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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

 

Karl Fischer Buffers and Reagents (108)
General Chemistry Solutions (21)

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1 – 15 of 46 results
1

HYDRANAL™ - Composite 5, Reagent for volumetric one-component Karl Fischer titration (methanol free), Honeywell™ Fluka™

Promotions are available
EDGE
CAS 693-98-1
2

HYDRANAL™ - Composite 2, Reagent for volumetric one-component Karl Fischer titration (methanol free), Honeywell™ Fluka™

Promotions are available
EDGE
CAS 68007-08-9
4

HYDRANAL™ - Composite 1, Reagent for volumetric one-component Karl Fischer titration (methanol free), Honeywell™ Fluka™

Promotions are available
EDGE
5

HYDRANAL™ - Composite 5, Honeywell Fluka™

Titrating agent for volumetric, one-component Karl Fischer titrations (Methanol-free)

Promotions are available
Boiling Point 194°C (at 1.013 hPa)
CAS 111-90-0
Color Brown
Solubility Information Completely Miscible in Water
Physical Form Liquid
Packaging Metrohm OMNIS Smart Reagent
pH 4.5 to 5.5 (at 20°C)
Flash Point 99°C
Chemical Name or Material HYDRANAL™ - Composite 5
Grade Volumetric One-Component KF Titration
Synonym DE Solvent; 2-(2-Ethoxyethoxy)ethanol; CARBITOL; Diethylene glycol ethyl ether; Ethyldiglycol
Recommended Storage Ambient
6

HYDRANAL™-Sodium tartrate dihydrate, Honeywell Fluka™

Test substance for volumetric Karl Fischer titration (water content ∼15.66%, exact value on report of analysis)

Promotions are available
UN Number NONH for all modes of transport
Chemical Name or Material HYDRANAL™-Sodium tartrate dihydrate
9

HYDRANAL™ - Methanol Rapid, Reagent for accelerated volumetric one-component KF titration (working medium), Honeywell Fluka™

Medium for accelerated volumetric one-component Karl Fischer titration.

Promotions are available
UN Number UN1230
13

HYDRANAL™ - Solvent Oil, Reagent for volumetric two-component KF titration in oils (working medium), Honeywell Fluka™

Medium for volumetric two-component Karl Fischer titration in non-polar substances, fats and oils (methanol-hexanol-based)

Promotions are available
CAS 288-32-4
MDL Number MFCD00147197
Health Hazard 2 P201-P210-P280-P308 + P311-P370 + P378-P403 + P235