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W290017

Sigma-Aldrich

Phosphoric acid solution

85 wt. % in H2O, FCC, FG

Synonym(s):

Phosphoric acid, Orthophosphoric acid

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About This Item

Linear Formula:
H3PO4
CAS Number:
Molecular Weight:
98.00
FEMA Number:
2900
Beilstein:
1921286
MDL number:
UNSPSC Code:
12164502
PubChem Substance ID:
E Number:
E 338
NACRES:
NA.21
Organoleptic:
faint
Grade:
FG
Halal
Kosher
Biological source:
synthetic
Food allergen:
no known allergens
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biological source

synthetic

Quality Level

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.)

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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

Signal Word

Danger

Hazard Statements

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

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Thermal decomposition of basic zinc carbonate in nitrogen atmosphere.
Liu Y, et al.
Thermochimica Acta, 414(2), 121-123 (2004)
Synthesis of ZnO nanoparticles by thermal decomposition of basic zinc carbonate.
Hutera B, et al.
Archives of Metallurgy and Materials, 58(2), 489-491 (2013)
Highly selective phosgene-free carbamoylation of aniline by dimethyl carbonate under continuous-flow conditions.
Grego S, et al.
Organic Process Research & Development, 17(4), 679-683 (2013)
Cui Li et al.
Annals of botany, 123(1), 57-68 (2018-07-19)
The pathways whereby foliar-applied nutrients move across the leaf surface remain unclear. The aim of the present study was to examine the pathways by which foliar-applied Zn moves across the sunflower (Helianthus annuus) leaf surface, considering the potential importance of
Claudia Backes et al.
ACS nano, 13(6), 7050-7061 (2019-06-15)
Liquid phase exfoliation is a commonly used method to produce 2D nanosheets from a range of layered crystals. However, such nanosheets display broad size and thickness distributions and correlations between area and thickness, issues that limit nanosheet application potential. To

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