LEVOXIN
Activated hydrazine hydrate for corrosion control in steam
generation and heating systems
Description
LEVOXIN is BAYER AG's trade name for a productconsisting of an
aqueous solution of hydrazine (N2H4)and a small amount of organic
activator.
LEVOXIN is a clear, slightly yellow liquid with anamine-like
odor. Exposure to light and air may causethe slightly yellow color
to become more brownish.
Chemical formula: N2H4 * H2O
General properties
Supply form
LEVOXIN is obtainable in the form of differentconcentrations of
hydrazine:
LEVOXIN 64 ? 64 % N2H4LEVOXIN 51 ? 51 % N2H4LEVOXIN 35 ? 35 %
N2H4LEVOXIN 22 ? 22 % N2H4LEVOXIN 15 ? 15 % N2H4
The number after the product name corresponds to thepercentage
of N2H4 (pure hydrazine) contained in theproduct. The standard
concentration is LEVOXIN 15with 15 % by wt. hydrazine. Its
hydrazine hydratecontent is at least 23.5 %.
Hazard characteristic
Category 2 carcinogen
Chemical properties
Like non-activated hydrazine hydrate, LEVOXIN i s areactive
nitrogen compound with strong reducingproperties.The
corrosion-inhibiting effect of LEVOXIN is primarilybased on the
activation and acceleration of theoxidation of Fe2+ ions, with the
formation of passivatingoxide layers (magnetite). In addition,
LEVOXIN is an
oxygen binder, with the only reaction products beingnitrogen and
water.Thermal decomposition of LEVOXIN also generatesammonia, which
helps to effect the necessaryalkalization of steam and
condensate.Furthermore, LEVOXIN is an effective inhibitor in
cold,oxygen-containing water and is therefore ideal for thewet
preservation of systems which are temporarily outof action.
Application
Main areas of application
LEVOXIN is successfully used to inhibit corrosion in:
- high, medium and low pressure installations- steam and
condensate lines- circulation heating systems- preservation during
plant shutdowns- closed cooling systems
Restrictions on use
If LEVOXIN is to be used in heating media for warmingfoodstuffs
or drinking water, certain regulations need to becomplied with,
about which we would be glad to informyou.
Further information
See product information sheet LEVOXIN No. SP 30 01 e,edition
2000-06, and corresponding safety data sheets,which we would be
happy to supply you.
BAYER AG, Specialty Products Business Group,D-51368
LeverkusenTel.: +49 (0)214-30 72373Fax: +49 (0)214-30-62985E-Mail:
[email protected]
