Skip to Content
Merck
CN

PX0996

o-Phosphoric Acid

greener alternative

85% HPLC, Meets ACS Specifications

Synonym(s):

Phosphoric acid, Orthophosphoric Acid, Orthophosphoric acid

Sign In to View Organizational & Contract Pricing.

Select a Size

About This Item

Linear Formula:
H3PO4
CAS Number:
7664-38-2
Molecular Weight:
98.00
UNSPSC Code:
12352301
MDL number:
MFCD00011340
Beilstein/REAXYS Number:
1921286

Key Documents

View All Documentation
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Product Name

o-Phosphoric Acid 85% HPLC, Meets ACS Specifications

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

grade

ACS reagent

vapor density

3.4 (vs air)

vapor pressure

2.2 mmHg ( 20 °C)
5 mmHg ( 25 °C)

form

viscous liquid

greener alternative product characteristics

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

sustainability

Greener Alternative Product

concentration

85% phosphoric acid

impurities

≤0.001% Heavy metals (as Pb)
≤0.001% Insoluble matter
≤0.001% Sulfate (SO4)
≤0.001% Volatile acids (as acetic acid)
≤0.002% Antimony (Sb)
≤0.002% Calcium (Ca)
≤0.002% Magnesium (Mg)
≤0.003% Iron (Fe)
≤0.005% Potassium (K)
≤0.025% Sodium (Na)
≤0.5 ppm Arsenic (As)
≤0.5 ppm Manganese (Mn)
≤3 ppm Chloride (Cl)
≤5 ppm Nitrate (NO3)

color

APHA: ≤10

pH

<0.5 (20 °C, 100 g/L in H2O)

bp

158 °C (lit.)

mp

~40 °C (lit.)

density

1.685 g/mL at 25 °C (lit.)

UV absorption

λ: 220 nm Amax: ≤0.05
λ: 254 nm Amax: ≤0.04
λ: 300 nm Amax: ≤0.02

greener alternative category

Enabling

shipped in

ambient

storage temp.

room temp

Quality Level

200

Looking for similar products? Visit Product Comparison Guide

Related Categories

Analysis Note

Antimony (Sb)0.002% maxArsenic (As)0.5ppm maxAssay85.0% minCalcium (Ca)0.002% maxChloride (Cl)3ppm maxColor (APHA)10 maxFormClear syrupy liquidHeavy metals (as Pb)0.001% maxInsoluble matter0.001% maxIron (Fe)0.003% maxMagnesium (Mg)0.002% maxManganese (Mn)0.5ppm maxNitrate (NO3)5ppm maxPhosphorous or hypophosphorous acidTo pass testPotassium (K)0.005% maxReducing substancesTo pass testSodium (Na)0.025% maxSulfate (SO4)0.001% maxUV Absorbance at 220 nm (1M, 1cm, water)0.05AU maxUV Absorbance at 254 nm (1M, 1cm, water)0.04AU maxUV Absorbance at 300 nm (1M, 1cm, water)0.02AU maxVolatile acids (as acetic acid)0.001% max

Application

Meets ACS Specifications
PX0996-6 is packaged in poly coated glass bottles

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).

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

Regulatory Information

新产品
This item has

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’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service