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A solution of 4-nitrophenol appears colorless below pH 5.4 and yellow above pH 7.5. [3] This color-changing property makes this compound useful as a pH indicator . The yellow color of the 4-nitrophenolate form (or 4-nitro phenoxide ) is due to a maximum of absorbance at 405 nm (ε = 18.3 to 18.4 mM −1 cm −1 in strong alkali). [ 4 ]
Chemical formula. C 14 H 6 N 4 O 12: Molar mass: 422.218 g·mol −1 ... Bis(2,4-dinitrophenyl) oxalate (DNPO) is a source of 1,2-dioxetanedione, a chemical used in ...
TCPO, or bis(2,4,6-trichlorophenyl) oxalate, is a chemical used in some types of glow sticks and is a key chemical in many chemiluminescent reactions. TCPO is classified as damaging to human organs and toxic if inhaled with an inhalable toxicity of 3.02 mg/L and oral toxicity LD50 of 820 mg/kg (rat).
2,2'-bis(4-Nitrophenyl)-5,5'-diphenyl-3,3'-(3,3'-dimethoxy-4,4'-diphenylene)ditetrazolium chloride ... Chemical formula. C 40 H 30 Cl 2 N 10 O 6 Molar mass: 817.64 g ...
Bis[2,4,5-trichloro-6-(pentyloxycarbonyl)phenyl]oxalate (also known as bis(2,4,5-trichloro-6-carbopentoxyphenyl) oxalate or CPPO) is an organic compound with the formula (C 5 H 11 O 2 CC 6 HCl 3 O) 2 C 2 O 2. A white solid, it is classified as a diester of oxalic acid. It is an active ingredient for the chemiluminescence in glowsticks. [1]
The borate oxalates are chemical compounds containing borate and oxalate anions.Where the oxalate group is bound to the borate via oxygen, a more condensed anion is formed that balances less cations.
4-Nitrothiophenol is an organosulfur compound with the formula HSC 6 H 4 NO 2. It exists as a yellow solid that is soluble in several organic solvents. It is one of three isomers of nitrothiophenol. It was originally prepared by sulfidation of 4-nitrochlorobenzene, [1] which was improved by intentionally generating a polysulfide intermediate.
The oxalatonickelates are a class of compounds that contain nickel complexed by oxalate groups. They form a series of double salts , and include clusters with multiple nickel atoms. Since oxalate functions as a bidentate ligand it can satisfy two coordinate positions around the nickel atom, or it can bridge two nickel atoms together.