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Merck
CN

30417

Phosphoric acid

greener alternative

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥85%

Synonym(s):

Orthophosphoric acid

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About This Item

Linear Formula:
H3PO4
CAS Number:
Molecular Weight:
98.00
EC Number:
231-633-2
UNSPSC Code:
12352106
PubChem Substance ID:
Beilstein/REAXYS Number:
1921286
MDL number:
eCl@ss:
38070202
Assay:
≥85%
Form:
liquid
Grade:
puriss. p.a., ACS reagent
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grade

puriss. p.a., ACS reagent

Quality Level

agency

USP/NF, reag. ISO, reag. Ph. Eur.

vapor density

3.4 (vs air)

vapor pressure

5 mmHg ( 25 °C), 2.2 mmHg ( 20 °C)

assay

≥85%

form

liquid

greener alternative product characteristics

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

sustainability

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impurities

reducing impurities, in accordance, residual solvents, in accordance, substances precipitated by ammonia, in accordance, ≤0.001% KMnO4 red. matter (as O), ≤0.001% heavy metals (as Pb), ≤0.001% in water insoluble matters, ≤0.001% volatile acids (as CH3COOH)

bp

158 °C (lit.)

mp

~40 °C (lit.)

density

1.685 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤2 mg/kg, fluoride (F-): ≤1 mg/kg, nitrate (NO3-): ≤3 mg/kg, phosphite, hypophosphite (as H3PO3): ≤20 mg/kg, phosphite, hypophosphite (as H3PO3): in accordance, sulfate (SO42-): ≤30 mg/kg

SMILES string

OP(O)(O)=O

cation traces

As: ≤0.5 mg/kg, Ca: ≤10 mg/kg, Cd: ≤1 mg/kg, Co: ≤1 mg/kg, Cr: ≤1 mg/kg, Cu: ≤1 mg/kg, Fe: ≤5 mg/kg, K: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤0.5 mg/kg, Na: ≤20 mg/kg, Ni: ≤1 mg/kg, Pb: ≤1 mg/kg, Sb: ≤2 mg/kg, Zn: ≤2 mg/kg

suitability

passes test for appearance of solution

greener alternative category

InChI

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

InChI key

NBIIXXVUZAFLBC-UHFFFAOYSA-N

Gene Information

human ... SRC(6714)

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.

Application


  • Cooperative Rh/Achiral Phosphoric Acid-Enabled [3+3] Cycloannulation of Carbonyl Ylides with Quinone Monoimines: Synthesis of Benzofused Dioxabicyclo[3.2.1]octane Scaffolds.: This study demonstrates the catalytic role of phosphoric acid in a [3+3] cycloannulation reaction, enabling the efficient synthesis of complex organic scaffolds (Tu et al., 2024).

Other Notes

Concentrated phosphoric acid is approx. 85% H3PO4 (aqueous).
The article number 30417-4X2.5L will be discontinued. Please order the single bottle 30417-2.5L which is physically identical with the same exact specifications.
The article number 30417-4X2.5L-M will be discontinued. Please order the single bottle 30417-2.5L-M which is physically identical with the same exact specifications.
The article number 30417-6X1L will be discontinued. Please order the single bottle 30417-1L which is physically identical with the same exact specifications.
The article number 30417-6X1L-M will be discontinued. Please order the single bottle 30417-1L-M which is physically identical with the same exact specifications.


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pictograms

CorrosionExclamation mark

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

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

危险化学品

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Protocols

Folic acid vs. folate differences and biological activities; implications in fortified foods and supplements for human health.


D S Marinier et al.
Journal of lipid research, 29(9), 1237-1243 (1988-09-01)
In order to study the lipid composition of human white matter, we have developed a 31P NMR spectroscopy method, which allows the determination and quantitation of the main phospholipids found in biological membranes. The technique is based upon the use
Internal versus external surface active sites in ZSM-5 zeolite: Part 1. Fries rearrangement catalyzed by modified and unmodified H3PO4/ZSM-5.
Ghiaci M, et al.
Applied Catalysis A: General, 298, 32-39 (2006)
P Meneses et al.
Journal of lipid research, 29(5), 679-689 (1988-05-01)
The common phospholipids from biological sources were quantitated using phosphorus-31 nuclear magnetic resonance (NMR) spectroscopy in conjunction with an analytical reagent composed of two parts: 1) 2 ml of reagent chloroform in which was dissolved 0.01-100 mg of crude tissue



Global Trade Item Number

SKUGTIN
30417-2.5L04061838253002
30417-6X1L04061838151971
30417-1L04061826666777
30417-4X2.5L04061838253026