... % min. 4. Use as fireworks, explosive, rocket, etc. Ammonium Perchlorate Formula: NH4ClO4Appearance: White acicular crystal powder or particle. Specification:ItemAcicularPurity,%≥99.5% Chloride ... Fe),%≤0.001%Water insolubles,%≤0.02%Sulfate ash,%≤0.25%PH4.3~5.8Heat stability(177±2oC),h≥3%Sodium ... Dict., Dalian116000-CHINATel: 86-411-82521111 Fax: 86-411-82521868 Ammonium Perchlorate