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1.00748

Supelco

Sulfuric acid

98%, for the determination of nitrogen

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Synonym(s):
Sulfuric acid
Linear Formula:
H2SO4
CAS Number:
Molecular Weight:
98.08
Beilstein/REAXYS Number:
2037554
MDL number:
UNSPSC Code:
12352301
EC Index Number:
231-639-5
NACRES:
NA.21

product name

Sulfuric acid 98%, for the determination of nitrogen

vapor density

<0.3 (25 °C, vs air)

Quality Level

vapor pressure

0.0001 hPa ( 20 °C)
1 mmHg ( 146 °C)

assay

≥97.5% (alkalimetric)

form

liquid

ign. residue

≤2 ppm

pH

0.3 (25 °C, 49 g/L in H2O)

bp

~290 °C (lit.)

mp

-20 °C

density

1.840 g/mL at 25 °C (lit.)

cation traces

N: ≤1 ppm

storage temp.

no temp limit

SMILES string

OS(O)(=O)=O

InChI

1S/H2O4S/c1-5(2,3)4/h(H2,1,2,3,4)

InChI key

QAOWNCQODCNURD-UHFFFAOYSA-N

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Application

Sulfuric acid 98% can be used in the Kjeldahl method for the determination of nitrogen.

Analysis Note

Assay (alkalimetric): ≥ 97.5 %
Total nitrogen (N): ≤ 1 ppm
Residue on ignition: ≤ 2 ppm
Date of expiry: see product label

pictograms

Corrosion

signalword

Danger

hcodes

Hazard Classifications

Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


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