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Merck

5.43828

ortho-Phosphoric acid

greener alternative

85%, for HPLC LiChropur™

Synonym(s):

Phosphoric acid, o-Phosphoric acid, Orthophosphoric acid, Orthophosphoric acid

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About This Item

Linear Formula:
H3PO4
CAS Number:
7664-38-2
Molecular Weight:
98.00
NACRES:
NA.21
UNSPSC Code:
41116105
MDL number:
MFCD00011340
Beilstein/REAXYS Number:
1921286

Key Documents

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Product Name

ortho-Phosphoric acid 85%, for HPLC LiChropur™

InChI

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

SMILES string

OP(O)(O)=O

InChI key

NBIIXXVUZAFLBC-UHFFFAOYSA-N

vapor density

3.4 (vs air)

vapor pressure

2.2 mmHg ( 20 °C)
5 mmHg ( 25 °C)

Quality Level

100

product line

LiChropur™

form

liquid

greener alternative product characteristics

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

sustainability

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concentration

85%

technique(s)

HPLC: suitable

pH

<0.5 (20 °C, 100 g/L in H2O)

kinematic viscosity

30.5 cSt(20 °C)

bp

158 °C (lit.)

mp

~40 °C (lit.)

solubility

water: soluble at 20 °C

density

1.685 g/mL at 25 °C (lit.)

greener alternative category

Enabling

storage temp.

no temp limit

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General description

We are committed to bringing you Greener Alternative Products, which belong to one of the four categories of greener alternatives. Phosphoric acid-doped polybenzimidazole (PBI) membranes offer a cleaner path to energy by enabling high-temperature fuel cells that efficiently convert hydrogen into electricity with low emissions. Their durability and proton conductivity make them ideal for sustainable power systems. Click here for more information.

Other Notes

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

Legal Information

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

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

does not flash

flash_point_c

does not flash

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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