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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:
2037554
MDL number:
EC Index Number:
231-639-5

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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This Item
1.007291.092861.00732
Sulfuric acid 98% for the determination of nitrogen

1.00748

Sulfuric acid 98%

Sulfuric acid 90-91% for Gerber fat determination and determination of nitrates in milk

1.00729

Sulfuric acid 90-91%

Sulfuric acid 40% for determination of gas metabolism acc. to Knipping

1.09286

Sulfuric acid 40%

Sulfuric acid 95-97% for analysis (max. 0.005 ppm Hg) EMSURE&#174; ACS,ISO,Reag. Ph Eur

1.00732

Sulfuric acid 95-97%

Quality Level

300

Quality Level

300

Quality Level

300

Quality Level

300

form

liquid

form

liquid

form

liquid

form

liquid

storage temp.

no temp limit

storage temp.

no temp limit

storage temp.

15-25°C

storage temp.

no temp limit

pH

0.3 (25 °C, 49 g/L in H2O)

pH

-

pH

<1 (20 °C in H2O, strongly acid)

pH

0.3 (25 °C, 49 g/L in H2O)

cation traces

N: ≤1 ppm

cation traces

-

cation traces

-

cation traces

Ag: ≤0.02 ppm, Al: ≤0.05 ppm, As: ≤0.01 ppm, Ba: ≤0.05 ppm, Be: ≤0.01 ppm, Bi: ≤0.1 ppm, Ca: ≤0.2 ppm, Cd: ≤0.02 ppm, Co: ≤0.01 ppm, Cr: ≤0.05 ppm, Cu: ≤0.01 ppm, Fe: ≤0.1 ppm, Ge: ≤0.05 ppm, Hg: ≤0.005 ppm, K: ≤0.1 ppm, Li: ≤0.01 ppm, Mg: ≤0.05 ppm, Mn: ≤0.01 ppm, Mo: ≤0.05 ppm, NH4+: ≤2 ppm, Na: ≤0.5 ppm, Ni: ≤0.02 ppm, Pb: ≤0.02 ppm, Sr: ≤0.02 ppm, Ti: ≤0.1 ppm, Tl: ≤0.05 ppm, V: ≤0.01 ppm, Zn: ≤0.05 ppm, Zr: ≤0.1 ppm, heavy metals (as Pb): ≤1 ppm

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

Signal Word

Danger

Hazard Statements

Hazard Classifications

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

Storage Class Code

8B - Non-combustible, corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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