Lockhart Chemical Co.,Ltd.

Flat A2, 4/F, Kin Lee Bldg.,138-146 Jaffe Road, Wanchai, Hong Kong

Tel : (852) 2802-8342 Email : lockhart@netvigator.com

Fax : (852) 2802-9129 Website : www.lockhart.com.hk

Zinc Oxide 99.7 % Min. (Indirect Method : Made from Zinc Ingot)

Purity (ZnO) 99.7 % Min.

Metallic Zinc Nil

Lead Oxide 0.037% Max.

Copper Oxide 0.0001% Max.

Manganese 0.0001% Max.

Insoluble in HCl 0.006% Max.

Loss on Ignition 0.2% Max.

Water Soluble Matter 0.10% Max.

Residue on Sieve (320 mesh) 0.10% Max.

Oil Absorption 14 % Max.

Tinting Strength 100 Min.

Hiding Power (g/M2) 120 Max.

Zinc Oxide 99.5 % Min. (Direct Method)

Purity (ZnO) 99.5 % Min.

Metallic Zinc Nil

Lead Oxide 0.12 % Max.

Copper Oxide 0.006 % Max.

Manganese 0.0002 % Max.

Insoluble in HCl 0.02% Max.

Loss on Ignition 0.4 % Max.

Water Soluble Matter 0.4 % Max.

Residue on Sieve (320 mesh) 0.28 % Max.

Moisture 0.4 % Max.

Zinc Oxide 99 % Min. (Direct Method)

Purity (ZnO) 99 % Min.

Metallic Zinc Nil

Lead Oxide 0.2 % Max.

Copper Oxide -

Manganese -

Insoluble in HCl 0.03 % Max.

Loss on Ignition 0.6 % Max.

Water Soluble Matter 0.7 % Max.

Residue on Sieve (320 mesh) 0.35 % Max.

Moisture 0.4 % Max.