Oxydum zincum est substantia inorganica cum formula chemica ZnO, oxydi zinci. In aqua est insolubile et solubile in acida et basibus firmis. Spodium zincum commune est chemicum additivum et late in synthetica rubber.

Aspectus: Albus ad flavescens pulveris
oxydatum znic Content: 88-93%
Metallis gravis Pb2+ (%): Max 0.001.
Aeris ut Cu2+ (%): 0.0005 Max.
Manganese sicut Mn2+ (%): 0.001 Max.
Density（g/mm3）：4.6
Imprimis superficiei (m2/g) ：40

Aspectus: Albus ad flavescens pulveris
oxydi Znic Content: min 90%
metalli gravis Pb2+ (%): 0.001 Max.
Aeris ut Cu2+ (%): 0.0005 Max.
Manganese sicut Mn2+ (%): 0.001 Max.
Density（g/mm3）：3.6
Imprimis superficiei (m2/g) ：40

Aspectus: Albus ad flavescens pulveris
oxydi Znic Content: min 40%
Metallum grave Pb2+ (%): 0.02 Max.
Aeris ut Cu2+ (%): 0.001 Max.
Manganese sicut Mn2+ (%): 0.001 Max.

Aspectus: Alba ad lucem lutea pulveris
Znic oxydatum Content: min 25%
Active oxydatum Znic Content：min.25%

Aspectus: lux lutea pulveris
Znic oxydi Content: min 25%
Active oxydatum Znic Content：min.25%