Phosphoric acid

Name: Phosphoric acid
Brand: ALDRICH

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

Synonym(s):

Orthophosphoric acid

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About This Item

Linear Formula:

H₃PO₄

CAS Number:

7664-38-2

Molecular Weight:

98.00

UNSPSC Code:

26111700

NACRES:

NA.23

PubChem Substance ID:

24868686

EC Number:

231-633-2

Beilstein/REAXYS Number:

1921286

MDL number:

MFCD00011340

Product Name

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

InChI key

NBIIXXVUZAFLBC-UHFFFAOYSA-N

InChI

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

SMILES string

OP(O)(O)=O

vapor density

3.4 (vs air)

vapor pressure

2.2 mmHg ( 20 °C)
5 mmHg ( 25 °C)

assay

≥99.999% trace metals basis

form

liquid

greener alternative product characteristics

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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

, Enabling

Quality Level

100

Gene Information

human ... SRC(6714)

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Battery Materials

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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

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.

Other Notes

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

Packaging

Packaged in poly bottles

pictograms

GHS05,GHS07

signalword

Danger

hcodes

H290,H302,H314

pcodes

P234 - P270 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338

Hazard Classifications

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

Storage Class

8A - Combustible corrosive hazardous materials

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

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Activation of graphene aerogel with phosphoric acid for enhanced electrocapacitive performance

Sun X, et al.

Carbon, 92, 1-10 (2015)

Proton-conducting membranes based on benzimidazole polymers for high-temperature PEM fuel cells. A chemical quest

Asensio JA, et al.

Chemical Society Reviews, 39(8), 3210-3239 (2010)

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)

Proton conductivity of phosphoric acid doped polybenzimidazole and its composites with inorganic proton conductors