RUBBER GRADE ZINC OXIDE,Molecular formula: ZnO
Physical and chemical property:
White or a little yellow powder, density 5.606, fusion point: 1975.It is a kind of two characters oxide, dissolve in acid and alkaline solution, insoluble in water or ethanol. It is yellow color at the high temperature, resume being white after cooling.
Application:Rubber grade zinc oxide is used in series of products such as steel radial tyre, bias tyre, conveyer belt, rubber tube and tape, rubber shoes, emulsion glove productions etc. Its properties of product can meet country, the Ministry of Chemical Industry and American ASTM standard requirements.
Characteristic and function
1.High activity, even granularity, its possessed of high dispersing ability, has the good promotion curing function, improve the cross-link china density of rubber, enable to make the rubber vulcanization more completely.
2. It can improve the viscidity of rubber compound,and the adhesive force of materials such as the rubber, steel wire and code fabric, etc.
3. It can make good dynamic performance, make the rubber products with little deformation, low heat generation, high anti-abrasion. Enable to have good anti-oxide property.
| Charactristics | Limited | ||||||
Hxj051 | Hxj052 | Hxj053 | Hxj054 | Hxj055 | Hxj056 | Hxj057 | |
| Zinc oxide(counted by dried subtances )%≥ | 99.8 | 99.8 | 99.7 | 99.5 | 99 | 98 | 96 |
| Metal ( zn ) %≤ | no | no | no | no | 0.01 | no | no |
| Lead oxide( Pb ) %≤ | 0.003 | 0.005 | 0.037 | 0.04 | 0.15 | 0.18 | 0.3 |
| Cupric oxide( Cu ) %≤ | 0.0001 | 0.0001 | 0.0002 | 0.0004 | 0.0004 | / | / |
| Manganic oxide ( Mn) %≤ | 0.0001 | 0.0001 | 0.0001 | 0.0001 | 0.0001 | / | / |
| Hydrochloric indissoluble substance %≤ | 0.004 | 0.006 | 0.012 | 0.015 | 0.05 | 0.1 | 0.25 |
| Burning decrement %≤ | 0.12 | 0.2 | 0.2 | 0.2 | 0.2 | 0.3 | 0.5 |
| Water dissoluble %≤ | 0.01 | 0.1 | 0.1 | 0.2 | 0.2 | 0.3 | 0.3 |
| 105 volatile substances %≤ | 0.06 | 0.1 | 0.3 | 0.4 | 0.4 | 0.6 | 0.8 |
| Specific sufface area(/g%≥ | 60 | 55 | 50 | 45 | 40 | 40 | 40 |
| Sieve residue(um) | 20-40nm | 220 | 420 | 4-50 | / | / | / |
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See larger image: Sell zinc oxide for rubber
