Skip to Content
Merck
All Photos(1)

Documents

W290017

Sigma-Aldrich

Phosphoric acid solution

85 wt. % in H2O, FCC, FG

Synonym(s):

Phosphoric acid, Orthophosphoric acid

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Linear Formula:
H3PO4
CAS Number:
7664-38-2
Molecular Weight:
98.00
FEMA Number:
2900
Beilstein:
1921286
MDL number:
MFCD00011340
UNSPSC Code:
12164502
PubChem Substance ID:
24901383
E Number:
E 338
NACRES:
NA.21

biological source

synthetic

Quality Level

400

grade

FG
Halal
Kosher

reg. compliance

EU Regulation 1333/2008 & 178/2002
FCC

vapor density

3.4 (vs air)

vapor pressure

2.2 mmHg ( 20 °C)
5 mmHg ( 25 °C)

Assay

84.0-86% (by NaOH, titration)

form

liquid

concentration

85 wt. % in H2O

bp

158 °C (lit.)

mp

~40 °C (lit.)

density

1.685 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤0.02%passes test
fluoride (F-): ≤10 ppm
sulfate (SO42-): ≤1500 ppm

cation traces

As: ≤1 ppm
Cd: ≤1 ppm
Hg: ≤1 ppm
Pb: ≤1 ppm

application(s)

flavors and fragrances

Documentation

see Safety & Documentation for available documents

food allergen

no known allergens

Organoleptic

faint

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)

Looking for similar products? Visit Product Comparison Guide

Application


  • A Novel Resistive Sensor Network Utilizing an SAP-Enhanced Ionic Layer and CNT Doping for Multipoint Pressure Measurement.: This article showcases the role of phosphoric acid solutions in creating sensitive and accurate pressure sensors for various technological applications, from healthcare to consumer electronics (Fan et al., 2024).

Other Notes

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

Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H290,H302,H314

Hazard Classifications

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

Storage Class Code

8B - Non-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

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

Amit Kumar Sinha et al.
PloS one, 9(4), e95319-e95319 (2014-04-18)
Oxidative stress and the antioxidant response induced by high environmental ammonia (HEA) were investigated in the liver and gills of three freshwater teleosts differing in their sensitivities to ammonia. The highly ammonia-sensitive salmonid Oncorhynchus mykiss (rainbow trout), the less ammonia
Manabu Ueno et al.
Nature communications, 6, 6332-6332 (2015-03-11)
Alveolar macrophages play a crucial role in the pathogenesis of emphysema, for which there is currently no effective treatment. Bisphosphonates are widely used to treat osteoclast-mediated bone diseases. Here we show that delivery of the nitrogen-containing bisphosphonate alendronate via aerosol
Mian Qi et al.
Journal of the American Chemical Society, 136(43), 15366-15378 (2014-10-18)
Distance measurement in the nanometer range by electron paramagnetic resonance spectroscopy (EPR) in combination with site-directed spin labeling is a very powerful tool to monitor the structure and dynamics of biomacromolecules in their natural environment. However, in-cell application is hampered
Jesús Torres et al.
Annals of anatomy = Anatomischer Anzeiger : official organ of the Anatomische Gesellschaft, 200, 126-133 (2015-05-02)
The aim of this study was to test bone tissue response to monetite granules in comparison with intramembranous autologous bone graft in a rabbit calvaria critical size defect model. Novel monetite granules were synthesized by thermal conversion of set brushite
Alvaro Goyanes et al.
Molecular pharmaceutics, 12(11), 4077-4084 (2015-10-17)
Three dimensional printing (3D printing) was used to fabricate novel oral drug delivery devices with specialized design configurations. Each device was loaded with multiple actives, with the intent of applying this process to the production of personalized medicines tailored at
View All Related Papers

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