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243663

Sigma-Aldrich

Sodium hypophosphite hydrate

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About This Item

Linear Formula:
NaH2PO2 · xH2O
CAS Number:
123333-67-5
Molecular Weight:
87.98 (anhydrous basis)
EC Number:
231-669-9
MDL number:
MFCD06252379
UNSPSC Code:
12352300
PubChem Substance ID:
329752463
NACRES:
NA.55

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Assay

~95% (NaH2PO2)

Quality Level

200

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.[1]
  • A reagent for the reduction of the diazonium salt.[2]
  • A hydrogen donor in the transfer-hydrogenation reactions.[3]
  • A catalyst in the esterification reaction.[4]

It can also be used to compose the finishing solutions for the immobilization of photo-initiator (benzophenone ) onto cotton fabrics.[5]
Sodium hypophosphite hydrate is widely used as an esterification catalyst.[6] It may be used to compose the finishing solutions for the incorporation of benzophenone (photoinitiator) onto cotton fabrics.[5][7]

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
BCCM0916
BCCL3934
BCCJ1513
BCCG9522
BCCG4608

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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
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)
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)
Effect of wood filler treatment and EBAGMA compatibilizer on morphology and mechanical properties of low density polyethylene/olive husk flour composites.
Kaci M, et al.
Express Polymer Letters, 1(7), 467-473 (2007)
Convenient synthesis of 4-methylhistamine and racemic. alpha., 4-dimethylhistamine and. alpha., 4-dimethylhistidine
Davey DD and Lumma Jr WC
The Journal of Organic Chemistry, 54(13), 3211-3213 (1989)
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