USD $1.00-10.00 / Kilogram
product name
|
sodium alginate
|
cas no.
|
9005-38-3
|
chemical formula
|
c6h9o7na
|
purity
|
-
|
appearance
|
white powder
|
items | standards | ||
appearance | white powder | ||
particule size | 80 mesh | ||
viscosity (mpa.s, 1% solution, 20℃) | 1000 mpa.s(1%solution natural basis | ||
assay (dry basis, %) | 90.8 - 106% | ||
loss on drying (105℃, 4h) | ≤ 15% | ||
ph (1% solution) | 6.0 - 7.5 | ||
water insolubles (dry basis) | ≤ 2% | ||
total ash | 18 - 27% | ||
copper (cu) | ≤ 10ppm | ||
zinc (zn) | ≤ 10ppm | ||
lead (pb) | ≤ 3ppm | ||
arsenic (as) | ≤ 2ppm | ||
mercury (hg) | ≤ 1ppm | ||
cadmium (cd) | ≤ 1ppm | ||
total heavy metals (as pb) | ≤ 10ppm | ||
total plate count | ≤ 5000 cfu/g | ||
yeast & mould | ≤ 500 cfu/g | ||
salmonella/ 10g | absent | ||
e. coli/ 5g | absent | ||
rormaldehyde | ≤50mg/kg |