General Catalogue Chemistry - BECO Internacional LTDA.

laboratory gases
Compressed gas bottles
There are three ways of obtaining the gases
required for common laboratory experiments:
· One can make small quantities oneself by
means of chemical reactions, e.g. zinc with
hydrochloric acid as a demonstration of hydrogen,
in a gas generator.
A suitable device for this is the gas generator
according to MAEY, equipped with either a
tube with sintered disk or a dropping funnel,
permitting gas generation from either solid
Gas bottle
Cat. No. Type of gas Colour Gas content*
661 010
661 011
661 012
661 013
661 014
hydrogen red 2,0 m3 oxygen blue 2,0 m3 carbon dioxide gray 7,5 kg
nitrogen green 2,0 m3 helium gray 2,0 m3 * with reference to standard temperature and pressure
661 019
Trolley
For one gas bottle 10 l,
with safety chain
280 LEYBOLD DIDACTIC · GENERAL CATALOGUE CHEMISTRY
or liquid materials. Self-production
of gases is recommended only when occasional
small quantities (up to approx. 100 ml)
are required.
· Smaller quantities of gas in gas cans. This type
of gas supply is ideal for small requirements of
pure gases, which can be drawn from the easyto-use
aluminum containers without preparation.
With a volume of 1 l, the gas cans contain
between 12 1 (compressed gas) and 200 1
(liquefied gas).
Our gas bottles are approved by the West German
Technical Inspection Agency (TUeV);
additionally, the hydrogen bottles are also ultrasonically
tested. The required hardness certification
has been issued (manufacturer's certificate
supplied).
The gas bottles are supplied full and are property
of the school (not returnable bottles). They can
be refilled by local suppliers. When necessary,
these will also carry out any testing of the bottles
required by local regulations.
Please note that gas can only be withdrawn using
suitable pressure reducing valves. In addition,
the gas bottles must be secured against falling
over, and must be removed from the classroom
after the lesson using suitable (tip-proof) trolleys
according to applicable laboratory regulations.
Gas bottle
Steel, according to DIN, TÜV-tested, with valve
protection cap and base. The gas bottle is
labelled with the name of the school or institution.
Filled.
Volume: 10 l
Filling pressure: max. 200 bar
Length: 85.5 cm
Diameter: 14 cm
Weight empty: approx. 18 kg
661 020
Trolley
For two gas bottles 10 l,
with safety chain.
· Larger gas quantities in 10 l gas bottles (2 m 3
content). This is the most cost-effective way of
covering large gas requirements. It is primarily
recommended for the supply of the most commonly
used gases, hydrogen and oxygen