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79690

Sigma-Aldrich

Phosphotungstic acid hydrate

for microscopy

Sinônimo(s):

Tungstophosphoric acid

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About This Item

Fórmula linear:
H3[P(W3O10)4] · xH2O
Número CAS:
Peso molecular:
2880.05 (anhydrous basis)
Número MDL:
Código UNSPSC:
12171500
ID de substância PubChem:
NACRES:
MA.02

grau

for microscopy

Nível de qualidade

Formulário

powder or crystals

Impurezas

≤0.002% total nitrogen (N)

perda

≤15% loss on drying

pH

2 (20 °C)

pf

~95 °C (lit.)

solubilidade

water: 0.5 g/10 mL, clear, colorless

traços de ânion

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤100 mg/kg

traços de cátion

Ca: ≤20 mg/kg
Cu: ≤5 mg/kg
Fe: ≤20 mg/kg
K: ≤50 mg/kg
Na: ≤50 mg/kg
Pb: ≤20 mg/kg
Zn: ≤5 mg/kg

aplicação(ões)

diagnostic assay manufacturing
hematology
histology

temperatura de armazenamento

room temp

cadeia de caracteres SMILES

[H]OCCN
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

InChI

1S/H3O4P.H2O.36O.12W/c1-5(2,3)4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/h(H3,1,2,3,4);1H2;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

chave InChI

AVFBYUADVDVJQL-UHFFFAOYSA-N

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Descrição geral

Phosphotungstic acid hydrate is a heteropolyacid.It is a reagent suitable to detect alkaloids and nitrogenous bases. It is suitable for manufacturing organic pigments, and additives in the plating industry. It is known to impart water resistance to plastics, adhesives, and cement. It also is suitable as a catalyst for organic reactions.

Aplicação

Phosphotungstic acid hydrate may be used as a staining agent for the transmission electron microscope (TEM) imaging of cetyltrimethylammonium bromide (CTAB) coated gold nanorods.It may be used in the preparation of:
  1. Phosphotungstic acid doped ormosil hybrid networks
  2. Niobia supported phosphotungstic acid (PTA) catalysts
  3. Titanium dioxide (TiO2) nanoparticles /phosphotungstic acid (HPW) films.

Outras notas

Review of the folin phenol method for the quantitative determination of proteins

Palavra indicadora

Danger

Frases de perigo

Classificações de perigo

Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Dam. 1 - Skin Corr. 1C

Código de classe de armazenamento

8B - Non-combustible corrosive hazardous materials

Classe de risco de água (WGK)

WGK 2

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges


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