ChemicalBook > Product Catalog > Chemical Reagents > Organic reagents > Sulfonates / Sulfinates salts > SPADNS
SPADNS
SPADNS Basic information
- Product Name:
- SPADNS
- Synonyms:
-
- 2-(4-Sulfophenylazo)1,8-dihydroxy-3,6-naphthalenedisulfonic acid, trisodiuM salt, indicator grade 10GR
- 2-(4-Sulfophenylazo)1,8-dihydroxy-3,6-naphthalenedisulfonic acid, trisodiuM salt, indicator grade 25GR
- SPADNS 4,5-Dihydroxy-3-(4-sulfophenylazo)-2,7-naphthalenedisulfonic Acid Trisodium Salt Trisodium 1,8-Dihydroxy-2-(4-sulfophenylazo)naphthalene-3,6-disulfonate 1,8-Dihydroxy-2-(4-sulfophenylazo)naphthalene-3,6-disulfonic Acid Trisodium Salt
- 1,8-DIHYDROXY-2-(4-SULFOPHENYLAZO)NAPHTH
- SPADNS, Reagent, ACS
- 2-(4-Sulfophenylazo)chroMotropic acid trisodiuM salt, indicator
- 1,8-Dihydroxy-2-(4-sulfophenylazo)naphthalene-3,6- disulfonic acid trisodium salt GR for analysis (reagent for fluoride, zirconium, thorium)
- SPADNS
- CAS:
- 23647-14-5
- MF:
- C16H13N2NaO11S3
- MW:
- 528.45
- EINECS:
- 245-803-9
- Product Categories:
-
- Analytical Chemistry
- Azo Compounds
- Organics
- Chelating Reagents
- Naphthylazo Compounds
- Mol File:
- 23647-14-5.mol
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SPADNS Chemical Properties
- Melting point:
- >300°C
- storage temp.
- Store at +15°C to +25°C.
- solubility
- 220g/l
- form
- Crystalline Powder
- color
- Dark red-brown
- PH
- 6.0 (10g/l, H2O, 22℃)
- Water Solubility
- Soluble in water (10 mg/ml), and ethanol (1 mg/ml). very slightly soluble or insoluble in alcohol and organic solvents.
- EPA Substance Registry System
- 2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3-[(4-sulfophenyl)azo]-, trisodium salt (23647-14-5)
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MSDS
- Language:English Provider:SigmaAldrich
- Language:English Provider:ACROS
- Language:English Provider:ALFA
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SPADNS Usage And Synthesis
Chemical Properties
dark red-brown crystalline powder
Uses
Sulfanilic acid azochromotrop is used as an indicator for complexometric determinations of zirconium and thorium. It is used as a reagent for drinking and wastewater analysis using Hach Method 8029, Fluoride, SPADNS Method.
SPADNSSupplier
J & K SCIENTIFIC LTD.
- Tel
- 010-82848833 400-666-7788
- jkinfo@jkchemical.com
Meryer (Shanghai) Chemical Technology Co., Ltd.
- Tel
- 4006608290; 18621169109
- market03@meryer.com
Alfa Aesar
- Tel
- 400-6106006
- saleschina@alfa-asia.com
TCI (Shanghai) Development Co., Ltd.
- Tel
- 021-67121386
- Sales-CN@TCIchemicals.com
Energy Chemical
- Tel
- 021-021-58432009 400-005-6266
- sales8178@energy-chemical.com
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SPADNS(23647-14-5)Related Product Information
- Trisodium naphthalene-1,3,6-trisulphonate
- (ETHYLENEDINITRILO)TETRAACETIC ACID, TRISODIUM SALT HYDRATE
- NITRILOTRIACETIC ACID TRISODIUM SALT MONOHYDRATE
- N,N-BIS(CARBOXYLATOMETHYL)ALANINE TRISODIUM SALT
- CHROMOTROPIC ACID DISODIUM SALT
- 2,7-Naphthalenedisulfonic acid disodium salt
- Sodium 5-hydroxynaphthalene-1-sulphonate
- 6-Amino-4-hydroxy-2-naphthalenesulfonic acid
- Naphthalene-2-sulfonic acid
- CHROMOTROPIC ACID SODIUM SALT
- Sulfanilic acid
- SODIUM SULFANILATE
- Naphthalene-2,7-disulfonic acid
- 3-Hydroxythiophenol
- CHROMOTROPE 2R
- Disodium 3-aminonaphthalene-2,7-disulphonate
- 1,8-Dihydroxynaphthylene-3,6-disulfonic acid
- P-PHENYLAZOBENZENESULFONIC ACID