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
Thermo Scientific™ Flaconi di tampone pH Orion™
Esecuzione di calibrazioni del pH accurate e riproducibili con flaconi di tampone pH Thermo Scientific™ Orion™ codificati a colori.
pH Buffers, Twin Neck, Fisherbrand™
Perform accurate pH calibrations with color-coded, twin neck Fisherbrand™ pH Buffer Bottles.
Buffer Solution pH4.00 (Phthalate), NIST Standard Solution ready to use for pH measurement, Fisher Chemical™
Numero MDL: 217672
Buffer Solution pH7.00 (Phosphate), NIST Standard Solution ready to use for pH measurement, Fisher Chemical™
Numero MDL: 217672
Tampone tecnico
Un tampone pH affidabile e versatile. Le soluzioni tampone pH Mettler Toledo™ di grado tecnico sono specificate a due cifre decimali e sono tracciabili agli standard NIST. La soluzione codificata a colori viene fornita in un pratico flacone in plastica da 250 ml completa di etichette esaustive.
Buffer Colour Coded Solution pH7.00 (Phosphate) Yellow, NIST Standard Solution ready to use for pH measurement, Fisher Chemical™
CAS: 7778-77-0 Formula molecolare: H2KO4P Molecular Weight (g/mol): 136.08 InChI Key: GNSKLFRGEWLPPA-UHFFFAOYSA-M IUPAC Name: potassium dihydrogen phosphate SMILES: [K+].OP(O)([O-])=O
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Thermo Scientific™ Orion™ All-in-One™ pH Buffer Kits
Work with ease using this color-coded pH buffer kit that includes three buffers, storage solution and a storage bottle.
Buffer Colour Coded Solution pH10.00 (Borate) Blue, NIST Standard Solution ready to use for pH measurement, Fisher Chemical™
CAS: 10043-35-3 Formula molecolare: BH3O3 Molecular Weight (g/mol): 61.83 InChI Key: KGBXLFKZBHKPEV-UHFFFAOYSA-N IUPAC Name: boric acid SMILES: OB(O)O
Oxalic acid, 10% w/v aq. soln.
CAS: 144-62-7 Formula molecolare: C2H2O4 Molecular Weight (g/mol): 90.034 Numero MDL: MFCD00002573 InChI Key: MUBZPKHOEPUJKR-UHFFFAOYSA-N PubChem CID: 971 ChEBI: CHEBI:16995 IUPAC Name: oxalic acid SMILES: C(=O)(C(=O)O)O
Soluzioni di conducibilità
Recommended NIST traceable solutions for calibrating or verifying METTLER TOLEDO conductivity electrodes.
