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 Chloride Conductivity Standard, 1413 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+]
Hydrogen Peroxide (30% in Water), Fisher BioReagents
CAS: 7722-84-1 Molecular Formula: H2O2 Molecular Weight (g/mol): 34.014 InChI Key: MHAJPDPJQMAIIY-UHFFFAOYSA-N Synonym: oxydol,perhydrol,superoxol,interox,hydrogen dioxide,inhibine,peroxaan,albone,hioxyl,kastone PubChem CID: 784 ChEBI: CHEBI:16240 IUPAC Name: hydrogen peroxide SMILES: OO
Sodium AA Standard, Certified, 1000ppm ±5ppm (1mL = 1mg Na), LabChem™
CAS: 7647-14-5 Molecular Formula: ClNa Molecular Weight (g/mol): 58.44 MDL Number: MFCD00003477 InChI Key: FAPWRFPIFSIZLT-UHFFFAOYSA-M PubChem CID: 5234 ChEBI: CHEBI:26710 IUPAC Name: sodium chloride SMILES: [Na+].[Cl-]
Ricca Chemical Company Sodium Hydroxide, 6.00 N, 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 Chlorine Water, Saturated, Approximately 0.3% (w/v), Ricca Chemical
CAS: 7782-50-5 Molecular Formula: Cl2 Molecular Weight (g/mol): 70.9 InChI Key: KZBUYRJDOAKODT-UHFFFAOYSA-N Synonym: chlorine,bertholite,chloor,cloro,chlorine gas,chlorine mol.,chlore french,cloro italian,chloor dutch,chlor german PubChem CID: 24526 ChEBI: CHEBI:29310 IUPAC Name: molecular chlorine SMILES: ClCl
Ricca Chemical Company Silver Nitrate, 0.100 N (N/10), 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
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 Zinc Sulfate, 0.0500 M (M/20), Ricca Chemical
CAS: 7446-20-0 Molecular Formula: H14O11SZn Molecular Weight (g/mol): 287.54 MDL Number: MFCD00149894 InChI Key: RZLVQBNCHSJZPX-UHFFFAOYSA-L Synonym: zinc sulfate heptahydrate,zinc sulfate jan,zinc sulfate 1:1 heptahydrate,unii-n57ji2k7wp,zinc vitriol heptahydrate,zinc sulfate heptahydrate 1:1:7,white vitriol heptahydrate,ccris 5563,zinc sulfate znso4 heptahydrate,znso4.7h2o PubChem CID: 62640 ChEBI: CHEBI:32312 IUPAC Name: zinc(2+) heptahydrate sulfate SMILES: O.O.O.O.O.O.O.[Zn++].[O-]S([O-])(=O)=O
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 Hydrogen Sulfide Water, Saturated, Ricca Chemical
CAS: 7732-18-5 Synonym: dihydrogen oxide,dihydrogen monoxide
Ricca Chemical Company EDTA Titrant, 0.0500 M (M/20), 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 Ferric Chloride, 0.025% (w/v), Ricca Chemical
CAS: 10025-77-1 Molecular Formula: Cl3FeH12O6 Molecular Weight (g/mol): 270.29 MDL Number: MFCD00149712 InChI Key: NQXWGWZJXJUMQB-UHFFFAOYSA-K Synonym: Ferric chloride hexahydrate,Iron Trichloride,Perchlorure de Fer PubChem CID: 24380 ChEBI: CHEBI:30808 IUPAC Name: iron(3+) hexahydrate trichloride SMILES: O.O.O.O.O.O.[Cl-].[Cl-].[Cl-].[Fe+3]