Silicon dioxide
Silicon dioxide, wanda aka fi sani a Hausance da silica, wani oxide ne na silicon tare da tsarin sinadarai , wanda aka fi samunsa a cikin yanayi a matsayin Quartz.[5]A manyan sassa da yawa na duniya, silica shine babban abin da ke jikin yashi. Silica yana da yawa saboda ya ƙunshi ma'adanai da yawa da samfuran roba. Duk siffofin fari ne ko ba su da launi, duk da cewa ana iya canza samfurori marasa tsabta.
- ↑ 1.0 1.1 Haynes WM, ed. (2011). CRC Handbook of Chemistry and Physics (92nd ed.). Boca Raton, FL: CRC Press. ISBN 1-4398-5511-0.
- ↑ Cite error: Invalid
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- ↑ 3.0 3.1 NIOSH Pocket Guide to Chemical Hazards.
- ↑ 4.0 4.1 Zumdahl, Steven S. (2009).
- ↑ Fernández LD, Lara E, Mitchell EA (2015). "Checklist, diversity and distribution of testate amoebae in Chile" (PDF). European Journal of Protistology. 51 (5): 409–24. doi:10.1016/j.ejop.2015.07.001. PMID 26340665. Archived (PDF) from the original on 2022-10-10.
![]() Samfurin silicon dioxide
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Sunayen | |
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Sunan IUPAC Silicon dioxide
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Sauran sunaye
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Bayyanawa | |
Lambar CAS
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ChEBI | |
ChemSpider | |
<span title="echa.europa.eu">ECHA InfoCard</span> | 100.028.678 |
<span title="European Community number (chemical identifier)">Lambar EC</span> |
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<span title="E number (food additive code)">Lambar E</span> | E551 (masu kula da acidity, ...) |
Bayanan Gmelin
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200274 |
KEGG | |
MeSH | Silicon+dioxide |
PubChem <abbr title="<nowiki>Compound ID</nowiki>">CID
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Lambar RTECS |
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UNII | |
CompTox Dashboard (<abbr title="<nowiki>U.S. Environmental Protection Agency</nowiki>">EPA)
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InChI
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Abubuwan da ke ciki | |
Tsarin sinadarai
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SiO2 |
Ma'auni na ƙuƙwalwa | 60.08 g/mol |
Bayyanawa | Bayyanawa ko fari |
Yawan jama'a | 2.648 (α-quartz), 2.196 (amorphous) g·cm−3 [1] |
Matsayi na narkewa | 1,713 °C (3,115 °F; 1,986 K) (amorphous) [1]: 4.88 zuwa |
Matsayi na tafasa | 2,950 °C (5,340 °F; 3,220 K) [1] [1] |
Magnetic susceptibility (χ)
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-.6·10−6 cm3/mol |
Gudanar da zafi | 12 (axis c), 6.8 (axis), 1.4 (am.) W/ (m⋅K) [1]: 12.213: 12.213 |
Refractive in (nD)
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1.544 (o), 1.553 (e) [1]: 4.143: 4.143 |
Hadari | |
<b>NFPA 704</b> (lu'u-lu'u na wuta) | Page Samfuri:NFPA 704 diamond/styles.css has no content.![]() <span title="Health 0: Exposure under fire conditions would offer no hazard beyond that of ordinary combustible material. E.g. sodium chloride">0</span> <span title="Flammability 0: Will not burn. E.g. water">0</span> <span title="Instability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogen">0</span> |
<b>NIOSH</b> (ƙayyadadden bayyanar kiwon lafiya na Amurka): | |
PEL (An ba da izini)
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TWA 20 mppcf (80 mg/m3/%SiO2) (amorphous) [2] |
REL (An ba da shawarar)
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TWA 6 mg/m3 (amorphous) [2]Ca TWA 0.05 mg/m3. [3] |
IDLH (Harin ciki)
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3000 mg/m3 (amorphous) [2]Ca [25 mg/m2 (cristobalite, tridymite); 50 mg/m5 (quartz) ] [333] [3] |
Abubuwan da suka danganci | |
Dions masu alaƙa
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Carbon dioxide Dioxygen na JamusTin dioxideDioxygen gubar |
Abubuwan da suka danganci
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Silicon monoxide Silicon sulfide |
Ilimin sunadarai | |
Std molarentropy<br> (Shu 298) (S a shekara ta 298)
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42 J·mol−1−1] [4] |
Rashin bayani na Std (ΔfX298) (Δf)
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-911 kJ·mol-1 [4]<span typeof="m<sup>−1</sup>"> |
Sai dai inda aka lura ba haka ba, ana ba da bayanai don kayan aiki a cikin daidaitattun yanayi su (a 25 ° C [77 ° F], 100 kPa). ![]() ![]() ![]() Bayanan Infobox
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