LaMotte SMART Spectro Spectrophotometer - Manual (Page 144)

HYDRAZINE
p-DIMETHYLAMINOBENZALDEHYDE METHOD
CODE 3656-SC
QUANTITY CONTENTS CODE
2x60 mL * Hydrazine Reagent A *4841-H
10 g * Hydrazine Reagent B Powder *4842-D
1 Pipet, 1.0 mL, plastic 0354
1 Spoon, 0.15 g, plastic 0727
*WARNING: Reagents marked with a * are considered to be potential health hazards. To view
or print a Material Safety Data Sheet (MSDS) for these reagents see MSDS CD or
www.lamotte.com. To obtain a printed copy, contact LaMotte by e-mail, phone or fax.
Hydrazine, N
2
H
4
, is added to the water in high pressure boilers to reduce
corrosion by acting as an oxygen scavenger.
APPLICATION: Boiler and cooling waters; industrial wastewaters.
RANGE: 0.00–1.00 ppm Hydrazine
METHOD: p-Dimethylaminobenzaldehyde reacts with hydrazine under
acidic conditions to form a yellow color in proportion to the
amount of hydrazine present.
SAMPLE
HANDLING &
PRESERVATION: Samples should be analyzed as soon as possible after
collection due to the ease with which hydrazine becomes
oxidized. Acidification of the sample may increase the time
between collection and analysis.
INTERFERENCES: The substances normally present in water do not interfere
with the test, with the exception of strong oxidizing agents.
SMART SPECTRO TEST PROCEDURES 05.04 Hydrazine 1/2