Step-by-step instructions for generating gases in large plastic syringes.
Three Easy Gases. CO2, H2 and O2. How to make these gases in syringes, and 20+ chemical experiments and classroom demonstrations with these gases.
Laboratory Experiments. High school and university level experiments that explore physical and chemical properties of gases.
Mystery gas. Is the gas H2,
O2, CO2,
or air?
Percent Composition of CaCO3 in Tums antacid
Carbonated Beverages — Priestley’s Soda-water
Molar Mass - remarkably accurate results!
Formation of Elemental Iron from Fe2O3 with H2
Reversible oxidation of metallic copper in a pipet
Limiting Reagent
All gases.
Preparation
instructions
for many interesting gases with about ten experiments and classroom
demonstrations for each. Gases include NO, NO2,
SO2,
C2H2,
O3,
NH3,
Cl2,
H2S
and ten others. Percent Composition of CaCO3 in Tums antacid
Carbonated Beverages — Priestley’s Soda-water
Molar Mass - remarkably accurate results!
Formation of Elemental Iron from Fe2O3 with H2
Reversible oxidation of metallic copper in a pipet
Limiting Reagent
Left: Upper syringe had contained colorless NO(g), but as O2(g) is added from the lower syringe, NO2(g) is instantly formed. Right: Underwater fireworks result when Cl2(g) and C2H2(g) are combined in close proximity underwater.
Why Microscale Gas Chemistry?
| • It's fun and easy! Easy to learn
how. Gases ready in 5 minutes! • Great labs! Great demos! Students enjoy making gases. • It's visual! Best way to 'see' a gas is to watch it being produced. • It's microscale in terms of quantities, but large enough to see - 60 mL. • It's inexpensive. A syringe of CO2 costs less than 1 cent to produce. • It's green - little or no chemical wastes. |
 |
Our Gas Reaction Catalyst
Tube can be used to demonstrate a variety of gas phase chemical
reactions. The catalyst contains a layer of disbursed palladium
atoms on a ceramic material and enclosed within a glass housing as per
the fugure. Hydrogenation of alkenes occurs at very temperatures (even
< 0 deg C). A wonderful classroom demonstration shows how a
catalytic converter works by transforming CH4 (or any
hydrocarbon) + NO2 (the reddish mixture in the left
syringe below) into N2 + H2O
+ CO2 (right syringe - condensation droplets
of water are often noticed in right syringe).
Gas Bags
For classroom use, gases
can be prepared and stored in sealable plastic food bags equipped with
a dispensing tube.
Mini-Ozone Generator
Ozone is generated for in situ use.
The Mini-Ozone generator produces 800 nanomole/minute. Safe and easy to
use. Off the shelf classroom demo that anyone can build.
Left: Apparatus dispensing O3 to a flask. Right: Close up of the mini-O3 generator showing the pipet bulb reaction chamber in cup of ice.
Left: Apparatus dispensing O3 to a flask. Right: Close up of the mini-O3 generator showing the pipet bulb reaction chamber in cup of ice.
How to order
our
book and gas prep supplies
Links and Downloads
18th Century and 21st Century Gas Prep Equipment
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Site updated 3 Feb 2010
Links and Downloads
History of gas chemistry
Photographs of Joseph Priestley sites in England along with a chronological summary of his life.
Kipp generators
Other microscale gas chemistry methods:
Gases in your curriculum
Microscale gas methods by other researchers
About us
Contact us
Photographs of Joseph Priestley sites in England along with a chronological summary of his life.
Kipp generators
Other microscale gas chemistry methods:
Gases in your curriculum
Microscale gas methods by other researchers
About us
Contact us
18th Century and 21st Century Gas Prep Equipment
You are visitor number
Site updated 3 Feb 2010
