Feldspar powder
Feldspar powder
CAS: 12003-63-3
Molecular Formula: AlKO2
Feldspar powder - Names and Identifiers
| Name | Feldspar powder |
| Synonyms | Feldspar powder aluminium potassium dioxide potassium,oxido(oxo)alumane potassium oxido(oxo)aluminum |
| CAS | 12003-63-3 |
| EINECS | 234-432-8 |
| InChI | InChI=1/Al.K.2O/q;+1;;-1/rAlO2.K/c2-1-3;/q-1;+1 |
Feldspar powder - Physico-chemical Properties
| Molecular Formula | AlKO2 |
| Molar Mass | 98.078638 |
| Density | 1.54[at 20℃] |
| Boling Point | 115℃[at 101 325 Pa] |
| Use | Used as raw material of polishing paste |
Feldspar powder - Risk and Safety
| UN IDs | 3288 |
| Hazard Class | 6.1 |
| Packing Group | III |
Feldspar powder - Nature
Open Data Verified Data
is a kind of aluminosilicate mineral, the crystal structure is a framework structure. Its main components are S102, A12Q, Kz0, Na20, ca0. The melting point of feldspar is between IIOO ~ 1300 ℃, the chemical stability is good, and it has the effect of melting when it is fused with quartz and aluminosilicate. The hardness of feldspar fluctuates between 6 and 6.5, and the relative density fluctuates between 2 and 2.5. It is brittle, has high compressive strength and strong chemical stability to acid. The main ore deposits of feldspar are pegmatite, weathered granite, fine-grained rocks (semi-weathered granite), in addition to the feldspar of the stone, potassium striite, associated with the serpentine albite, nepheline diorite and Baigang rock. There are four main components of feldspar: potassium feldspar, albite, anorthite, barium Feldspar. The main physical and chemical properties of feldspar minerals are as follows.
- potassium feldspar: K20.A12 03 · 6 si02. Composition I(2 0 9. ss%,A1203 16% or more, Si02 70%. The density was 2.56g/cm3, and the Mohs hardness was 6. Monoclinic system, the color is white, red, milky white. Melting point 1290 °c.
- albite: Na2 0-A12 03 · 6 si02. The composition was no more than 8%, K20 s>6-6%.A12 0316% or more, and SiO2 70%. Density: 2.605g/cm.
- potassium feldspar Mohs hardness is 6. Triclinic system, the color is white. Melting point 1100 °c.
- anorthite: Ca0.A12 03 · 6 Si02, wherein Ca0 20. 1%, Alz 03 36. 7%, Si02 43.2%, density 2. 77g/cm3, Mohs hardness 6. Triclinic system, the color is white, gray, red, melting point 1552 deg C.
- barium feldspar: Ba0.A12 03 · 6 Si02, including Ba0 40. 9%, A12 03 27. Triclinic system, the color is white, gray, red. Melting point 1715 °c.
Last Update：2024-01-02 23:10:35
Feldspar powder - Preparation Method
Open Data Verified Data
potassium feldspar wet decomposition process: the potassium feldspar is broken to less than 100 mesh, and the inorganic acid and the main reactant fluoride are continuously put into the stirrer, under normal pressure, when the temperature is 60 to 100 ° C., the decomposition reaction is carried out, and then the material is transferred to the separator, and the solid phase obtained by separation enters the rotary furnace, and the concentrate is obtained after roasting at the furnace temperature of 500 to 750 ° C. The gas generated in the calcination is completely absorbed by the absorption tower and then returned to the agitator for recycling, and the separated liquid phase is returned to the agitator for recycling. China is rich in potassium feldspar resources, the use of potassium feldspar potassium fertilizer, the use of sintering method, high temperature melting method, hydrothermal method, blast furnace smelting method, low temperature decomposition method.
Last Update：2022-01-01 09:07:13
Feldspar powder - Use
Open Data Verified Data
In addition to being the main raw material of glass industry and ceramic industry, feldspar mineral is also widely used in chemical industry, abrasive, glass fiber, welding electrode and other production departments. Feldspar mineral can be used as a flux in the glass industry, ceramic body ingredients and ceramic glaze, can reduce the firing temperature, is the main raw material for the production of various ceramics, enamel, porcelain blank and glaze. In the chemical industry, ground feldspar is used as a coating and filler for urethane, propylene-based substances. Powder feldspar can be used in the abrasive industry. Feldspar as a filler in paper making, refractory materials, machinery manufacturing, coating, electrode and other industrial production has been widely used.
Last Update：2022-01-01 09:07:14
Feldspar powder - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Application | used as raw material of polishing paste |
Last Update：2024-04-09 19:05:07
