Citric Acid Anhydrous

we are offering citric acid anhydrous. description:free flowing,colorless or white crystalline powder.specification:
item unit bp 2009 usp 32 fcc 6 e 330 gb1987-2007
characters white crystalline powders,colorless crystals or granules
identification pass test
color & clarity of solution pass test pass test / pass test /
assay % 99.5-100.5 99.5-100.5
water % ≤1.0 ≤1.0 ≤0.5 ≤0.2 ≤0.5
light transmittance % / / / / ≥96.0
calcium ppm / / / ≤75 ≤200
iron ppm / / / ≤5 ≤5
arsenic ppm / / / ≤1 ≤1
mercury ppm / / / ≤1 /
heavy metals ppm ≤10 ≤10 / ≤5 /
oxalate ppm ≤360 ≤360 pass test ≤100 ≤100
chloride ppm / / / / ≤50
sulphate ppm ≤150 ≤150 / ≤150 ≤100
readily carbonisable substances not darker than standard not darker than standard pass test pass test ≤1.0
sulphated ash % ≤0.1 ≤0.1 ≤0.05 ≤0.05 ≤0.05
volatile organic impurities / / pass test
tridodecylamine mg/kg / / ≤0.1
lead ppm / / ≤0.5 ≤0.5 ≤0.5
aluminum ppm ≤0.2 ≤0.2 / / /
bacterial endotoxins iu/mg