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 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 Calcium Hydroxide TS (Saturated Aqueous Solution), Ricca Chemical
CAS: 1305-62-0 Molecular Formula: CaH2O2 Molecular Weight (g/mol): 74.09 MDL Number: MFCD00010901 InChI Key: AXCZMVOFGPJBDE-UHFFFAOYSA-L Synonym: calcium hydroxide,slaked lime,hydrated lime,calcium dihydroxide,calcium ii hydroxide,calcium oxide, hydrated,kalziumhydroxid,loeschkalk,pickling lime,calciumdihydroxid PubChem CID: 6093208 ChEBI: CHEBI:31341 IUPAC Name: calcium dihydroxide SMILES: [OH-].[OH-].[Ca++]
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 Hydrogen Sulfide Water, Saturated, Ricca Chemical
CAS: 7732-18-5 Synonym: dihydrogen oxide,dihydrogen monoxide
Ricca Chemical Company ORP Standard, +600 mV, Ricca Chemical
CAS: 7783-85-9 Molecular Formula: FeH20N2O14S2 Molecular Weight (g/mol): 392.13 MDL Number: MFCD00150530 InChI Key: MQLVWQSVRZVNIP-UHFFFAOYSA-L IUPAC Name: λ2-iron(2+) diammonium hexahydrate disulfate SMILES: [NH4+].[NH4+].O.O.O.O.O.O.[Fe++].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O
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 Barium Chloride TS/RS, 12% (w/v), Ricca Chemical
CAS: 10326-27-9 Molecular Formula: BaCl2H4O2 Molecular Weight (g/mol): 244.26 MDL Number: MFCD00149154 InChI Key: PWHCIQQGOQTFAE-UHFFFAOYSA-L Synonym: barium chloride dihydrate,bacl2.2h2o,barium 2+ dihydrate dichloride,barium 2+ dichloride dihydrate,acmc-20alrc,dsstox_cid_131,barium chloride, acs,dsstox_rid_75389,dsstox_gsid_20131,ksc174q7d PubChem CID: 5284346 ChEBI: CHEBI:86153 IUPAC Name: barium(2+) dihydrate dichloride SMILES: O.O.[Cl-].[Cl-].[Ba++]
Ricca Chemical Company Silver Nitrate, 0.0100 N (N/100) in Isopropyl Alcohol, Ricca Chemical
CAS: 7761-88-8 Molecular Formula: AgNO3 Molecular Weight (g/mol): 169.87 MDL Number: MFCD00003414 InChI Key: SQGYOTSLMSWVJD-UHFFFAOYSA-N Synonym: silver nitrate,silvernitrate,lunar caustic,silbernitrat,argenti nitras,nitrate d'argent,nitric acid silver i salt,silver mononitrate,silver i nitrate,argerol PubChem CID: 24470 ChEBI: CHEBI:32130 IUPAC Name: silver(1+) nitrate SMILES: [Ag+].[O-][N+]([O-])=O
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 Ferric Chloride CS, USP/EP Yellow Primary Solution, Ricca Chemical
CAS: 10025-77-1 Molecular Formula: Cl3FeH12O6 Molecular Weight (g/mol): 270.29 MDL Number: MFCD00149712 InChI Key: NQXWGWZJXJUMQB-UHFFFAOYSA-K IUPAC Name: iron(3+) hexahydrate trichloride SMILES: O.O.O.O.O.O.[Cl-].[Cl-].[Cl-].[Fe+3]
Ricca Chemical Company Lead Acetate TS, 9.5% (w/v), Ricca Chemical
CAS: 6080-56-4 Molecular Formula: C4H12O7Pb Molecular Weight (g/mol): 379.30 MDL Number: MFCD00150023 InChI Key: MCEUZMYFCCOOQO-UHFFFAOYSA-L Synonym: lead acetate trihydrate,lead diacetate trihydrate,bleiazetat german,bis acetato trihydroxytrilead,unii-rx077p88ry,ccris 9031,lead acetate ii , trihydrate,lead acetate jan,acetic acid, lead +2 salt trihydrate,acetic acid, lead 2+ salt, trihydrate PubChem CID: 22456 ChEBI: CHEBI:33112 IUPAC Name: λ2-lead(2+) diacetate trihydrate SMILES: O.O.O.[Pb++].CC([O-])=O.CC([O-])=O
Ricca Chemical Company Sodium Thiosulfate, 0.0500 N (N/20), 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 Ammonium Thiocyanate, 0.100 N (N/10), Ricca Chemical
CAS: 1762-95-4 Molecular Formula: CH4N2S Molecular Weight (g/mol): 76.117 InChI Key: SOIFLUNRINLCBN-UHFFFAOYSA-N Synonym: ammonium thiocyanate,ammoniumrhodanid,thiocyanic acid, ammonium salt,ammonium isothiocyanate,ammonium rhodanate,weedazol tl,trans-aid,ammonium sulfocyanate,ammonium sulfocyanide,rhodanine, ammonium salt PubChem CID: 15666 IUPAC Name: azanium;thiocyanate SMILES: C(#N)[S-].[NH4+]