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04434

Sodium hypophosphite

puriss., meets analytical specification of BPC63, anhydrous, 98-101%

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About This Item

Linear Formula:
NaPH2O2
CAS Number:
7681-53-0
Molecular Weight:
87.98
UNSPSC Code:
12352302
eCl@ss:
38070302
PubChem Substance ID:
329747926
EC Number:
231-669-9
NACRES:
NA.21
MDL number:
MFCD09265474
Assay:
98-101%
Form:
powder or crystals
Solubility:
water: soluble 909 g/L at 30 °C
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Quality Segment

200

grade

puriss.

assay

98-101%

form

powder or crystals

quality

meets analytical specification of BPC63

impurities

≤0.001% heavy metals (as Pb), ≤0.2% free alkali (as CaO)

loss

≤1% loss on drying, 105 °C, 2 h

solubility

water: soluble 909 g/L at 30 °C

density

1.77 g/cm3 at 20 °C

anion traces

chloride (Cl-): ≤200 mg/kg, sulfate (SO42-): ≤200 mg/kg

cation traces

As: ≤2 mg/kg, Fe: ≤10 mg/kg

SMILES string

[Na+].[O-][PH2]=O

InChI

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

InChI key

SIGUVTURIMRFDD-UHFFFAOYSA-M

General description

Sodium hypophosphite, also known as sodium phosphinate, is a sodium salt of hypophosphorous acid. It is used as a reducing agent for the reduction of metal salts to metals in an aqueous solution. It is also employed as a source of hydrogen in heterogeneous catalytic transfer reductions.

Application


  • Synthesis and characterization of chitosan-copper nanocomposites and their catalytic properties for 4-nitrophenol reduction.: This study explores the synthesis of chitosan-copper nanocomposites using sodium hypophosphite as a reducing agent. The resulting nanocomposites are characterized and their catalytic properties for the reduction of 4-nitrophenol are evaluated, demonstrating the utility of sodium hypophosphite in catalytic applications (Pang et al., 2024).

  • The Durable Chitosan Functionalization of Cellulosic Fabrics.: This research focuses on the durable functionalization of cellulosic fabrics with chitosan using sodium hypophosphite as a cross-linking agent. The study highlights the improved properties of the fabrics, showcasing sodium hypophosphite′s role in textile enhancement (Flinčec Grgac et al., 2023).

  • Hypophosphite cross-linked starch succinate/chitosan membranes as alternative for packaging and pharmaceutical application.: The study investigates the development of starch succinate/chitosan membranes cross-linked with sodium hypophosphite, proposing these materials as potential alternatives for packaging and pharmaceutical applications (Bajer, 2023).

  • Tensile Strength Improvements of Ramie Fiber Threads through Combination of Citric Acid and Sodium Hypophosphite Cross-Linking.: This research improves the tensile strength of ramie fiber threads by combining citric acid and sodium hypophosphite for cross-linking, demonstrating significant enhancements in fiber properties for industrial applications (Wulandari et al., 2023).

  • Nickel-Catalyzed Sodium Hypophosphite-Participated Direct Hydrophosphonylation of Alkyne toward H-Phosphinates.: This study demonstrates a novel nickel-catalyzed hydrophosphonylation of alkynes using sodium hypophosphite. The research showcases the efficiency of sodium hypophosphite in producing H-phosphinates, highlighting its significance in chemical synthesis (Qian et al., 2023).

flash_point_f

Not applicable

flash_point_c

Not applicable

Storage Class

11 - Combustible Solids

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