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Sigma-Aldrich

Phosphoric acid

JIS special grade, ≥85.0%

Synonym(s):

Orthophosphoric acid

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About This Item

Linear Formula:
H3PO4
CAS Number:
7664-38-2
Molecular Weight:
98.00
Beilstein/REAXYS Number:
1921286
EC Number:
231-633-2
MDL number:
MFCD00011340
UNSPSC Code:
12352106
PubChem Substance ID:
329752611

grade

JIS special grade

vapor density

3.4 (vs air)

vapor pressure

2.2 mmHg ( 20 °C)
5 mmHg ( 25 °C)

assay

≥85.0%

form

liquid

availability

available only in Japan

bp

158 °C (lit.)

mp

~40 °C (lit.)

density

1.685 g/mL at 25 °C (lit.)

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

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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

8A - Combustible corrosive hazardous materials

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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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Phosphoric acid ACS reagent, ≥85 wt. % in H2O

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Sigma-Aldrich

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Phosphoric acid

W M Fennis et al.
Journal of dental research, 93(1), 36-41 (2013-10-25)
The objective of this randomized control trial was to compare the five-year clinical performance of direct and indirect resin composite restorations replacing cusps. In 157 patients, 176 restorations were made to restore maxillary premolars with Class II cavities and one
Alex W Gregory et al.
Organic letters, 15(17), 4330-4333 (2013-08-30)
A highly enantioselective hydroamination/N-sulfonyliminium cyclization cascade is reported using a combination of gold(I) and chiral phosphoric acid catalysts. An initial 5-exo-dig hydroamination and a subsequent phosphoric acid catalyzed cyclization process provide access to complex sulfonamide scaffolds in excellent yield and
Li Yan Chan et al.
The Journal of organic chemistry, 78(17), 8826-8832 (2013-08-07)
A simple and efficient method is developed for Pd-catalyzed ortho-acetoxylation using organophosphates, namely, benzylic phosphonic and aryl phosphoric monoacids, as the directing group.
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
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
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