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SPADNS

Catalog No. AAA1693318
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Quantity:
10 g
50 g

Description

CAS: 23647-14-5 | C16H10N2Na3O11S3+ | 571.408 g/mol

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.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
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.

Solubility
Soluble in water (10 mg/ml), and ethanol (1 mg/ml). very slightly soluble or insoluble in alcohol and organic solvents.

Notes
Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Stable under recommended storage conditions.
TRUSTED_SUSTAINABILITY

Chemical Identifiers

CAS 23647-14-5
Molecular Formula C16H10N2Na3O11S3+
Molecular Weight (g/mol) 571.408
MDL Number MFCD00003952
InChI Key LSAWBVPBZOEGOT-UHFFFAOYSA-L
Synonym Sulfanilic acid azochromotrope; 2-(4-Sulfophenylazo)chromotropic acid trisodium salt
PubChem CID 73658865
IUPAC Name trisodium;5-hydroxy-4-oxo-3-[(4-sulfophenyl)hydrazinylidene]naphthalene-2,7-disulfonate
SMILES C1=CC(=CC=C1NN=C2C(=CC3=CC(=CC(=C3C2=O)O)S(=O)(=O)[O-])S(=O)(=O)[O-])S(=O)(=O)O.[Na+].[Na+].[Na+]

Specifications

Melting Point >300°C
Solubility Information Soluble in water (10mg/ml),and ethanol (1mg/ml). very slightly soluble or insoluble in alcohol and organic solvents.
Formula Weight 570.41
Quantity 50 g
Chemical Name or Material SPADNS

Safety and Handling

Hazard Category H315-H319-H335
Hazard Statement GHS H Statement
H315-H319-H335
Causes skin irritation.
Causes serious eye irritation.
May cause respiratory irritation.
Precautionary Statement P261-P264b-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P332+P313-P362-P501c
EINECSNumber 245-803-9
TSCA Yes
Recommended Storage Ambient temperatures
SDS

RUO – Research Use Only

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