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345245

Phosphoric acid

Name: Phosphoric acid
Brand: ALDRICH

85 wt. % in H₂O, 99.99% 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:

24861303

MDL number:

MFCD00011340

Beilstein/REAXYS Number:

1921286

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Properties

vapor density

3.4 (vs air)

vapor pressure

2.2 mmHg ( 20 °C), 5 mmHg ( 25 °C)

assay

99.99% trace metals basis

form

liquid

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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,

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)

Description

General description

In aqueous solutions, phosphoric acid behaves as a triprotic acid. The triprotic acid has three ionizable hydrogen atoms, which are lost sequentially.

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Application

Industrially, phosphoric acid may be used in pharmaceuticals, water softeners.

Phosphoric acid has been used as an acid solution for pH adjustment of the fermentation broth in a protocol for the acetone-butanol-ethanol (ABE) fermentation of sugars in a bioreactor.

Phosphoric acid (85 wt. % in H₂O) 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 for energy devices
in the development of polymeric membranes for proton exchange membrane based fuel cells

Packaging

Packaged in clear glass bottles

Other Notes

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

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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

8B - Non-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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

345245-500ML:4.548173938165E12 + 345245-100ML:4.548173938158E12

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