1. Basic information

1. Chemical name: Zinc oxide

2. Chinese aliases: zinc oxide; zinc oxide powder; zinc white; zinc white powder; zinc oxide; zinc suboxide

3. English name: Zinc oxide

4. Molecular formula: ZnO

5. Molecular weight: 81.39

6. CAS number: 1314-13-2

7. EINECS number: 215-222-5

8. Appearance: White to gray powder or crystal

II. Technical Parameters

Indirect process zinc oxide

project

indicator

Type I

Type II

Type III

Appearance

white powder

Zinc oxide content (calculated as dry powder), w/% ≥

ninety-nine point seven zero

ninety-nine point seven zero

ninety-nine point five zero

Metallic content (calculated as Zn), w/% ≤

nothing

nothing

zero point zero zero eight

Insoluble matter in hydrochloric acid, w/% ≤

zero point zero zero six

zero point zero zero eight

zero point zero three

Loss on ignition, w/% ≤

zero point two zero

zero point two zero

zero point two five

Sieve residue (45μm test sieve), w/% ≤

zero point one zero

zero point one five

zero point two zero

Water soluble matter, w/% ≤

zero point one zero

zero point one zero

zero point one five

Volatile matter at 105℃, w/% ≤

zero point three

zero point four

zero point five

Lead (Pb) content, w/% ≤

0.008 0

zero point zero five

zero point one zero

Copper (Cu) content, w/% ≤

0.000 2

0.000 4

0.000 7

Manganese (Mn) content, w/% ≤

0.000 1

0.000 1

0.000 3

Cadmium (Cd) content, w/% ≤

0.002 0

0.005 0

zero point zero one zero

Iron (Fe) content, w/% ≤

0.005 0

zero point zero one zero

—

Specific surface area (m2/g)

agree upon

—

Oil absorption */g/100 g)

agree upon

Color*

agree upon

Color-reducing power*

agree upon

*Zinc oxide (indirect method) products for pigment use only.

Direct process zinc oxide

Indicator Items

Primarily used in industrial sectors such as rubber

Primarily used in industrial sectors such as coatings

Primarily used in industrial sectors such as ceramics

ZnO-X1

ZnO-X2

ZnO-T1

ZnO-T2

ZnO-T3

ZnO-C1

ZnO-C2

Zinc oxide (calculated as dry product)/%, ≥

ninety-nine point five

ninety-nine

ninety-nine point five

ninety-nine

ninety-eight

ninety-nine point three

ninety-nine

Lead oxide (PbO)/%, ≤

zero point one two

zero point two zero

—

—

—

—

—

Iron oxide (Fe2O3) /%, ≤

—

—

—

—

—

zero point zero five

zero point zero eight

Cadmium oxide (CdO), % (by weight), ≤

zero point zero two

zero point zero five

—

—

—

—

—

Copper oxide (CuO)/%, ≤

zero point zero zero six

—

—

—

—

—

—

Manganese (Mn) / %, ≤

zero point zero zero zero two

—

—

—

—

—

—

Metallic zinc

nothing

nothing

nothing

—

—

—

—

Insoluble matter in hydrochloric acid, % or less

zero point zero three

zero point zero four

—

—

—

zero point zero eight

zero point zero eight

Loss on ignition /%, ≤

zero point four

zero point six

zero point four

zero point six

—

zero point four

zero point six

Water soluble matter, % (or less)

zero point four

zero point six

zero point four

zero point six

zero point eight

zero point four

zero point six

Sieve residue (45μm wet sieve)/%, ≤

zero point two eight

zero point three two

zero point two eight

zero point three two

zero point three five

zero point two eight

zero point three two

Volatile matter at 105℃, % or less

zero point four

zero point four

zero point four

zero point four

zero point four

zero point four

zero point four

Covering power, ≤/(g/m2)

—

—

one hundred and fifty

one hundred and fifty

one hundred and fifty

—

—

Oil absorption, ≤/(g/100 g)

—

—

eighteen

twenty

twenty

—

—

Discoloration resistance, ≤/%

—

—

one hundred

ninety-five

ninety-five

—

—

Color (compared to standard sample)

—

meet the standard

Note: If there are special requirements, they shall be negotiated by both the supplier and the buyer.

nano zinc oxide

project

indicator

Category 1

Type 2

Category 3

Zinc oxide (ZnO) /% ≥

ninety-nine

ninety-seven

ninety-five

Average particle size under electron microscopy / nm ≤

one hundred

one hundred

one hundred

XRD line broadening method average grain size /nm ≤

one hundred

one hundred

one hundred

Specific surface area (m2/g) ≥

fifteen

fifteen

thirty-five

Reunion index ≤

one hundred

one hundred

one hundred

Lead (Pb) / % ≤

zero point zero zero one

zero point zero zero one

zero point zero three

Manganese (Mn) / % ≤

zero point zero zero one

zero point zero zero one

zero point zero zero five

Copper (Cu) / % ≤

0.000 5

0.000 5

zero point zero zero three

Cadmium (Cd) /% ≤

0.001 5

zero point zero zero five

—

Mercury (Hg) / % ≤

0.000 1

—

—

Arsenic (As) / % ≤

0.000 3

—

—

Volatile matter at 105℃/% ≤

zero point five

zero point five

zero point seven

Water soluble matter/% ≤

zero point one zero

zero point one zero

zero point seven

Insoluble matter in hydrochloric acid/% ≤

zero point zero two

zero point zero two

zero point zero five

Loss on ignition/% ≤

—

two

four

(The above parameters are reference values, and the specific details are subject to the factory inspection sheet.)

III. Packaging Specifications

25kg bag