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84727 Sigma-Aldrich

Sulfuric acid

for the determination of nitrogen, ≥97.5%

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Properties

Related Categories Analytical Reagents, Analytical Reagents for General Use, Analytical/Chromatography, Application Specific Reagents, Decomposition Reagents,
vapor density   <0.3 (25 °C, vs air)
vapor pressure   1 mmHg ( 146 °C)
description   Nominally 95-98% H2SO4
InChI Key   QAOWNCQODCNURD-UHFFFAOYSA-N
assay   ≥97.5% (T)
  ≥97.5%
quality   for the determination of nitrogen
impurities   ≤0.0005% total nitrogen (N)
ign. residue (900 °C)   ≤0.0005%
color   clear
bp   ~290 °C(lit.)
density   1.840 g/mL at 25 °C(lit.)

Description

Packaging

2.5 L in poly bottle

500 mL in poly bottle

Application

Sulfuric acid may be used as digestive reagent in Kjeldahl method to determine nitrogen.

General description

Sulfuric acid can be produced by dry distillation of iron sulfate heptahydrate, copper sulfate pentahydrate. When these compounds were heated they decompose to form iron and copper oxides eliminating water and sulphur trioxide which combine together to form dilute solution of sulphuric acid. It is suitable as dehydrating agent, catalyst, active reactant in chemical industry. It is also suitable to control pH of saline solutions to strong fuming acids.

Price and Availability

Safety & Documentation

Safety Information

Symbol 
GHS05  GHS05
Signal word 
Danger
Hazard statements 
Precautionary statements 
RIDADR 
UN 1830 8 / PGII
WGK Germany 
1
RTECS 
WS5600000
Protocols & Articles
Peer-Reviewed Papers
15

References

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