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243663

Sigma-Aldrich

Sodium hypophosphite hydrate

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About This Item

Linear Formula:
NaH2PO2 · xH2O
CAS Number:
Molecular Weight:
87.98 (anhydrous basis)
EC Number:
MDL number:
UNSPSC Code:
12352300
PubChem Substance ID:
NACRES:
NA.55

assay

~95% (NaH2PO2)

Quality Level

form

powder, crystals or chunks

SMILES string

O.[Na+].OP[O-]

InChI

1S/Na.H3O2P.H2O/c;1-3-2;/h;3H2,(H,1,2);1H2/q+1;;/p-1

InChI key

PLZNPHDJGFDNRM-UHFFFAOYSA-M

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Application

Sodium hypophosphite hydrate can be used as:
  • A radical precursor to synthesize mono alkyl phosphinic acids via radical reaction with alkenes in the presence of Et3B as the initiator.
  • A reagent for the reduction of the diazonium salt.
  • A hydrogen donor in the transfer-hydrogenation reactions.
  • A catalyst in the esterification reaction.

It can also be used to compose the finishing solutions for the immobilization of photo-initiator (benzophenone ) onto cotton fabrics.
Sodium hypophosphite hydrate is widely used as an esterification catalyst. It may be used to compose the finishing solutions for the incorporation of benzophenone (photoinitiator) onto cotton fabrics.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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UV-induced graft polymerization of acrylamide on cellulose by using immobilized benzophenone as a photo-initiator.
Hong KH, et al.
European Polymer Journal, 45(8), 2443-2449 (2009)
X-Ray Photoelectron Spectroscopy of Lignocellulosic Materials Treated with Malea Ted Polypropylenes
Kazayawoko M, et al.
J. Wood Chem. Technol., 18(1), 1-26 (1998)
S Deprèle et al.
The Journal of organic chemistry, 66(20), 6745-6755 (2001-10-02)
A novel and practical approach to monosubstituted phosphinic acid (alkylphosphonous acid) derivatives from hypophosphite salts or esters is described. Phosphorus-centered radical formation is initiated with Et(3)B/O(2), and the reaction is conveniently conducted at room temperature in an open flask. In
Photoactive antibacterial cotton fabrics treated by 3, 3', 4, 4'-benzophenonetetracarboxylic dianhydride.
Hong KH and Sun G.
Carbohydrate Polymers, 84(3), 1027-1032 (2011)
Photocatalytic functional cotton fabrics containing benzophenone chromophoric groups.
Hong KH and Sun G.
Journal of Applied Polymer Science, 106(4), 2661-2667 (2007)

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