia, 0.5M solution in 1,4-dioxane, AcroSeal™, Thermo Scientific Chemicals

Promotions are available
Linear Formula NH3
Molecular Weight (g/mol) 17.03
ChEBI CHEBI:16134
Color Colorless
Physical Form Liquid
Chemical Name or Material Ammonia
SMILES N
Merck Index 15, 488
Concentration 0.4 to 0.6M
InChI Key QGZKDVFQNNGYKY-UHFFFAOYSA-N
Density 1.0230g/mL
PubChem CID 222
Name Note 0.5M solution in 1, 4-dioxane
Fieser 05,15
CAS 123-91-1
Health Hazard 3 GHS P Statement
Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Do not breathe dust/fume/gas/mist/vapors/spray. Wash face, hands and any exposed skin thoroughly after handling. Use personal protective equipment as required. 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.
MDL Number MFCD00011418
Health Hazard 2 GHS H Statement
Highly flammable liquid and vapor. Causes serious eye irritation. May cause respiratory irritation. Suspected of causing cancer. Repeated exposure may cause skin dryness or cracking.
Flash Point 11°C
Solubility Information Solubility in water: soluble.
Health Hazard 1 Danger
Synonym ammonia,ammonia gas,spirit of hartshorn,nitro-sil,ammoniakgas,ammonia anhydrous,anhydrous ammonia,ammonia, anhydrous,ammoniak,am-fol
Molecular Formula H3N
Formula Weight 17.03
Specific Gravity 1.023
4

Ammonia, 2M in methanol, Thermo Scientific Chemicals

CAS: 7664-41-7 Molecular Formula: H3N Molecular Weight (g/mol): 17.03 MDL Number: MFCD00011418 InChI Key: QGZKDVFQNNGYKY-UHFFFAOYSA-N Synonym: ammonia,ammonia gas,spirit of hartshorn,nitro-sil,ammoniakgas,ammonia anhydrous,anhydrous ammonia,ammonia, anhydrous,ammoniak,am-fol PubChem CID: 222 ChEBI: CHEBI:16134 IUPAC Name: azane SMILES: N

PubChem CID 222
CAS 7664-41-7
Molecular Weight (g/mol) 17.03
ChEBI CHEBI:16134
MDL Number MFCD00011418
SMILES N
Synonym ammonia,ammonia gas,spirit of hartshorn,nitro-sil,ammoniakgas,ammonia anhydrous,anhydrous ammonia,ammonia, anhydrous,ammoniak,am-fol
IUPAC Name azane
InChI Key QGZKDVFQNNGYKY-UHFFFAOYSA-N
Molecular Formula H3N
7

Ammonia Dilute R3 solution EU Pharmacopoeia, Fisher Chemical™

Pharmacopoeia reagents are intended for use in pharmacopoeia testing and monographs, produced under a GMP compliant ISO 9001 quality management system according to the relevant pharmacopoeia specification, using the pharmacopoeia reagent quality components and water meeting the relevant pharmacopoeia monograph requirement for Purified Water. Some pharmacopoeia standards are also accredited according to ISO 17025 and ISO Guide 43.

10

Ammonia buffer solution, Ammonium chloride / ammonia, pH 10, for complexometry, Honeywell Fluka™

Ammonium chloride / ammonia, pH 10, for complexometry

CAS 12125-02-9
Health Hazard 2 P260-P280-P303 + P361 + P353-P304 + P340 + P310-P305 + P351 + P338
Chemical Name or Material Ammonia buffer solution
11

ISE Buffer Ammonia, Reagecon™
BIOPHARMA

12

Ammonia Concentrated Volumetric Solution Ampule, Reagecon
BIOPHARMA

Fully factorized, high purity, stable product, developed and tested for titrations.

13

Ammonia Dilute R2 According to European Pharmacopoeia (EP), Reagecon
BIOPHARMA

High-purity, stable product for European Pharmacopeia applications.

15

Ammonia 10 M NaOH Ionic Strength Adjuster Solution, Reagecon
BIOPHARMA

Keeps ionic strength of standard and test high to eliminate matrix effects and suppress or eliminate interfering ions.