Hardness (APHA 2340C, EPA 130)

Sodium Hydroxide, Certified, 0.1000N ±0.0005N (0.1M), LabChem™

CAS: 1310-73-2 Molecular Formula: HNaO Molecular Weight (g/mol): 39.997 InChI Key: HEMHJVSKTPXQMS-UHFFFAOYSA-M Synonym: aetznatron, ascarite, caustic soda, soda lye, soda, caustic, sodium hydrate, sodium hydroxide, sodium hydroxide na oh, sodium hydroxide solution, white caustic PubChem CID: 14798 ChEBI: CHEBI:32145 IUPAC Name: sodium;hydroxide SMILES: [OH-].[Na+]

EDTA Titrant, 0.0100 Molar, Ricca Chemical

CAS: 6381-92-6 Molecular Formula: C10H18N2Na2O10 Molecular Weight (g/mol): 372.238 InChI Key: OVBJJZOQPCKUOR-UHFFFAOYSA-L Synonym: buffer solution, ph 10.00, cal-ex decalcifier, edta disodium salt, ethylenediamine tetraacetic acid, disodium salt dihydrate, ethylenediamine tetraacetic acid, disodium salt, standard solution, ethylenedinitrilo tetraacetic acid disodium, dihydrate, reagent, acs, sodium di ethylenediamine tetraacetate dihydrate, sodium di ethylenediamine tetraacetate standard solution PubChem CID: 44120005 IUPAC Name: disodium;2-[2-[bis(carboxymethyl)amino]ethyl-(carboxylatomethyl)amino]acetate;dihydrate SMILES: C(CN(CC(=O)[O-])CC(=O)[O-])N(CC(=O)O)CC(=O)O.O.O.[Na+].[Na+]

Calcium Carbonate Standard , (1mL = 1mg CaCO3 = 0.4mg Ca), for Hardness, Certified, 1.000 ±0.010mg CaCO3/mL, LabChem™

CAS: 471-34-1 Molecular Formula: CCaO3 Molecular Weight (g/mol): 100.086 InChI Key: VTYYLEPIZMXCLO-UHFFFAOYSA-L PubChem CID: 10112 ChEBI: CHEBI:3311 IUPAC Name: calcium;carbonate SMILES: C(=O)([O-])[O-].[Ca+2]

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Ammonium Hydroxide, 1.00 Normal, Ricca Chemical

CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.046 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N Synonym: ammonia aqueous, ammonia water, ammonia, aqua, ammonia, monohydrate, ammonium hydroxide, ammonium hydroxide nh4 oh, ammonium hydroxide solution, aqua ammonia, aquammonia, household ammonia PubChem CID: 14923 ChEBI: CHEBI:18219 IUPAC Name: azanium;hydroxide SMILES: [NH4+].[OH-]

Calcium Chloride Standard, 400ppm Ca, Ricca Chemical

CAS: 471-34-1 Molecular Formula: CCaO3 Molecular Weight (g/mol): 100.086 InChI Key: VTYYLEPIZMXCLO-UHFFFAOYSA-L PubChem CID: 10112 ChEBI: CHEBI:3311 IUPAC Name: calcium;carbonate SMILES: C(=O)([O-])[O-].[Ca+2]

Calmagite Indicator, 0.1% Aqueous, for Hardness, Certified, LabChem™

CAS: 3147-14-6 Molecular Formula: C17H14N2O5S Molecular Weight (g/mol): 358.368 InChI Key: ASFVMSDYPYMUFL-UHFFFAOYSA-N PubChem CID: 6364506 IUPAC Name: 4-[(2-hydroxy-5-methylphenyl)hydrazinylidene]-3-oxonaphthalene-1-sulfonic acid SMILES: CC1=CC(=C(C=C1)O)NN=C2C3=CC=CC=C3C(=CC2=O)S(=O)(=O)O

Eriochrome™ Black T, Dry Form in NaCl, for Hardness, Certified, LabChem™

CAS: 7647-14-5 Molecular Formula: ClNa Molecular Weight (g/mol): 58.44 InChI Key: FAPWRFPIFSIZLT-UHFFFAOYSA-M PubChem CID: 5234 ChEBI: CHEBI:26710 IUPAC Name: sodium;chloride SMILES: [Na+].[Cl-]

Lovibond™ CHECKIT™ Comparator Test Kits: Total Hardness HR

Accurate test kit for routine water analysis

Monomagnesium EDTA, 0.2g/L, for Hardness, Ricca Chemical

CAS: 14402-88-1 Molecular Formula: C10H12MgN2Na2O8 Molecular Weight (g/mol): 358.497 InChI Key: AWNVVAMWLMUZOZ-UHFFFAOYSA-J Synonym: edta magnesium disodium, edta magnesium disodium salt hydrate, ethylenediaminetetraacetic acid disodium magnesium salt, ethylenediaminetetraacetic acid disodium magnesium salt hydrate, ethylenediaminetetraacetic acid magnesium disodium salt, magnesium disodium edta, magnesium disodium ethylenediaminetetraacetate, magnesium sodium ethylenediaminetetraacetate, ndt563s5vz, unii-ndt563s5vz PubChem CID: 161064 IUPAC Name: magnesium;disodium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate SMILES: C(CN(CC(=O)[O-])CC(=O)[O-])N(CC(=O)[O-])CC(=O)[O-].[Na+].[Na+].[Mg+2]

Lovibond™ CHECKIT™ Comparator Test Kits: Total Hardness

Accurate test kits for routine water analysis

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