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 Potassium Permanganate, 0.100 N (N/10), 0.0200 M (M/50), Ricca Chemical
CAS: 7722-64-7 Molecular Formula: KMnO4 Molecular Weight (g/mol): 158.032 InChI Key: VZJVWSHVAAUDKD-UHFFFAOYSA-N Synonym: potassium permanganate,chameleon mineral,condy's crystals,argucide,cairox,permanganate of potash,insta-perm,walko tablets,algae-k,solo san soo PubChem CID: 516875 IUPAC Name: potassium;permanganate SMILES: [O-][Mn](=O)(=O)=O.[K+]
DPD Indicator Solution, for Residual Chlorine Analysis, Ricca Chemical
For Analysis of Residual Chlorine Analysis
Ricca Chemical Company Potassium Iodide TS, 16.5% (w/v), Stabilized, Ricca Chemical
CAS: 7681-11-0 Molecular Formula: IK Molecular Weight (g/mol): 166.00 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, Saturated, Approximately 4 M, 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 EDTA Titrant, 0.100 M (M/10), Ricca Chemical
CAS: 6381-92-6 Molecular Formula: C10H18N2Na2O10 Molecular Weight (g/mol): 372.24 MDL Number: MFCD00150037,MFCD00003541 InChI Key: OVBJJZOQPCKUOR-UHFFFAOYSA-L Synonym: edta disodium salt,cal-ex decalcifier,buffer solution, ph 10.00,sodium di ethylenediamine tetraacetate dihydrate,ethylenediamine tetraacetic acid, disodium salt dihydrate,ethylenediamine tetraacetic acid, disodium salt, standard solution,sodium di ethylenediamine tetraacetate standard solution,ethylenedinitrilo tetraacetic acid disodium, dihydrate, reagent, acs PubChem CID: 44120005 IUPAC Name: disodium 2-({2-[(carboxylatomethyl)(carboxymethyl)amino]ethyl}(carboxymethyl)amino)acetate dihydrate SMILES: O.O.[Na+].[Na+].OC(=O)CN(CCN(CC(O)=O)CC([O-])=O)CC([O-])=O
Ricca Chemical Company Potassium Hydroxide, 0.500 N (N/2) in Denatured Alcohol, Ricca Chemical
CAS: 1310-58-3 Molecular Formula: HKO Molecular Weight (g/mol): 56.11 MDL Number: MFCD00003553 InChI Key: KWYUFKZDYYNOTN-UHFFFAOYSA-M Synonym: potassium hydroxide,caustic potash,potash lye,potassium hydrate,hydroxyde de potassium,potassa,potasse caustique,potassium hydroxide k oh,potassium hydroxide solution,caswell no. 693 PubChem CID: 14797 ChEBI: CHEBI:32035 IUPAC Name: potassium hydroxide SMILES: [OH-].[K+]
Ricca Chemical Company Nitrite Nitrogen Standard, 100 ppm N (328.5 ppm NO2-), Ricca Chemical
CAS: 7758-09-0 Molecular Formula: KNO2 Molecular Weight (g/mol): 85.10 MDL Number: MFCD00011408 InChI Key: BXNHTSHTPBPRFX-UHFFFAOYSA-M PubChem CID: 516910 IUPAC Name: potassium nitrite SMILES: [K+].[O-]N=O
Ricca Chemical Company Sulfosalicylic Acid, 3% (w/v), Ricca Chemical
CAS: 97-05-2 Molecular Formula: C7H6O6S Molecular Weight (g/mol): 218.179 InChI Key: YCPXWRQRBFJBPZ-UHFFFAOYSA-N Synonym: 5-sulfosalicylic acid,sulfosalicylic acid,5-sulphosalicylic acid,salicylsulfonic acid,benzoic acid, 2-hydroxy-5-sulfo,salicylic acid, sulfo,benzoic acid, 2-hydroxysulfo,sulphosalicylic acid,salicylic acid, 5-sulfo,2-hydroxybenzoic-5-sulfonic acid PubChem CID: 7322 ChEBI: CHEBI:68555 IUPAC Name: 2-hydroxy-5-sulfobenzoic acid SMILES: C1=CC(=C(C=C1S(=O)(=O)O)C(=O)O)O
Ricca Chemical Company Sulfate Standard, 1000 ppm SO42-, Ricca Chemical
CAS: 7757-82-6 Molecular Formula: Na2O4S Molecular Weight (g/mol): 142.04 MDL Number: MFCD00003504 InChI Key: PMZURENOXWZQFD-UHFFFAOYSA-L PubChem CID: 24436 ChEBI: CHEBI:32149 IUPAC Name: disodium sulfate SMILES: [Na+].[Na+].[O-]S([O-])(=O)=O
Ricca Chemical Company Phosphate Phosphorus Standard, 100 ppm P (306.6 ppm PO43-), 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