Propanoic acid CAS NO.4075-81-4

specification

gb2921-1999

fcciv

gb25548-2010

e282

content, %

≥99.0

≥99.0

≥99.0

≥99.0

water insolubles, %

≤0.30

≤0.20

≤0.30

≤0.30

free acid or alkaline

to pass test

—

to pass test

—

loss on drying, %

≤9.5

≤5.0

≤9.5

≤4.0

arsenic, %

≤0.0004

≤0.0003

≤0.0003

≤0.0003

heavy metals, %

≤0.001

≤0.002

≤0.001

≤0.001

fluoride, %

≤0.003

≤0.003

≤0.003

≤0.003

iron, %

—

—

≤0.005

≤0.005

ph value

7~9

7.5~10.5

6~9