|
molecular formula: ch3coona
molecular weight: 82.03
cas no：6505-45-9
properties: white powder. soluble in water. density is 1.528 and melting point is 324℃.
standard: maximum assay of impurities is in %
| specifications/item |
analytically pure-ar
|
chemically pure-cp
|
high purity
|
industrial superior grade
|
|
assay (ch3coona) /%
|
≥99.0
|
≥98.5
|
≥99.0
|
≥98
|
|
ph value (50g/l,25℃)
|
7.5~9.0
|
7.5~9.0
|
7.5~9.0
|
－
|
|
clarity test
|
qualified
|
qualified
|
qualified
|
－
|
|
water insoluble matter/%
|
≤0.005
|
≤0.01
|
≤0.05
|
≤0.04
|
|
chloride(cl) /%
|
≤0.002
|
≤0.005
|
≤0.01
|
≤0.08
|
|
sulfate(so4) /%
|
≤0.003
|
≤0.01
|
≤0.01
|
－
|
|
phosphate(po4) /%
|
≤0.000 5
|
≤0.001
|
≤0.002
|
－
|
|
magnesium (mg) /%
|
≤0.000 5
|
≤0.001
|
－
|
－
|
|
aluminium (al) /%
|
≤0.001
|
≤0.002
|
—
|
－
|
|
calcium (ca) /%
|
≤0.005
|
≤0.005
|
－
|
－
|
|
iron (fe) /%
|
≤0.000 5
|
≤0.001
|
≤0.001
|
≤0.006
|
|
heavy metal (pb) /%
|
≤0.001
|
≤0.002
|
≤0.002
|
－
|
|
free alkali/%
|
－
|
－
|
－
|
≤0.03
|
uses: as chemical reagent, meat preservative, printing and dyeing auxiliary, pharmaceutical excipient and intermediate, and cement additive.
packing: woven bag lined with plastic bag, kraft bag, or fiber drum, net weight is 25kg or 20kg.
|