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Merck
CN

1.00565

ortho-Phosphoric acid

greener alternative

99%, cryst. for analysis EMSURE®

别名:

磷酸, 正磷酸(Orthophosphoric acid, o-Phosphoric acid), 正磷酸

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关于此项目

线性分子式:
H3PO4
化学文摘社编号:
分子量:
98.00
UNSPSC Code:
12352301
EC Index Number:
231-633-2
NACRES:
NA.21
Beilstein/REAXYS Number:
1921286
MDL number:
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产品名称

99%正磷酸, cryst. for analysis EMSURE®

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

vapor density

3.4 (vs air)

vapor pressure

2.2 mmHg ( 20 °C)
5 mmHg ( 25 °C)

product line

EMSURE®

assay

≥99% (acidimetric)

form

solid

potency

2740 mg/kg LD50, skin (Rabbit)

greener alternative product characteristics

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

sustainability

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concentration

85% phosphoric acid

impurities

≤20 ppm Substances reducing potassium permanganate (as O)
≤20 ppm Volatile acids (as CH3COOH)

pH

<0.5 (20 °C, 100 g/L in H2O)

bp

158 °C (lit.)

mp

~40 °C (lit.)

solubility

750-850 g/L

density

1.685 g/mL at 25 °C (lit.)
1.84 g/cm3 at 38 °C

anion traces

chloride (Cl-): ≤2 ppm
fluoride (F-): ≤0.5 ppm
nitrate (NO3-): ≤2 ppm
phosphite, hypophosphite (as H3PO3): ≤500 ppm

cation traces

As: ≤1 ppm
Ca: ≤20 ppm
Cd: ≤1 ppm
Co: ≤1 ppm
Cu: ≤1 ppm
Fe: ≤10 ppm
K: ≤5 ppm
Mg: ≤1 ppm
Mn: ≤1 ppm
Na: ≤50 ppm
Ni: ≤1 ppm
Pb: ≤1 ppm
Sb: ≤1 ppm
Zn: ≤1 ppm

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storage temp.

2-30°C

Quality Level

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Analysis Note

含量测定(酸量滴定): ≥ 99 %
同一性:通过测试
氯化物(Cl): ≤ 2 ppm
硝酸盐(NO₃): ≤ 2 ppm
亚磷酸盐和次磷酸盐(以H₃PO₃计): ≤ 500 ppm
氟化物(F): ≤ 0.5 ppm
As(砷): ≤ 1 ppm
Ca(钙): ≤ 20 ppm
Cd(镉): ≤ 1 ppm
Co(钴): ≤ 1 ppm
Cu(铜): ≤ 1 ppm
Fe(铁): ≤ 10 ppm
K(钾): ≤ 5 ppm
Mg(镁): ≤ 1 ppm
Mn(锰): ≤ 1 ppm
Na(钠): ≤ 50 ppm
Ni(镍): ≤ 1 ppm
Pb(铅): ≤ 1 ppm
Sb(锑): ≤ 1 ppm
Zn(锌): ≤ 1 ppm
挥发性酸(以CH₃COOH计): ≤ 20 ppm
可还原高锰酸钾的物质(以O计): ≤ 20 ppm

Other Notes

浓磷酸大约为 85% H3PO4(水溶液)。

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.

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

pictograms

CorrosionExclamation mark

signalword

Danger

Hazard Classifications

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

存储类别

8A - Combustible, corrosive hazardous materials

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

法规信息

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