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79622

Sigma-Aldrich

Acido fosforico

puriss. p.a., crystallized, ≥99.0% (T)

Sinonimo/i:

Acido ortofosforico

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About This Item

Formula condensata:
H3PO4
Numero CAS:
7664-38-2
Peso molecolare:
98.00
Beilstein:
1921286
Numero CE:
231-633-2
Numero MDL:
MFCD00011340
Codice UNSPSC:
12352106
ID PubChem:
329768533
NACRES:
NA.21

Densità del vapore

3.4 (vs air)

Livello qualitativo

200

Tensione di vapore

2.2 mmHg ( 20 °C)
5 mmHg ( 25 °C)

Grado

puriss. p.a.

Saggio

≥99.0% (T)

Stato

powder or crystals

Qualità

crystallized

Impurezze

≤0.002% KMnO4-reducing matter (as O)

P. ebollizione

158 °C (lit.)

Punto di fusione

~40 °C (lit.)
~40 °C

Solubilità

water: 850 g/L at 20 °C

Densità

1.685 g/mL at 25 °C (lit.)

Anioni in tracce

chloride (Cl-): ≤5 mg/kg
nitrate (NO3-): ≤5 mg/kg
phosphite, hypophosphite (as H3PO3): ≤500 mg/kg
sulfate (SO42-): ≤30 mg/kg

Cationi in tracce

As: ≤1 mg/kg
Ca: ≤10 mg/kg
Cd: ≤1 mg/kg
Co: ≤1 mg/kg
Cr: ≤1 mg/kg
Cu: ≤1 mg/kg
Fe: ≤10 mg/kg
K: ≤5 mg/kg
Mg: ≤1 mg/kg
Mn: ≤1 mg/kg
Na: ≤50 mg/kg
Ni: ≤1 mg/kg
Pb: ≤1 mg/kg
Zn: ≤1 mg/kg

Stringa SMILE

OP(O)(O)=O

InChI

1S/H3O4P/c1-5(2,3)4/h(H3,1,2,3,4)
NBIIXXVUZAFLBC-UHFFFAOYSA-N

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Categorie correlate

Descrizione generale

Phosphoric acid (H3PO4) is also known as orthophosphoric acid. It serves as an intermediary or reagent in various manufacturing processes. Phosphoric acid is found in fertilizers, detergents, and other household cleaning products.
The product is crystalline phosphoric acid.

Applicazioni

Phosphoric acid has been employed as an oxidation reagent in a study.1 It may be used in the preparation of ammonium phosphate.
Phosphoric acid is used:
  • As a catalyst in the nucleophilic addition to imines.
  • In the synthesis of porous phosphoric acid-based geopolymers.
  • In the synthesis of mono-alkyl phosphates from simple aliphatic alcohols in the presence of acetic anhydride activator.

Altre note

L′acido fosforico concentrato è circa all′85% H3PO4 (acquoso).

Avvertenza

product may become solid, becomes liquid on heating to 50°C

Pittogrammi

CorrosionExclamation mark
GHS05,GHS07

Avvertenze

Danger

Indicazioni di pericolo

H290,H302,H314

Classi di pericolo

Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B

Codice della classe di stoccaggio

8A - Combustible corrosive hazardous materials

Classe di pericolosità dell'acqua (WGK)

WGK 1

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

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Certificati d'analisi (COA)

Lot/Batch Number
BCCG7861
BCCF1131
BCCF0685
0000105107
0000103547

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