Electrochemistry Buffers
Buffer solutions suitable for use as reference and calibration standards for measuring pH values.
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pH
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Solution Type
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For Use With (Application)
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286
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287
289
Phosphate Buffer, 0.1 M, pH 2.5, Ricca Chemical
CAS: 7778-77-0 Molecular Formula: H2KO4P Molecular Weight (g/mol): 136.08 MDL Number: MFCD00011401 MFCD00147253 InChI Key: GNSKLFRGEWLPPA-UHFFFAOYSA-M PubChem CID: 516951 ChEBI: CHEBI:63036 IUPAC Name: potassium dihydrogen phosphate SMILES: [K+].OP(O)([O-])=O
| PubChem CID | 516951 |
|---|---|
| CAS | 7778-77-0 |
| Molecular Weight (g/mol) | 136.08 |
| ChEBI | CHEBI:63036 |
| MDL Number | MFCD00011401 MFCD00147253 |
| SMILES | [K+].OP(O)([O-])=O |
| IUPAC Name | potassium dihydrogen phosphate |
| InChI Key | GNSKLFRGEWLPPA-UHFFFAOYSA-M |
| Molecular Formula | H2KO4P |
290
292
Buffer, Precision Reference Standard, pH 10.000 ± 0.005 at 25°C, Ricca Chemical
Standardized against NIST-certified pH references. High-Accuracy pH Buffer solutions are for use with meters with 0.001 resolution.
294
| Name Note | pH 4.5 |
|---|---|
| CAS | 6131-90-4 |
| Color | Colorless |
| Packaging | Natural Poly Bottle |
| Physical Form | Liquid |
| pH | 4.5 |
| CAS Min % | 20.78 |
| Chemical Name or Material | Acetate Buffer |
| Grade | Laboratory |
| Concentration | 1X |
| For Use With (Application) | Water Analysis |
| Solution Type | Buffer |
| CAS Max % | 21.62 |
295
| CAS | 7732-18-5 |
|---|---|
| For Use With (Equipment) | pH Meter and Electrode |
| Color | Colorless |
| Physical Form | Liquid |
| pH | 1.07 |
| Concentration | 1X |
| For Use With (Application) | Calibration |
| Solution Type | pH Buffer |
296
Nonaqueous Buffer Stock Solution B, Ricca Chemical
For Acid Number and Neutralization Number of Petroleum Products
| Name Note | For Acid Number and Neutralization Number of Petroleum Products |
|---|---|
| CAS | 107-15-3 |
| Color | Amber |
| Packaging | Amber Glass Bottle |
| Physical Form | Liquid |
| CAS Min % | 0.02 |
| Chemical Name or Material | Nonaqueous Buffer Stock Solution B |
| Grade | Laboratory |
| Concentration | 1X |
| For Use With (Application) | Water Analysis |
| Solution Type | Buffer |
| CAS Max % | 0.02 |
297
Total Ionic Strength Adjustment Buffer (TISAB IV), with Tartrate, Ricca Chemical
For Analysis of Fluoride Analysis Using Ion Selective Electrodes
| Name Note | With Tartrate |
|---|---|
| CAS | 7647-01-0 |
| Color | Yellow to Green |
| Packaging | Natural Poly Bottle |
| Physical Form | Liquid |
| pH | 9 |
| CAS Min % | 6.18 |
| Chemical Name or Material | Buffer Solution, Total Ionic Strength Adjustment Buffer (TISAB IV) |
| Grade | Laboratory |
| Concentration | 1X |
| For Use With (Application) | Fluoride Analysis |
| Solution Type | Buffer |
| CAS Max % | 6.43 |
298
Acetate Buffer, for Iron (Phenanthroline Method), Ricca Chemical
For Analysis of Iron (pHenanthroline Method)
| CAS | 7732-18-5 |
|---|---|
| Color | Colorless |
| Physical Form | Liquid |
| CAS Min % | 12.95 |
| Chemical Name or Material | Acetate Buffer |
| Grade | Laboratory |
| Concentration | 1X |
| For Use With (Application) | Iron Analysis |
| Solution Type | Buffer |
| CAS Max % | 13.48 |
299
| Name Note | pH 0.95± 0.01 at 25°C |
|---|---|
| CAS | 7732-18-5 |
| For Use With (Equipment) | pH Meter and Electrode |
| Color | Colorless |
| Physical Form | Liquid |
| pH | 0.95 |
| CAS Min % | 1.2 |
| Chemical Name or Material | Buffer, Reference Standard |
| Concentration | 1X |
| For Use With (Application) | Calibration |
| Solution Type | pH Buffer |
| CAS Max % | 1.25 |
300
| Name Note | For Acid Number of Petroleum Products |
|---|---|
| CAS | 7647-01-0 |
| Color | Tan |
| Packaging | Amber Glass Bottle |
| Physical Form | Liquid |
| CAS Min % | 1.76 |
| Chemical Name or Material | Nonaqueous Buffer Stock Solution A |
| Grade | Laboratory |
| Concentration | 1X |
| For Use With (Application) | Water Analysis |
| Solution Type | Buffer |
| CAS Max % | 1.83 |