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452289

Sigma-Aldrich

Phosphoric acid

greener alternative

≥85 wt. % in H2O, ≥99.999% trace metals basis

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Synonym(s):
Orthophosphoric acid
Linear Formula:
H3PO4
CAS Number:
Molecular Weight:
98.00
Beilstein:
1921286
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

vapor density

3.4 (vs air)

Quality Level

vapor pressure

2.2 mmHg ( 20 °C)
5 mmHg ( 25 °C)

Assay

≥99.999% trace metals basis

form

liquid

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

concentration

≥85 wt. % in H2O

bp

158 °C (lit.)

mp

~40 °C (lit.)

density

1.685 g/mL at 25 °C (lit.)

application(s)

battery manufacturing

greener alternative category

SMILES string

OP(O)(O)=O

InChI

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

InChI key

NBIIXXVUZAFLBC-UHFFFAOYSA-N

Gene Information

human ... SRC(6714)

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This Item
345245PHR322249685
Phosphoric acid ≥85 wt. % in H2O, ≥99.999% trace metals basis

Sigma-Aldrich

452289

Phosphoric acid

Phosphoric acid 85 wt. % in H2O, 99.99% trace metals basis

Sigma-Aldrich

345245

Phosphoric acid

Phosphoric acid certified reference material, pharmaceutical secondary standard

Supelco

PHR3222

Phosphoric acid

Phosphoric acid suitable for HPLC, LiChropur™, 85%

Supelco

49685

Phosphoric acid

form

liquid

form

liquid

form

-

form

liquid

bp

158 °C (lit.)

bp

158 °C (lit.)

bp

158 °C (lit.)

bp

158 °C (lit.)

mp

~40 °C (lit.)

mp

~40 °C (lit.)

mp

~40 °C (lit.)

mp

~40 °C (lit.)

application(s)

battery manufacturing

application(s)

battery manufacturing

application(s)

-

application(s)

-

Quality Level

100

Quality Level

200

Quality Level

300

Quality Level

-

General description

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency. Find details here.

Application

Phosphoric acid can be used for a variety of applications, such as:
  • a medium for corrosion inhibition on mild steel
  • an activating agent in the preparation of activated carbon
  • enhancement of electrochemical performance of the substrates for energy devices
  • in the development of polymeric membranes for proton exchange membrane (PEM) based fuel cells

Packaging

Packaged in poly bottles

Other Notes

Concentrated phosphoric acid is approx. 85% H3PO4 (aqueous).

Pictograms

CorrosionExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

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

Storage Class Code

8A - Combustible, corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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25G
Pack Size/Quantity

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ortho-Phosphoric acid 99%

Phosphoric acid puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥85%

Sigma-Aldrich

30417

Phosphoric acid

Physicochemical properties of phosphoric acid doped polybenzimidazole membranes for fuel cells
He R, et al.
Journal of Membrane Science , 277(1-2), 38-45 (2006)
Preparation and characterization of activated carbon from bamboo by microwave-induced phosphoric acid activation
Liu Q, et al.
Industrial Crops and Products, 31(2), 233-238 (2010)
Proton conductivity of phosphoric acid doped polybenzimidazole and its composites with inorganic proton conductors
He R, et al.
Journal of Membrane Science , 226(1-2), 169-184 (2003)
Eco friendly inhibitor for corrosion inhibition of mild steel in phosphoric acid medium
Gunasekaran G and Chauhan LR
Electrochimica Acta, 49(25), 4387-4395 (2004)
Activation of graphene aerogel with phosphoric acid for enhanced electrocapacitive performance
Sun X, et al.
Carbon, 92, 1-10 (2015)

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