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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 (36)

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1 – 15 of 17 results
2

Coulomat A, Honeywell™ Fluka™ HYDRANAL™

Promotions are available
Boiling Point 59°C
Health Hazard 2 P201-P210-P280-P308 + P311-P370 + P378-P403 + P235
Packaging Polycoated bottle
Flash Point 11°C (51.8°F)
UN Number UN3286
DOT Information 8(6.1)(3)/PGII
Chemical Name or Material HYDRANAL™-Coulomat A
Density 1.070g/cm3
3

HYDRANAL™ - Coulomat CG, Reagent for coulometric KF titration (catholyte solution), Honeywell Fluka™

CAS 7446-09-5
Health Hazard 2 P210-P280-P304 + P340 + P312-P305 + P351 + P338 + P310-P370 + P378-P403 + P235
UN Number UN1230
5

HYDRANAL™ - Coulomat AG-Oven, Reagent for coulometric KF titration with oven (anolyte solution), for cells with and without diaphragm, Honeywell Fluka

Boiling Point 64°C
CAS Min % ≥5.0000%
UN Number UN1230
Chemical Name or Material HYDRANAL™ - Coulomat AG-Oven
Grade Karl Fischer
Density 0.980 g/cm3
Name Note Reagent for coulometric KF titration with oven (anolyte solution), for cells with and without diaphragm
CAS 68007-08-9
Packaging Glass Bottle
Flash Point 13°C
DOT Information Transport Hazard Class: 3; Packing Group:3: II; Proper Shipping Name: Methanol Solution
Recommended Storage Room Temp
Shelf Life 1800 days from date of manufacture
CAS Max % <10.0000%
6

HYDRANAL™ - Coulomat AK, Reagent for coulometric KF titration in ketones (anolyte solution), preferred for cells with diaphragm, Honeywell Fluka

Boiling Point 60°C
CAS Min % ≥1.0000%
UN Number UN1992
Chemical Name or Material HYDRANAL™ - Coulomat AK
Grade Karl Fischer
Density 1.200 g/cm3
Name Note Reagent for coulometric KF titration in ketones (anolyte solution), preferred for cells with diaphragm
CAS 7446-09-5
Packaging Glass Bottle
Flash Point 32°C
DOT Information Transport Hazard Class: 3; Packing Group:3: III; Proper Shipping Name: Flammable liquids, toxic, n.o.s.
Recommended Storage Room Temp
Shelf Life 1800 days from date of manufacture
CAS Max % <5.0000%
7

Honeywell Fluka HYDRANAL™ - NEXTGEN Coulomat A-FA, Honeywell Fluka™

Anolyte for coulometric Karl Fischer titration of ketones and Li-ion battery electrolytes, preferred for cells with diaphragm, acetonitrile-based, free of alcohols (free of CMR substances)

CAS Confidential Stabilizer 1
Color Orange
Solubility Information Soluble in water
Physical Form Liquid
Packaging Glass Bottle
pH 5.5
Flash Point 12°C to 13°C
Chemical Name or Material HYDRANAL™ - NEXTGEN Coulomat A-FA
8

HYDRANAL™ - NEXTGEN Coulomat C-FA, Honeywell Fluka™

Catholyte for coulometric Karl Fischer titration of ketones and Li-ion battery electrolytes, Acetonitrile-based, free of alcohols (free of CMR substances).

CAS 75-05-8
Color Orange
Solubility Information Soluble in water
Physical Form Liquid
Packaging Ampoule
CAS Min % ≥2.00
pH 5.5
Flash Point 12°C to 13°C
UN Number UN2924
Chemical Name or Material HYDRANAL™ - NEXTGEN Coulomat C-FA
Recommended Storage Room Temperature
Shelf Life 720 days
Density 0.906 g/cm3
9

HYDRANAL™ - Coulomat E, Reagent for coulometric KF titration (ethanol-based), for cells with and without diaphragm, Honeywell Fluka™

Anolyte for coulometric Karl Fischer titration (ethanol-based), for cells with and without diaphragm

CAS 67-56-1
Health Hazard 2 P201-P210-P280-P308 + P313-P370 + P378-P403 + P235
10

HYDRANAL™ - NEXTGEN Coulomat AG-FI, Honeywell Fluka™

Anolyte for coulometric Karl Fischer titrations, for cells with and without diaphragm

Boiling Point 64°C to 65°C (Methanol)
CAS 67-56-1
Color Yellow
Solubility Information Completely Miscible in Water
Physical Form Liquid
Packaging Glass Bottle
CAS Min % ≥60%
Flash Point 14°C
UN Number UN1230
Chemical Name or Material HYDRANAL™ - NEXTGEN Coulomat AG-FI
Recommended Storage Room Temperature
Density 0.893 g/cm3 (at 20°C)
Melting Point -98°C (Methanol)
12

HYDRANAL™ - Coulomat Oil, Reagent for coulometric KF titration in oils (anolyte solution), preferred for cells with diaphragm, Honeywell Fluka™

Anolyte for coulometric Karl Fischer titration in oils (chloroform-methanol-xylene-based), preferred for cells with diaphragm

UN Number UN1992
13

HYDRANAL™ - Coulomat AF 7, For coulometer AF7, Honeywell Fluka™

for coulometer AF7

CAS 288-32-4
Health Hazard 2 P201-P210-P280-P308 + P311-P370 + P378-P403 + P235
UN Number UN1230
15

HYDRANAL™ - Coulomat AG-Oven, Honeywell Fluka™

Anolyte for coulometric Karl Fischer titration with oven (methanol-based), for cells with and without diaphragm