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15175

Sigma-Aldrich

Bis[tetrakis(hydroxymethyl)phosphonium] sulfate solution

technical, 70-75% in H2O (T)

Synonym(s):

Tetrakis(hydroxymethyl)phosphonium sulfate

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About This Item

Linear Formula:
[(HOCH2)4P]2(SO4)
CAS Number:
Molecular Weight:
406.28
Beilstein:
8521357
MDL number:
UNSPSC Code:
12352000
PubChem Substance ID:
NACRES:
NA.22

grade

technical

Quality Level

concentration

70-75% in H2O (T)

impurities

formaldehyde

SMILES string

[O-]S([O-])(=O)=O.OC[P+](CO)(CO)CO.OC[P+](CO)(CO)CO

InChI

1S/2C4H12O4P.H2O4S/c2*5-1-9(2-6,3-7)4-8;1-5(2,3)4/h2*5-8H,1-4H2;(H2,1,2,3,4)/q2*+1;/p-2

InChI key

YIEDHPBKGZGLIK-UHFFFAOYSA-L

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Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 4 Oral - Aquatic Chronic 3 - Carc. 1B - Eye Dam. 1 - Skin Sens. 1

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

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  5. Product 15175, Bis[tetrakis(hydroxymethyl)phosphonium] sulfate solution, is listed as a phase transfer catalyst. What does this mean?

    A phase transfer catalyst (PTC) is a compound that promotes or accelerates a chemical reaction by allowing the migration of a specific chemical component from one phase into another phase in a heterogeneous system. A PTC is typically used when the starting materials for a reaction cannot be mixed into the same phase, which would prevent them from coming into contact each other to react. It can transport a reagent from a hydrophilic phase into the hydrophobic phase (and vice versa) so that the subsequent reaction can occur.

  6. Does Sigma-Aldrich offer any chiral phase transfer catalysts?

    We offer several chiral phase transfer catalysts to produce enantiospecific products.

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Yao Yuan et al.
Polymers, 12(1) (2020-01-08)
Epoxy resin (EP) has widespread applications in thermosetting materials with great versatility and desirable properties such as high electrical resistivity and satisfactory mechanical properties. At present, 9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) is widely applied to EP matrix for high flame resistance. Nevertheless, EP/DOPO
María Carmen Bartolomé et al.
Environmental toxicology and chemistry, 24(12), 3137-3142 (2006-02-01)
This paper reports the acute toxicity of three biocides used in the disinfection of cooling towers, tetrakis(hydroxymethyl) phosphonium chloride (THPC), trichloroisocyanuric acid (TCIC), and sodium bromide (NaBr), on Artemia larvae, their effect on the phototactic response of this organism, and
Comment on: "Basic investigations on the performance of a normoxic polymer gel with tetrakis-hydroxy-methyl-phosphonium chloride as an oxygen scavenger: reproducibility, accuracy, stability, and dose rate dependence" [Med. Phys. 33, 2506-2518 (2006)].
N D MacDougall et al.
Medical physics, 34(1), 366-366 (2007-02-07)
Tetrakis(hydroxymethyl)phosphonium salts.
IARC monographs on the evaluation of carcinogenic risks to humans, 71 Pt 3, 1529-1532 (1999-09-07)
A Jirasek et al.
Physics in medicine and biology, 51(7), 1891-1906 (2006-03-23)
Of the antioxidants used to scavenge oxygen in polymer gel dosimeters, tetrakis (hydroxymethyl) phosphonium chloride (THPC) has been shown to hold great promise due to its rapid oxygen scavenging abilities. In this study we (a) investigate the use of THPC

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