Silicon dioxide Cas: 7631-86-9
| Nọmba katalọgụ | XD92013 |
| Aha ngwaahịa | Silicon dioxide |
| CAS | 7631-86-9 |
| Ụdị molekụlala | O2Si |
| Ibu molekụla | 60.08 |
| Nkọwa nchekwa | 2-8 Celsius C |
| Koodu tarifu akwadoro | 3802900090 |
Nkọwapụta ngwaahịa
| Ọdịdị | Ọcha ntụ ntụ |
| Asay | 99% nkeji |
| Ebe mgbaze | 1600C (ọkụ) |
| Ebe esi nri | >100C (ọkụ) |
| njupụta | 2.2-2.6 g/mL na 25 Celsius C |
| index refractive | 1.46 |
| Fp | 2230C |
| solubility | Ọ bụ ezie na a naghị edozi ya na mmiri yana na mineral acid ma e wezụga hydrofluoric acid.Ọ dissolves na-ekpo ọkụ ngwọta nke alkali hydroxides. |
| Nnukwu ike ndọda | 2.2 |
| Nnukwu ike ndọda | 0.97 |
| Nnukwu ike ndọda | 1.29 |
| PH | 5-8 (100g/l, H2O, 20℃) (slurry) |
| Mmiri Solubility | apụghị sosolument |
| Mmetụta | Hygroscopic |
A na-akpọkwa silica dị ka silicone dioxide.Silica nwere ngwa dị iche iche: iji chịkwaa viscosity ngwaahịa, gbakwunye nnukwu, ma belata nghọta nke usoro.Ọ nwekwara ike ịrụ ọrụ dị ka abrasive.Na mgbakwunye, ọ nwere ike rụọ ọrụ dị ka onye na-ebu ihe na-ekpo ọkụ, ma enwere ike iji ya mee ka mmetụta akpụkpọ ahụ dịkwuo mma.Silica Spherical na-agbaji ma na-amịkọrọ ya nke ukwuu, yana ikike nnabata ihe ruru okpukpu 1.5 ibu ya.Ihe a na-ekwukarị na silica bụ njikwa mmanụ.A na-ahụ ya na mkpuchi anwụ, ihe nchacha, na ọtụtụ nlekọta anụ ahụ ndị ọzọ, etemeete, na nkwadebe nlekọta ntutu.Ejirila ya nke ọma na usoro hypoallergenic na nke a nwalere ihe nfụkasị ahụ.
A na-enweta Silica (SiO2) (RI: 1.48) site na nkwụnye ego nke nzu dị nro dị ka nkume (keiselghur).Nke a bụ otu ihe dị mkpa nke pigmenti extender, nke a na-eji n'ụdị dị iche iche.A na-eji ha dị ka ihe na-adaba adaba iji belata gloss nke mkpuchi doro anya na inye ihe ndị na-agbapụta nke shear thinning na mkpuchi.Ha dị oke ọnụ.
Silicon (IV) oxide, amorphous na-eji dị ka ndị na-ebu, nhazi ihe enyemaka, mgbochi-caking na free-flow agents na anụmanụ nri.Ngwa defoamer dị ka agba, nri, akwụkwọ, textile na ngwa ụlọ ọrụ ndị ọzọ.A na-eji silicon dioxide sịntetik mee ihe dị ka onye na-ahụ maka njikwa rheology na plastik.A na-ejikwa ya emepụta ihe nrapado, ihe mkpuchi na silicones.
Imepụta iko, iko mmiri, refractories, abrasives, ceramics, enamels;decolor na-eme ka mmanụ dị ọcha, ngwaahịa mmanụ ala, wdg;na nchikota-na-egweri-ngwakọta, ferrosilicon, ebu maka nkedo;dị ka anticaking na defoaming gị n'ụlọnga.
