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230901

Sigma-Aldrich

4-Formylbenzene-1,3-disulfonic acid disodium salt hydrate

97%

Synonym(s):

Benzaldehyde 2,4-disulfonic acid disodium salt, Sodium 4-formylbenzene-1,3-disulfonate

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About This Item

Linear Formula:
HCOC6H3(SO3Na)2 · xH2O
CAS Number:
207291-88-1
Molecular Weight:
310.21 (anhydrous basis)
EC Number:
251-551-0
MDL number:
MFCD00150711
UNSPSC Code:
12171500
PubChem Substance ID:
24853842
NACRES:
NA.47
Pricing and availability is not currently available.

Quality Level

200

Assay

97%

form

powder, crystals or chunks

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

O.[Na+].[Na+].[O-]S(=O)(=O)c1ccc(C=O)c(c1)S([O-])(=O)=O

InChI

1S/C7H6O7S2.2Na.H2O/c8-4-5-1-2-6(15(9,10)11)3-7(5)16(12,13)14;;;/h1-4H,(H,9,10,11)(H,12,13,14);;;1H2/q;2*+1;/p-2

InChI key

YKJQVLWZGODFIH-UHFFFAOYSA-L

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General description

4-Formylbenzene-1,3-disulfonic acid disodium salt hydrate is used in the synthesis of polymer electrolyte membranes, which forms a crucial component of electrochemical devices.[1]

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCS2568
MKCP2693
MKCC6482
MKCJ7885
MKBS0344V

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Preparation and Characterization of an Eco-Friendly Polymer Electrolyte Membrane (PEM) Based in a Blend of Sulphonated Poly (Vinyl Alcohol)/Chitosan Mechanically Stabilised by Nylon 6, 6
Oliveira PN, et al.
Materials Research, 19(4), 954-962 (2016)

Questions

  1. What is the pKa value of this acid

    1 answer

    1. Unfortunately, the pKA value has not been determined for this product.

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