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sodium hydrogen 2-[1-(2-hydroxy-5-sulphonatophenyl)-3-phenyl-5-formazano]benzoate

sodium hydrogen 2-[1-(2-hydroxy-5-sulphonatophenyl)-3-phenyl-5-formazano]benzoate

CAS: 62625-22-3

Molecular Formula: C20H15N4NaO6S

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sodium hydrogen 2-[1-(2-hydroxy-5-sulphonatophenyl)-3-phenyl-5-formazano]benzoate - Names and Identifiers

Name sodium hydrogen 2-[1-(2-hydroxy-5-sulphonatophenyl)-3-phenyl-5-formazano]benzoate
Synonyms ZINCON FOR THE PHOTOMETRIC DETERMINATION
2-Carboxy-2′-hydroxy-5′-sulfoformazyl-benzene monosodium salt
5-(o-Carboxyphenyl)-1-(2-hydroxy-5-sulfophenyl)-3-phenyl forMazan
1-(2′-Hydroxy-5′-sulfophenyl)-3-phenyl-5-(2″-carboxyphenyl)forMazan
2-[5-(2-Hydroxy-5-sulfophenyl)-3-phenyl-1-formazyl]benzoic acid monosodium salt
Sodium hydrogen 2-(1-(2-hydroxy-5-sulphonatophenyl)-3-phenyl-5-formazano)benzoate
sodium hydrogen 2-[1-(2-hydroxy-5-sulphonatophenyl)-3-phenyl-5-formazano]benzoate
1-(2-Hydroxycarbonyl-phenyl)-5-(2-Hydroxy-5-sulfophenyl)-3-phenylformazan,sodiumsalt
Benzoic acid, 2-(1-(2-hydroxy-5-sulfophenyl)-3-phenyl-5-formazano)-, monosodium salt
Benzoic acid, 2-(2-hydroxy-5-sulfophenyl)azophenylmethylenehydrazino-, monosodium salt
ZINCON(2-[2-[ALPHA(2-HYDROXY-5-SULFOPHENYLAZO)BENZYLIDENE]HYDRAZINO]BENZOICACIDSODIUMSALT)
sodium 3-[N-[(2-carboxyphenyl)amino]-C-phenyl-carbonimidoyl]azo-4-hydroxy-benzenesulfonate
Benzoic acid, 2-((((2-hydroxy-5-sulfophenyl)azo)phenylmethylene)hydrazino)-, monosodium salt
CAS 62625-22-3
EINECS 263-651-1
InChI InChI=1/C20H16N4O6S.Na/c25-18-11-10-14(31(28,29)30)12-17(18)22-24-19(13-6-2-1-3-7-13)23-21-16-9-5-4-8-15(16)20(26)27;/h1-12,21,25H,(H,26,27)(H,28,29,30);/q;+1/p-1/b23-19+,24-22+

sodium hydrogen 2-[1-(2-hydroxy-5-sulphonatophenyl)-3-phenyl-5-formazano]benzoate - Physico-chemical Properties

Molecular FormulaC20H15N4NaO6S
Molar Mass462.41
Melting Point250-260°C (dec.)
Water SolubilitySoluble in aqueous alkali. Slightly soluble in water and alcohol. Insoluble in other organic solvents.
AppearanceSolid
ColorDark violet powder
OdorOdorless
BRN3872699

sodium hydrogen 2-[1-(2-hydroxy-5-sulphonatophenyl)-3-phenyl-5-formazano]benzoate - Risk and Safety

Hazard SymbolsXi - Irritant
Irritant
Risk CodesR36/38 - Irritating to eyes and skin.
R36/37/38 - Irritating to eyes, respiratory system and skin.
Safety DescriptionS26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36 - Wear suitable protective clothing.
WGK Germany3
TSCAYes
HS Code29280000

sodium hydrogen 2-[1-(2-hydroxy-5-sulphonatophenyl)-3-phenyl-5-formazano]benzoate - Reference Information

EPA chemical information Information provided by: ofmpub.epa.gov (external link)
Uses Colorimetric determination of zinc and copper; direct determination of zinc complexation indicator, and determination of copper and mercury; indirect titration of calcium as a complexation indicator, Zinc, copper, nickel, cobalt, iron, manganese, cadmium, lead, cerium and indium
Indicator for colorimetric determination of zinc, copper and mercury. Indirect titration of calcium, zinc, copper, nickel, cobalt, iron, manganese, cadmium, lead, cerium and indium as a complexation indicator.
production method 1.? Stir anthranilic acid into a paste with a small amount of water, slowly add concentrated hydrochloric acid, cool to 0 ℃ and then add sodium nitrite for diazotization reaction, then add 20% sodium sulfite paste, acetic acid and zinc powder mixed with water at 10 ℃, stir and keep the temperature for 2 hours, when the solution is transparent, filter out the insoluble matter, after the filtrate is cooled, add concentrated hydrochloric acid, let the crystal of o-carboxyphenylhydrazine obtained by standing cooling and crystallization to make a saturated aqueous solution. The filtered filtrate is added with a 1:1 benzyl-ethanol solution under stirring until the yellow paste is precipitated, and the stirring is continued for 10-20min. After filtering, benzaldehyde shrinkage -2-carboxyphenylhydrazone is obtained for later use. The reaction formula of the above process is: add ice water and hydrochloric acid to o-hydroxyaniline -5-sulfonic acid to cool it to below 5 ℃, slowly add sodium nitrite solution under stirring for diazo reaction, and control the end point with potassium iodide-starch test paper. After the diazotization is completed, the solution formed by mixing the standby phenylhydrazone and 5% sodium hydroxide is slowly added under stirring, and the sodium hydroxide solution is added until it is fully dissolved, the temperature is controlled not to exceed 10 ℃, standing for 2h, filtering, adding acetic acid to the filtrate until acidic, and recrystallizing the precipitated crystals with ethanol to obtain pure products.
Last Update:2024-04-09 15:16:44
sodium hydrogen 2-[1-(2-hydroxy-5-sulphonatophenyl)-3-phenyl-5-formazano]benzoate
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CAS: 62625-22-3
Tel: +86-18821248368
Email: Int06@meryer.com
Mobile: +86-18821248368
QQ: 495145328 Click to send a QQ message
WhatsApp: +86-18821248368
Shanghai Yuanye Bio-Technology Co., Ltd.
Multiple SpecificationsSpot supply
Product Name: Zincon Visit Supplier Webpage Request for quotation
CAS: 62625-22-3
Tel: 18301782025
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sodium hydrogen 2-[1-(2-hydroxy-5-sulphonatophenyl)-3-phenyl-5-formazano]benzoate
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