1. Basic information
1. Chemical name: Zinc sulfate monohydrate
2. Chinese aliases: Zinc sulfate monohydrate; Zinc sulfate monohydrate; Zinc fertilizer monohydrate; Zinc sulfate monohydrate; Zinc fertilizer
3. English name: Zinc sulfate monohydrate
4. Molecular formula: H2O4S·H2O·Zn
5. Molecular weight: 181.47
6. CAS number: 7446-19-7
7. EINECS number: 616-096-8
8. Appearance: White or slightly yellowish crystals or powder
II. Technical Parameters
Industrial-grade zinc sulfate monohydrate
project
indicator
Premium product
First-class product
qualified product
Main content
(calculated as Zn) w/% ≥
thirty-five point seven zero
thirty-five point three four
thirty-four point six one
(calculated as ZnSO4·H2O) w/% ≥
ninety-eight
ninety-seven
ninety-five
Insoluble matter w/% ≤
zero point zero two zero
zero point zero five zero
zero point one zero
pH (50g/L solution) ≥
four
four
—
Chloride (calculated as Cl) w/% ≤
zero point two zero
zero point six zero
—
Lead (Pb) w/% ≤
zero point zero zero one
zero point zero zero five
zero point zero one zero
Iron (Fe) w/% ≤
zero point zero zero five
zero point zero one zero
zero point zero five zero
Manganese (Mn) w/% ≤
zero point zero one
zero point zero three
zero point zero five
Cadmium (Cd) w/% ≤
zero point zero zero one
zero point zero zero five
zero point zero one zero
Chromium (Cr) w/% ≤
zero point zero zero zero five
—
—
Feed-grade zinc sulfate
Item Day
indicator
ZnSO4·H2O
ZnSO4·7H2O
Zinc sulfate content/% ≥
ninety-four point seven
ninety-seven point three
Zinc content/% ≥
thirty-four point five
twenty-two
Arsenic (As) (mg/kg) ≤
five
five
Lead (Pb) / (mg/kg) ≤
ten
ten
Cadmium (Cd) / (mg/kg) ≤
ten
ten
Crushing particle size
The passing rate of the W=250 μm test sieve, as a percentage, is ≥
ninety-five
—
The passing rate of the W=800 μm test sieve, as a percentage, is ≥
—
ninety-five
(The above parameters are reference values, and the specific values shall be subject to the factory inspection sheet.)
III. Packaging specifications
25kg bag