1.00748
Sulfuric acid
98%, for the determination of nitrogen
Synonym(s):
Sulfuric acid
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About This Item
Linear Formula:
H2SO4
CAS Number:
Molecular Weight:
98.08
UNSPSC Code:
12352301
EC Index Number:
231-639-5
NACRES:
NA.21
Beilstein/REAXYS Number:
2037554
MDL number:
Assay:
≥97.5% (alkalimetric)
Form:
liquid
Product Name
Sulfuric acid 98%, for the determination of nitrogen
vapor density
<0.3 (25 °C, vs air)
Quality Segment
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
solubility
water: soluble at 20 °C
density
1.840 g/mL at 25 °C (lit.)
cation traces
N: ≤1 ppm
storage temp.
no temp limit
InChI
1S/H2O4S/c1-5(2,3)4/h(H2,1,2,3,4)
InChI key
QAOWNCQODCNURD-UHFFFAOYSA-N
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
Total nitrogen (N): ≤ 1 ppm
Residue on ignition: ≤ 2 ppm
Date of expiry: see product label
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signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
Storage Class
8B - Non-combustible corrosive hazardous materials
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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