Chemical Indicators
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Crystal Violet (C.I. 42555) Indicator ACS, Reagent Ph Eur
MilliporeSigmaGrade: ACS, Reag. Ph Eur CAS No.: 548-62-9 pH: 2.5 - 3.5 (10 g/l, H2O, 20°C) Solubility: 10 g/l (20°C) Melting Point: 189 - 194°C Molar Mass: 407.99 g/mol Bulk Density: 220 - 400 kg/m3 Density: 1.19 g/cm3 (20°C) Hill Formula: C25H30ClN3
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Indigo Carmine, 1.00%, Volumetric
Reagents®Boiling Point: 100°C Density: 1.005 Melting Point: 0.0°C Color: Dark blue liquid Physical State: Liquid pH Range: 6 to 8 Solubility Information: Miscible Storage: Ambient DOT: NOT REGULATED.
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Methyl Orange, Sodium Salt, ACS Reagent
Reagents®Composition: Methyl Orange Sodium Salt 100% Grade: ACS Reagent CAS Number: 547-58-0 Density: 0.99 Chemical Formula: C14H14N3NaO3S Molecular Weight: 327.33 g/mol Melting Point: >300 °C(decomposes) Color: Orange-yellow powder Physical State: Solid pH Range: 3.2 (pink) – 4.4…
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Bromothymol Blue, ACS
BeanTown ChemicalCAS: 76-59-5 EC No: 200-971-2 MDL No: MFCD00005872 RTECS: SJ4500000 Crystalline Molecular Formula: C27H28Br2O5S MW: 624.38 Melting Point: 200-202°
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Phenolphthalein, 2% (w/v), Volumetric
Reagents®Concentration: 2% w/v in Denatured Ethanol Composition: Ethyl Alcohol 83.27%, Water 6.83%, Methyl Alcohol 3.51%, Phenolphthalein 2.50%, Methyl Isobutyl Ketone 1.85%, Ethyl Acetate 1.27%, Petroleum Ether 0.78% Boiling Point: Approximately 77°C Density: 0.8 Melting Point: Approximately -90°C …
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Grade: ACS, Reag. Ph Eur CAS No.: 3051-09-0 pH: 5 (1 g/l, H2O, 20°C) Solubility: 1 g/l (20°C) Molar Mass: 284.19 g/mol Bulk Density: 330 kg/m3 Hill Formula: C8H8N6O6
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Concentration: 0.25% w/v Composition: Water 99.45%, Chloroform 0.30%, Starch Soluble 0.25% Boiling Point: Approximately 100°C Density: 1 Melting Point: Approximately 0°C Color: White translucent liquid Physical State: Liquid Solubility Information: Miscible Shelf Life: 6 Months …
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1-amino-2-naphthol-4-sulfonic Acid, ACS Reagent
GFS ChemicalsThe GFS Chemicals 1-amino-2-naphthol-4-sulfonic acid comes in a light yellow liquid form with an unpleasant odor. The 1-amino-2-naphthol-4-sulfonic acid is ideal for many purposes in professional, scientific and technical fields. Application: For Professional, Scientific and Technical Activities:…
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Fluorescein Sodium (C.I. 45350) Indicator Reagent Ph Eur
MilliporeSigmaGrade: Reag. Ph Eur CAS No.: 518-47-8 pH: 8.3 (10 g/l, H2O, 20°C) Solubility: 500 g/l (20°C) Melting Point: >300°C Molar Mass: 376.27 g/mol Bulk Density: 600 kg/m3 Hill Formula: C20H10Na2O5
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pH 3.2 (red) to pH 4.4 (yellow). APHA, ACS RS
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LaMotte Methyl Red Indicator
LaMotteThe LaMotte methyl red indicator is suitable for use in research facilities and chemical laboratories to conduct wide range of experiments. It is available in sturdy bottle that endures heavy and rigorous usage.
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Eriochrome Black T, 0.80%, Volumetric
Reagents®Concentration: 0.8% in 40% Ethanol/60% Triethanolamine Composition: Triethanolamine 67.57%, Ethyl Alcohol 28.62%, Isopropyl Alcohol 1.58%, Methyl Alcohol 1.43%, Eriochrome Black T 0.80% Density: 1 Color: Dark blue liquid Physical State: Liquid Solubility Information: Miscible Shelf Life:…
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Metalphthalein (ACS)
GFS ChemicalsC32H32N2O12•nH2O CAS#: 2411-89-4 F.W.: 636.62 Cresolphthalein Complexone
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Phenol Red
BeanTown ChemicalCAS: 143-74-8 EC No: 205-609-7 MDL No: MFCD00003552 RTECS: SJ7490000 Powder Molecular Formula: C19H14O5S MW: 354.38 Melting Point: >300°
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Methylene Blue (C.I. 52015) Reagent Ph Eur
MilliporeSigmaFormula: C16H18ClN3S * x H2O (x=2-3) Grade: Reag. Ph Eur pH: 3 (10 g/l, H2O, 20°C) Solubility: 50 g/l (20°C) Melting Point: 180°C (decomposition) Molar Mass: 319.86 g/mol (anhydrous) Bulk Density: 400 - 600 kg/m3 Hill Formula: C16H18ClN3S * x H2O
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pH 3.8 (yellow) to pH 5.4 (blue). Total Alkalinity indicator.
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Phenolphthalein, 0.25% (w/v), Volumetric
Reagents®Concentration: 0.25% w/v in 95% Ethanol Composition: Ethyl Alcohol 85.13%, Water 6.98%, Methyl Alcohol 3.59%, Methyl Isobutyl Ketone 1.89%, Ethyl Acetate 1.30%, Petroleum Ether 0.80%, Phenolphthalein 0.31% Boiling Point: Approximately 77°C Density: 0.8 Melting Point:…
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Iron Indicator Solution, Volumetric
Reagents®Concentration: 2% w/v Salicylic Acid in Methanol Composition: Methyl Alcohol 97.50%, Salicylic Acid 2.50% Boiling Point: Approximately 64.5°C Density: 0.8 Color: Colorless liquid Physical State: Liquid Flash Point: 12°C Solubility Information: Miscible Storage: Ambient DOT:…
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Phenolphthalein, 1% (w/v), Volumetric
Reagents®Concentration: 1% w/v in 95% Ethanol Composition: Ethyl Alcohol 84.33%, Water 6.91%, Methyl Alcohol 3.56%, Methyl Isobutyl Ketone 1.88%, Ethyl Acetate 1.28%, Phenolphthalein 1.25%, Petroleum Ether 0.79% Boiling Point: Approximately 77°C Density: 0.8 Melting Point: Approximately -90°C …
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Starch Indicator, 0.5% (w/v)
chemForce® (powered by Thomas Scientific)Harmonized #: 3822.00.0002 5090 Shelf Life (months): 12 Specific Gravity: 1.00 DOT: Not regulated Appearance: White translucent Physical State: Liquid Flash Point: Not applicable Solubility: Miscible Storage Temperature: Ambient Storage Code: General
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Phenol Red (Phenolsulfonphthalein) Reagent Ph Eur
MilliporeSigmaFormula: (C6H4OH)2C7H4SO3 Grade: Reag. Ph Eur CAS No.: 143-74-8 Solubility: 0.77 g/l (100°C) Melting Point: >300°C Molar Mass: 354.38 g/mol Bulk Density: 200 - 300 kg/m3 Hill Formula: C19H14O5S
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Metanil Yellow, 0.10%
Reagents®Concentration: 0.1% Composition: Water 99.90%, Metanil Yellow 0.10% Boiling Point: Approximately 100°C Density: 1 Melting Point: Approximately 0°C Color: Yellow liquid Physical State: Liquid pH Range: 1.2 (red) - 2.3 (yellow) Solubility Information: Miscible Shelf Life: 24 Months …
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Bromophenol Blue Indicator ACS, Reagent Ph Eur
MilliporeSigmaGrade: ACS, Reag. Ph Eur CAS No.: 115-39-9 Solubility: (20°C) practically insoluble Melting Point: 273°C (decomposition) Molar Mass: 669.96 g/mol Bulk Density: 730 kg/m3 Hill Formula: C19H10Br4O5S
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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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Disulfine Blue Vn 150 (C.I.42045) For Surfactant Tests
MilliporeSigmaCAS No.: 129-17-9 pH: 6.9 (10 g/l, H2O, 20°C) Solubility: 210 g/l (25°C) Melting Point: 290°C (decomposition) Molar Mass: 566.67 g/mol Bulk Density: 600 kg/m3 Hill Formula: C27H31N2NaO6S2
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Boiling Point: 1461°C Density: 2.1 Melting Point: 801°C Color: Orange to reddish-brown solid Physical State: Solid Solubility Information: 370 g/L at 20°C Storage: Ambient DOT: NOT REGULATED.
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Cresolphthalein Complexone
Reagents®Composition: Water 99.94%, Hydrochloric Acid, 0.05%, Metalphthalein 0.01% Boiling Point: 100°C Melting Point: 0.0°C Color: Colorless liquid Physical State: Liquid Solubility Information: Miscible Shelf Life: 6 Months Storage: Ambient Packaging Type: Clear Winpak Container DOT: NOT REGULATED.
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Thymolphthalein, 0.2% (w/v), Volumetric
Reagents®Concentration: 0.2% w/v Composition: Methyl Alcohol 99.75%, Thymolphthalein 0.25% Density: 0.8 Melting Point: -98°C Color: Colorless liquid Physical State: Liquid Flash Point: 11°C Solubility Information: Miscible Shelf Life: 36 Months Storage: Ambient DOT: UN1230, METHANOL…
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Ninhydrin Reagent (ACS)
GFS Chemicals2,2-Dihydroxy-1,3-indanedione;1,2,3-Indanetrione monohydrate. Indicator for amines.