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
Ricca Chemical Company Ceric Sulfate, 0.100 N (N/10) in 2 N Sulfuric Acid, Ricca Chemical
CAS: 13590-82-4 Molecular Formula: CeO8S2 Molecular Weight (g/mol): 332.23 MDL Number: MFCD00148852 InChI Key: VZDYWEUILIUIDF-UHFFFAOYSA-J Synonym: ceric sulfate,cerium iv sulfate,ceric disulfate,ceric sulphate,cerium disulfate,cerium 4+ sulfate,cerium 4+ disulphate,unii-4f66fi5t7x,sulfuric acid, cerium 4+ salt 2:1,cerium 4+ disulfate PubChem CID: 159684 IUPAC Name: λ4-cerium(4+) disulfate SMILES: [Ce+4].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O
Ricca Chemical Company Potassium Iodide, 10% (w/v), Stabilized, Ricca Chemical
CAS: 7681-11-0 Molecular Formula: IK Molecular Weight (g/mol): 166.003 InChI Key: NLKNQRATVPKPDG-UHFFFAOYSA-M Synonym: potassium iodide,potassium iodide ki,pima,kali iodide,thyro-block,knollide,kisol,asmofug e,potassium diiodide,potassium monoiodide PubChem CID: 4875 ChEBI: CHEBI:8346 IUPAC Name: potassium;iodide SMILES: [K+].[I-]
Ricca Chemical Company Potassium Chloride, 3 M, saturated with Silver Chloride, Electrode Filling Solution, Ricca Chemical
CAS: 7447-40-7 Molecular Formula: ClK Molecular Weight (g/mol): 74.55 MDL Number: MFCD00011360 InChI Key: WCUXLLCKKVVCTQ-UHFFFAOYSA-M Synonym: potassium chloride,enseal,muriate of potash,klotrix,sylvite,slow-k,potassium chloride kcl,klor-con,chlorvescent,kalitabs PubChem CID: 4873 ChEBI: CHEBI:32588 IUPAC Name: potassium chloride SMILES: [Cl-].[K+]
Ricca Chemical Company Ammonia Standard, 1000 ppm NH3 (822 ppm N), Ricca Chemical
CAS: 12125-02-9 Molecular Formula: ClH4N Molecular Weight (g/mol): 53.49 MDL Number: MFCD00011420 InChI Key: NLXLAEXVIDQMFP-UHFFFAOYSA-N PubChem CID: 25517 ChEBI: CHEBI:31206 IUPAC Name: amine hydrochloride SMILES: N.Cl
Ricca Chemical Company Sodium Hydroxide, 30% (w/v), Ricca Chemical
CAS: 1310-73-2 Molecular Formula: HNaO Molecular Weight (g/mol): 39.997 InChI Key: HEMHJVSKTPXQMS-UHFFFAOYSA-M Synonym: sodium hydroxide,caustic soda,sodium hydrate,white caustic,soda lye,aetznatron,ascarite,sodium hydroxide na oh,sodium hydroxide solution,soda, caustic PubChem CID: 14798 ChEBI: CHEBI:32145 IUPAC Name: sodium;hydroxide SMILES: [OH-].[Na+]
Ricca Chemical Company Potassium Chloride Conductivity Standard, 10 μS/cm at 25°C, Ricca Chemical
CAS: 7447-40-7 Molecular Formula: ClK Molecular Weight (g/mol): 74.55 MDL Number: MFCD00011360 InChI Key: WCUXLLCKKVVCTQ-UHFFFAOYSA-M PubChem CID: 4873 ChEBI: CHEBI:32588 IUPAC Name: potassium chloride SMILES: [Cl-].[K+]
Ricca Chemical Company Cupric Sulfate CS, USP/EP Blue Primary Solution, Ricca Chemical
CAS: 7758-99-8 Molecular Formula: CuH10O9S Molecular Weight (g/mol): 249.68 MDL Number: MFCD00149681 InChI Key: JZCCFEFSEZPSOG-UHFFFAOYSA-L Synonym: copper ii sulfate pentahydrate,copper sulfate pentahydrate,cupric sulfate pentahydrate,blue vitriol,calcanthite,bluestone,copper 2+ sulfate pentahydrate,triangle,vencedor,blue copperas PubChem CID: 24463 ChEBI: CHEBI:31440 IUPAC Name: copper(2+) pentahydrate sulfate SMILES: O.O.O.O.O.[Cu++].[O-]S([O-])(=O)=O
Ricca Chemical Company Sodium Chloride, 0.9% (w/v), Isotonic Saline, Ricca Chemical
CAS: 7647-14-5 Molecular Formula: ClNa Molecular Weight (g/mol): 58.44 MDL Number: MFCD00003477 InChI Key: FAPWRFPIFSIZLT-UHFFFAOYSA-M Synonym: sodium chloride,salt,table salt,halite,saline,rock salt,common salt,sodium chloride nacl,dendritis,purex PubChem CID: 5234 ChEBI: CHEBI:26710 IUPAC Name: sodium chloride SMILES: [Na+].[Cl-]
Ricca Chemical Company Thioacetamide TS, 4% (w/v), Ricca Chemical
CAS: 62-55-5 Molecular Formula: C2H5NS Molecular Weight (g/mol): 75.13 MDL Number: MFCD00008070 InChI Key: YUKQRDCYNOVPGJ-UHFFFAOYSA-N Synonym: thioacetamide,acetothioamide,thiacetamide,acetamide, thio,thioacetimidic acid,acetimidic acid, thio,usaf cb-21,usaf ek-1719,rcra waste number u218,acetic acid, thiono-, amide PubChem CID: 2723949 ChEBI: CHEBI:32497 IUPAC Name: ethanethioamide SMILES: CC(N)=S
Ricca Chemical Company ORP Standard, +200 mV, Ricca Chemical
CAS: 14459-95-1 Molecular Formula: C6H6FeK4N6O3 Molecular Weight (g/mol): 422.39 MDL Number: MFCD00167023 InChI Key: NLYKFUFIUWPPIZ-UHFFFAOYSA-N IUPAC Name: tetrapotassium hexacyanoironbis(ylium) trihydrate SMILES: O.O.O.[K+].[K+].[K+].[K+].N#C[Fe++](C#N)(C#N)(C#N)(C#N)C#N
Ricca Chemical Company Sodium Thiosulfate, 0.0100 N (N/100), Ricca Chemical
CAS: 10102-17-7 Molecular Formula: H10Na2O8S2 Molecular Weight (g/mol): 248.17 InChI Key: PODWXQQNRWNDGD-UHFFFAOYSA-L Synonym: sodium thiosulfate pentahydrate,ametox,sodium thiosulfate, pentahydrate,antichlor,tinver,disodium thiosulfate pentahydrate,unii-hx1032v43m,ccris 3952,thiosulfuric acid, disodium salt, pentahydrate,sodium hyposulfite pentahydrate PubChem CID: 61475 ChEBI: CHEBI:32150 IUPAC Name: disodium pentahydrate sulfanidesulfonate SMILES: O.O.O.O.O.[Na+].[Na+].[O-]S([S-])(=O)=O
Ricca Chemical Company Phosphorus Standard, 1000 ppm P, 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
