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
Phosphate Buffered Saline, 1X - Non-sterile, Ricca Chemical
Phosphate Buffered Saline, 1X is non-sterile.
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
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
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-]
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]
Ammonia R (175 g/L NH3), Ricca Chemical
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N Synonym: ammonium hydroxide,ammonia water,ammonia aqueous,aquammonia,aqua ammonia,ammonia, aqua,household ammonia,ammonium hydroxide solution,ammonia, monohydrate,ammonium hydroxide nh4 oh PubChem CID: 14923 ChEBI: CHEBI:18219 IUPAC Name: amine hydrate SMILES: N.O
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
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
EDTA Titrant, 0.0100 M (M/100), 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
Silver Nitrate, 0.0141 N (0.0141 M), 1 mL = 0.5 mg Cl-, 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
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++]
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]
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