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Phosphotungstic Acid

Phosphotungstic acid (PTA) is an electron dense, water-soluble heteropoly acid. Available in a variety of quantities, PTA can be used as a catalyst, a histological stain component, a negative stain for transmission electron microscopy, etc.
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Phosphotungstic Acid Hydrate (Crystalline/Certified) ACS, Fisher Chemical™

CAS: 12501-23-4 Molecular Formula: H5O41PW12 Molecular Weight (g/mol): 2880.20 MDL Number: MFCD00011342 InChI Key: AVFBYUADVDVJQL-UHFFFAOYSA-N Synonym: phosphotungstic acid hydrate,tungstophosphoric acid,12-tungstophosphoric acid hydrate,phosphoric acid dodecakis tungsten trioxide hydrate,iuaxea,aronis24073,phosphotungstic acid hydrate, reagent grade,phosphotungstic acid hydrate, for microscopy,phosphotungstic acid hydrate, p.a,phosphotungstic acid hydrate, saj special grade PubChem CID: 16212977 IUPAC Name: 12-Tungstophosphate hydrate SMILES: O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.OP(O)(O)=O

EDGE
PubChem CID 16212977
CAS 12501-23-4
Molecular Weight (g/mol) 2880.20
MDL Number MFCD00011342
SMILES O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.OP(O)(O)=O
Synonym phosphotungstic acid hydrate,tungstophosphoric acid,12-tungstophosphoric acid hydrate,phosphoric acid dodecakis tungsten trioxide hydrate,iuaxea,aronis24073,phosphotungstic acid hydrate, reagent grade,phosphotungstic acid hydrate, for microscopy,phosphotungstic acid hydrate, p.a,phosphotungstic acid hydrate, saj special grade
IUPAC Name 12-Tungstophosphate hydrate
InChI Key AVFBYUADVDVJQL-UHFFFAOYSA-N
Molecular Formula H5O41PW12
2

Phosphotungstic acid hydrate

CAS: 12067-99-1 MDL Number: MFCD00041964 Synonym: Tungstophosphoric acid

CAS 12067-99-1
MDL Number MFCD00041964
Synonym Tungstophosphoric acid
3

Phosphotungstic acid hydrate

CAS: 12501-23-4 Molecular Formula: H5O41PW12 Molecular Weight (g/mol): 2880.20 MDL Number: MFCD00011342 InChI Key: AVFBYUADVDVJQL-UHFFFAOYSA-N Synonym: phosphotungstic acid hydrate,tungstophosphoric acid,12-tungstophosphoric acid hydrate,phosphoric acid dodecakis tungsten trioxide hydrate,iuaxea,aronis24073,phosphotungstic acid hydrate, reagent grade,phosphotungstic acid hydrate, for microscopy,phosphotungstic acid hydrate, p.a,phosphotungstic acid hydrate, saj special grade PubChem CID: 16212977 SMILES: O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.OP(O)(O)=O

PubChem CID 16212977
CAS 12501-23-4
Molecular Weight (g/mol) 2880.20
MDL Number MFCD00011342
SMILES O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.OP(O)(O)=O
Synonym phosphotungstic acid hydrate,tungstophosphoric acid,12-tungstophosphoric acid hydrate,phosphoric acid dodecakis tungsten trioxide hydrate,iuaxea,aronis24073,phosphotungstic acid hydrate, reagent grade,phosphotungstic acid hydrate, for microscopy,phosphotungstic acid hydrate, p.a,phosphotungstic acid hydrate, saj special grade
InChI Key AVFBYUADVDVJQL-UHFFFAOYSA-N
Molecular Formula H5O41PW12
4

Phosphotungstic Acid AR Crystal, Macron Fine Chemicals™

CAS: 12067-99-1 Molecular Formula: P2O5·24WO3·nH2O

CAS 12067-99-1
Molecular Formula P2O5·24WO3·nH2O
5

Phosphotungstic Acid Hydrate, MP Biomedicals™

CAS: 12501-23-4 Molecular Formula: H5O41PW12 Molecular Weight (g/mol): 2880.20 MDL Number: MFCD00011342 InChI Key: AVFBYUADVDVJQL-UHFFFAOYSA-N Synonym: phosphotungstic acid hydrate,tungstophosphoric acid,12-tungstophosphoric acid hydrate,phosphoric acid dodecakis tungsten trioxide hydrate,iuaxea,aronis24073,phosphotungstic acid hydrate, reagent grade,phosphotungstic acid hydrate, for microscopy,phosphotungstic acid hydrate, p.a,phosphotungstic acid hydrate, saj special grade PubChem CID: 16212977 IUPAC Name: 12-Tungstophosphate hydrate SMILES: O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.OP(O)(O)=O

PubChem CID 16212977
CAS 12501-23-4
Molecular Weight (g/mol) 2880.20
MDL Number MFCD00011342
SMILES O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.OP(O)(O)=O
Synonym phosphotungstic acid hydrate,tungstophosphoric acid,12-tungstophosphoric acid hydrate,phosphoric acid dodecakis tungsten trioxide hydrate,iuaxea,aronis24073,phosphotungstic acid hydrate, reagent grade,phosphotungstic acid hydrate, for microscopy,phosphotungstic acid hydrate, p.a,phosphotungstic acid hydrate, saj special grade
IUPAC Name 12-Tungstophosphate hydrate
InChI Key AVFBYUADVDVJQL-UHFFFAOYSA-N
Molecular Formula H5O41PW12
6

Phosphotungstic acid hydrate, 83.51%, MP Biomedicals™

CAS: 12501-23-4,6055-72-7 Molecular Formula: H5O41PW12 Molecular Weight (g/mol): 2880.20 MDL Number: MFCD00011342 InChI Key: AVFBYUADVDVJQL-UHFFFAOYSA-N Synonym: phosphotungstic acid hydrate,tungstophosphoric acid,12-tungstophosphoric acid hydrate,phosphoric acid dodecakis tungsten trioxide hydrate,iuaxea,aronis24073,phosphotungstic acid hydrate, reagent grade,phosphotungstic acid hydrate, for microscopy,phosphotungstic acid hydrate, p.a,phosphotungstic acid hydrate, saj special grade PubChem CID: 16212977 IUPAC Name: 12-Tungstophosphate hydrate SMILES: O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.OP(O)(O)=O

PubChem CID 16212977
CAS 12501-23-4,6055-72-7
Molecular Weight (g/mol) 2880.20
MDL Number MFCD00011342
SMILES O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.OP(O)(O)=O
Synonym phosphotungstic acid hydrate,tungstophosphoric acid,12-tungstophosphoric acid hydrate,phosphoric acid dodecakis tungsten trioxide hydrate,iuaxea,aronis24073,phosphotungstic acid hydrate, reagent grade,phosphotungstic acid hydrate, for microscopy,phosphotungstic acid hydrate, p.a,phosphotungstic acid hydrate, saj special grade
IUPAC Name 12-Tungstophosphate hydrate
InChI Key AVFBYUADVDVJQL-UHFFFAOYSA-N
Molecular Formula H5O41PW12
7

Phosphotungstic Acid TS, Ricca Chemical
SDP

CAS: 7732-18-5 Molecular Weight (g/mol): 2880.2 g/mol

CAS 7732-18-5
Molecular Weight (g/mol) 2880.2 g/mol
8

Electron Microscopy Sciences Phosphotungstic Acid, 5% Aqueous
SDP

Phosphotungstic Acid, 5% Aqueous

ENCOMPASS_PREFERRED
9

Electron Microscopy Sciences PTA (Phosphotungstic Acid), Crystal 100 GR
SDP

(Tungstophosphoric Acid)
CAS #12501-23-4 H₃[P(W₃O₁₀)₄] F.W. 2880.17 aq

Tungstophosphoric Acid is used as a fixative and widely as a Negative Stain. References

Issidorides, M.R., and Kasorchis, T. (1981). Dispersed and compact chromatin demonstrated with a new EM Method: phosphotungstic acid-hematoxylin block-staining. Histochemistry 73,21.

ENCOMPASS_PREFERRED
10

Electron Microscopy Sciences Phosphomolybdic Acid Aqueous, 3% 500 ML
SDP

For your convenience in 3% aqueous solution.

ENCOMPASS_PREFERRED
11

Electron Microscopy Sciences Phosphotungstic Acid 1% Aqueous 500 ML
SDP

Reference: For the staining of fibrin and platelets. Carstairs (1965).

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12

Electron Microscopy Sciences Phosphotungstic Acid 5% 500 ML
SDP

Used in Modified Movat's Stain for connective tissue stains – Elastic tissue stains. See Movat, H.Z.;: Demonstration of all connective tissue elements in a single section. Arch Path., 60:289 – 295, 1955 or Roman N., et al: Orcein-hematoxylin in iodized ferric chloride as a stain for elastic tissue. Stain Technology, 42:199 –202, 1967

ENCOMPASS_PREFERRED
13

Sigma Aldrich Fine Chemicals Biosciences Phosphotungstic acid hydrate reagent grade | 12501-23-4 | MFCD00149915 | 10G

Phosphotungstic acid hydrate reagent grade | 12501-23-4 | MFCD00149915 | 10G

ENCOMPASS
14

StatLab Phosphotungstic Acid Hematoxylin (PTAH) 8oz (237mls)
SDP

Phosphotungstic Acid Hematoxylin (PTAH) 8oz (237mls)| EA | Maximum 2 years Room Temperature

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15

StatLab PHOSPHOTUNGSTIC/PHOSPHOMO 1GAL
SDP

Phosphotungstic/Phosphomolybdic acid (1 gallon)

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