Zinc oxide , AR,99% , 1314-13-2
Synonym(s):
NanoSunguard in butyl acetate;Zinc oxide;ZN526010
CAS NO.：1314-13-2
Empirical Formula: OZn
Molecular Weight: 81.39
MDL number: MFCD00011300
EINECS: 215-222-5
| Pack Size | Price | Stock | Quantity |
| 500G | RMB79.20 | In Stock |
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| 2.5kg | RMB319.20 | In Stock |
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| 12×500g | RMB639.20 | In Stock |
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| 20×500g | RMB1039.20 | In Stock |
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| others | Enquire |
PRODUCT Properties
| Melting point: | 1975 °C |
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| Boiling point: | 1949.9°C (estimate) |
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| Density | 5.6 |
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| refractive index | 2.008~2.029 |
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| Flash point: | 27℃ |
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| storage temp. | Store at +5°C to +30°C. |
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| solubility | 0.0016g/l insoluble |
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| form | nanopowder |
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| color | White to pale yellow |
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| Specific Gravity | 5.61 |
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| PH | 7 (50g/l, H2O, 20℃)(slurry) |
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| Odor | wh. to gray powd. or crystals, odorless, bitter taste |
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| Water Solubility | 1.6 mg/L (29 ºC) |
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| Crystal Structure | ZnO type |
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| crystal system | Six sides |
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| Merck | 14,10147 |
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| Space group | P63mc |
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| Lattice constant |
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| Dielectric constant | 40.0（20℃） |
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| Exposure limits | ACGIH: TWA 2 mg/m3; STEL 10 mg/m3 OSHA: TWA 5 mg/m3; TWA 15 mg/m3 NIOSH: IDLH 500 mg/m3; TWA 5 mg/m3; STEL 10 mg/m3; Ceiling 15 mg/m3 |
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| Stability: | Stable. Incompatible with magnesium, strong acids. |
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| InChIKey | XLOMVQKBTHCTTD-UHFFFAOYSA-N |
Description and Uses
Zinc oxide, ZnO, is a reactive white pigment prepared by vaporizing
metallic zinc at a temperature of about 900°C in the presence of oxygen.
As a pigment, ZnO is basic in nature and can react with certain types
of acidic paint resins resulting in the formation of a brittle film on
drying. Formation of such films leads to premature failure of paint. For
this reason as well as because of its low RI,ZnO cannot compete
for the hiding power of TiO2.
Consequently, ZnO is rarely used as the
sole pigment in modern coatings, although it finds some use in admixture
with other pigments. ZnO is used in exterior house paints as a
fungicide and in some can linings as a sulfide scavenger.
Safety
| Symbol(GHS) |  GHS09 |
| Symbol(GHS) |   GHS02,GHS07,GHS09 |
| Signal word | Warning |
| Signal word | Danger |
| Hazard statements | H225-H319-H410 |
| Hazard statements | H410 |
| Precautionary statements | P273-P391-P501 |
| Precautionary statements | P210-P233-P240-P241-P273-P305+P351+P338 |
| Hazard Codes | N,Xn,F |
| Risk Statements | 50/53-20-43-36/38-20/21/22-67-66-10-11 |
| Safety Statements | 60-61-7/9-36/37-26-16 |
| RIDADR | UN 3077 9/PG 3 |
| OEB | B |
| OEL | TWA: 5 mg/m3, Ceiling: 15 mg/m3 |
| WGK Germany | 2 |
| RTECS | ZH4810000 |
| TSCA | Yes |
| HazardClass | 9 |
| PackingGroup | III |
| HS Code | 28170000 |
| Toxicity | LD50 orally in Rabbit: > 5000 mg/kg |
| IDLA | 500 mg/m3 |
