Inspection items

Inspection index

Test results

 Appearance

White, needle-shaped crystalline particles, no visible impurities

White, needle-shaped crystalline particles, no visible impurities

Mass fraction of ammonium perchlorate (as NHCIO),%

≥99.5

99.84

Mass fraction of image compound (based on NaCl),%

≤0.1

0.0069

Mass fraction of chlorate (as NaClO),%

≤0.02

0.012

Mass fraction of bromate (based on NaBrO),%

≤0.004

0

Mass fraction of iron (in Fe),%

≤0.001

<0.0005

Mass fraction of water insoluble matter,%

≤0.02

0.0016

Mass fraction of sulfated ash,%

≤0.25

0.042

Mass fraction of surface water,%

≤0.06

0.045

PH value

4.3～5.8

5.03

Thermal stability (177 ± 2 ℃), 3H

No decomposition

No decomposition