Indicators
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Ferric Ammonium Sulfate, Solution
GFS ChemicalsFeNH4(SO4)2•12H2O CAS#: 7783-83-7 F.W.: 482.20 Saturated Solution
Related Products: Ferric Sulfate
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4-(P-Nitrophenylazo)-Resorcinol
GFS ChemicalsNO2C6H4N=NC6H3(OH)2 CAS#: 74-39-5 F.W.: 259.23 Descriptions: Azo Violet
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Ninhydrin Reagent (ACS)
GFS Chemicals2,2-Dihydroxy-1,3-indanedione;1,2,3-Indanetrione monohydrate. Indicator for amines.
Related Products: Ninhydrin Reagent
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Diphenylamine Indicator Solution, 0.3% Aqueous
GFS Chemicals(C6H5)2NH CAS#: 122-39-4 F.W.: 169.22
Related Products: Diphenylamine Indicator
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Variamine Blue B (ACS)
GFS ChemicalsCH3OC6H4NHC6H4NH2•HCl CAS#: 3566-44-7 F.W.: 250.73 N-[p-Methoxyphenyl]-p-phenylenediamine hydrochloride
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Eosin Y (ACS)
GFS ChemicalsC20H6Br4Na2O5 CAS#: 17372-87-1 F.W.: 691.86 2',4',5',7'-Tetrabromofluorescein, Disodium Salt
Related Products: Eosin Y
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Resazurin, Sodium Salt
GFS ChemicalsC12H6NO4Na CAS#: 62758-13-8 F.W.: 251.18 NFPA#: 2-1-1 Certifiable
Related Products: Resazurin
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Alizarin Red S Solution, 1% Aqueous
GFS ChemicalspH range 4.6-6.0 yellow-red CAS#: 130-22-3
Related Products: Alizarin Red S
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1-Amino-2-Naphthol-4-Sulfonic Acid Reagent (ACS)
GFS ChemicalsRelated Products: Amino Naphthol Sulfonic Acid
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Starch Indicator Solution, 1%
GFS ChemicalsCAS#: 9005-84-9 Preserved with Salicylic Acid.
Related Products: Starch Indicator Solution
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Methyl Orange / Xylene Cyanole Solution
GFS ChemicalsMethyl Orange 0.1%, Xylene Cyanole 0.26% in Water
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Metalphthalein (ACS)
GFS ChemicalsC32H32N2O12•nH2O CAS#: 2411-89-4 F.W.: 636.62 Cresolphthalein Complexone
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Methylthymol Blue Sodium Salt (ACS)
GFS ChemicalsC37H40N2O13SNa4 CAS#: 1945-77-3 F.W.: 844.74 Descriptions: Water soluble chelometric indicator.
Related Products: Methylthymol Blue
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Calmagite Solution, 0.1% Aqueous
GFS Chemicals1-(1-Hydroxy-4-methyl-2-phenylazo)-2-naphthol-4-sulfonic Acid CAS#: 3147-14-6 F.W.: 358.38
Related Products: Calmagite Indicator
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SPADNS Reagent (ACS)
GFS Chemicals(HO)2C10H3(SO3Na)2N=NC6H4SO3Na CAS#: 23647-14-5 F.W.: 570.42 (4,5-Dihydroxy-3-(p-sulfophenylazo)-2,7-naphthalene disulfonic acid, trisodium
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Potassium Chromate, Solution, 5%
GFS ChemicalsK2CrO4 CAS#: 7789-00-6 F.W.: 194.20 NFPA#: 4-0-2 Specific Gravity: 1.040 Indicator for volumetric chloride determination.
Related Products: Potassium Chromate Solution
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Chloramine T (ACS)
GFS ChemicalsCH3C6H4SO2NClNa•3H2O CAS#: 7080-50-4 F.W.: 281.70 NFPA#: 3-1-2 Descriptions: (N-chloro-p-toluenesulfonamide, sodium salt)
Related Products: Chloramine
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Bromcresol Purple Solution, 0.04% Aqueous
GFS ChemicalsC21H15Br2O5SNa CAS#: 62625-30-3 F.W.: 562.22
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Starch Indicator Solution, 2%
GFS ChemicalsPreserved with Salicylic Acid
Related Products: Starch Solution
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Starch, Soluble (ACS)
GFS Chemicals(C6H10O5)n CAS#: 9005-84-9 For iodometry Potato starch.
Related Products: Starch Soluble
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