Hidrogen sulfida: Perbedaan antara revisi
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Baris 1:
{{Chembox
|Verifiedfields = changed
|Watchedfields = changed
|verifiedrevid = 477313464
|ImageFile1 = Hydrogen-sulfide-2D-dimensions.svg
|ImageFile1_Ref = {{chemboximage|correct|??}}
|ImageSize1 = 170px
|ImageName1 = Skeletal formula of hydrogen sulfide with two dimensions
|ImageFileL1 = Hydrogen-sulfide-3D-balls.png
|ImageNameL1 = Ball-and-stick model of hydrogen sulfide
|ImageFileR1 = Hydrogen-sulfide-3D-vdW.svg
|ImageFileR1_Ref = {{chemboximage|correct|??}}
|ImageNameR1 = Spacefill model of hydrogen sulfide
|SystematicName = Hidrogen sulfida<ref>{{cite web|title = Hydrogen Sulfide - PubChem Public Chemical Database|url = http://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=402&loc=ec_rcs|work = The PubChem Project|location = USA|publisher = National Center for Biotechnology Information}}</ref>
|OtherNames = Dihidrogen monosulfida<br />
Dihidrogen sulfida<br />
Sewer gas<br />
Stink damp<br />
Sulfane<br />
Sulfurated hydrogen<br />
Sulfureted hydrogen<br />
Sulfuretted hydrogen<br />
Sulfur hydride<br />
Hydrosulfuric acid<br />
Hydrothionic acid
|Section1={{Chembox Identifiers
|CASNo = 7783-06-4
|CASNo_Ref = {{cascite|correct|CAS}}
|PubChem = 402
|ChemSpiderID = 391
|ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
|UNII = YY9FVM7NSN
|UNII_Ref = {{fdacite|correct|FDA}}
|EINECS = 231-977-3
|UNNumber = 1053
|KEGG = C00283
|KEGG_Ref = {{keggcite|correct|kegg}}
|MeSHName = Hydrogen+sulfide
|ChEBI_Ref = {{ebicite|correct|EBI}}
|ChEBI = 16136
|ChEMBL = 1200739
|ChEMBL_Ref = {{ebicite|changed|EBI}}
|RTECS = MX1225000
|Beilstein = 3535004
|Gmelin = 303
|3DMet = B01206
|SMILES = S
|StdInChI = 1S/H2S/h1H2
|StdInChI_Ref = {{stdinchicite|correct|chemspider}}
|InChI = 1/H2S/h1H2
|StdInChIKey = RWSOTUBLDIXVET-UHFFFAOYSA-N
|StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
|InChIKey = RWSOTUBLDIXVET-UHFFFAOYAJ
}}
|Section2={{Chembox Properties
|H=2|S=1
|Appearance = Gas tak berwarna
|Odor = telur busuk
|Density = 1.363 g dm<sup>−3</sup>
|MeltingPt = -82 °C
|BoilingPt = -60 °C
|Solubility = 4 g dm<sup>−3</sup> (pada 20 °C)
|VaporPressure = 1740 kPa (pada 21 °C)
|pKa = 7.0<ref>Perrin, D.D., ''Ionisation Constants of Inorganic Acids and Bases in Aqueous Solution'', 2nd Ed., Pergamon Press: Oxford, '''1982'''.</ref><ref>Bruckenstein, S.; Kolthoff, I.M., in Kolthoff, I.M.; Elving, P.J. ''Treatise on Analytical Chemistry'', Vol. 1, pt. 1; Wiley, NY, '''1959''', pp. 432-433.</ref>
|pKb = 6.95
|RefractIndex = 1.000644 (0 °C)<ref>Pradyot Patnaik. ''Handbook of Inorganic Chemicals''. McGraw-Hill, 2002, ISBN 0-07-049439-8</ref>
}}
|Section3={{Chembox Structure
|MolShape = Bent
|Dipole = 0.97 D
|PointGroup = C<sub>2v</sub>
}}
|Section4={{Chembox Thermochemistry
|DeltaHf = −21 kJ·mol<sup>−1</sup><ref name=b1>{{cite book|author = Zumdahl, Steven S.|title =Chemical Principles 6th Ed.|url = https://archive.org/details/chemicalprincipl0000zumd_u9g0|publisher = Houghton Mifflin Company|year = 2009|isbn = 0-618-94690-X|page=A23}}</ref>
|Entropy = 206 J·mol<sup>−1</sup>·K<sup>−1</sup><ref name=b1/>
|HeatCapacity = 1.003 J K<sup>−1</sup> g<sup>−1</sup>
}}
|Section5={{Chembox Hazards
|MSDS = External MSDS<ref>{{Cite web |url=http://msds.chem.ox.ac.uk/HY/hydrogen_sulfide.html |title=Salinan arsip |access-date=2015-09-25 |archive-date=2011-11-17 |archive-url=https://web.archive.org/web/20111117000000/http://msds.chem.ox.ac.uk/HY/hydrogen_sulfide.html |dead-url=yes }}</ref>
|EUClass = {{Hazchem F+}} {{Hazchem T+}} {{Hazchem N}}
|RPhrases = {{R12}}, {{R26}}, {{R50}}
|SPhrases = {{S1/2}}, {{S9}}, {{S16}}, {{S36}}, {{S38}}, {{S45}}, {{S61}}
|NFPA-H = 4
|NFPA-F = 4
|NFPA-R = 0
|AutoignitionPtC = 232
|FlashPtC = -82.4
|FlashPt_notes = <ref>{{cite web|url=http://www.npi.gov.au/substances/hydrogen-sulfide/index.html|title=Hydrogen sulfide|work=npi.gov.au}}</ref>
|ExploLimits = 4.3–46%
|IDLH = 100 ppm<ref name=PGCH>{{PGCH|0337}}</ref>
|REL = C 10 ppm (15 mg/m<sup>3</sup>) [10-minute]<ref name=PGCH/>
|PEL = C 20 ppm; 50 ppm [10-minute maximum peak]<ref name=PGCH/>
|LC50 = 713 ppm (tikus, 1 jam)<br/>673 ppm (mencit, 1 jam)<br/>634 ppm (mencit, 1 jam)<br/>444 ppm (tikus, 4 jam)<ref name=IDLH>{{IDLH|7783064|Hydrogen sulfide}}</ref>
|LCLo = 600 ppm (manusia, 30 menit)<br/>800 ppm (manusia, 5 menit)<ref name=IDLH/>
}}
|Section6={{Chembox Related
|OtherFunction_label = hydrogen chalcogenides
|OtherFunction = [[water (molecule)|Water]]<br />[[Hydrogen selenide]]<br />[[Hydrogen telluride]]<br />[[Hydrogen polonide]]<br />[[Hydrogen disulfide]]<br/>[[Sulfanyl]]
|OtherCompounds = [[Phosphine]]
}}
}}
'''Hidrogen sulfida''', H<sub>2</sub>S, adalah [[gas]] yang tidak berwarna, beracun, mudah terbakar dan berbau seperti telur busuk. Gas ini dapat timbul dari aktivitas biologis ketika [[bakteri]] mengurai bahan organik dalam keadaan tanpa [[oksigen]] ([[aktivitas anaerobik]]), seperti di [[rawa]], dan saluran pembuangan kotoran. Gas ini juga muncul pada gas yang timbul dari aktivitas [[gunung berapi]] dan [[gas alam]].
Baris 5 ⟶ 106:
== Kimiawi ==
Hidrogen sulfida merupakan [[hidrida]] [[kovalen]] yang secara kimiawi terkait dengan [[air]] (H<sub>2</sub>O) karena [[oksigen]] dan [[belerang|sulfur]] berada dalam golongan yang sama di [[tabel periodik]].
Hidrogen sulfida merupakan [[asam lemah]], terpisah dalam larutan ''aqueous'' (mengandung air) menjadi [[kation]] hidrogen H<sup>+</sup> dan [[anion]] hidrosulfid HS<sup>−</sup>:
Baris 11 ⟶ 112:
:::[[Konstanta disosiasi asam|''K''<sub>a</sub>]] = 1.3×10<sup>−7</sup> mol/L; p''K''<sub>a</sub> = 6.89.
Ion [[sulfid]], S<sup>2−</sup>, dikenal dalam bentuk padatan tetapi tidak di dalam larutan ''aqueous'' ([[oksida]]). [[Konstanta disosiasi asam|Konstanta disosiasi]] kedua dari hidrogen sulfida sering dinyatakan sekitar 10<sup>−13</sup>, tetapi sekarang disadari bahwa angka ini merupakan ''error'' yang disebabkan oleh [[oksidasi]] sulfur dalam larutan alkalin. Estimasi terakhir terbaik untuk p''K''<sub>a2</sub> adalah 19±2.<ref>Giggenbach, W. (1971). ''Inorg. Chem.'' 10:1333. Meyer, B.; Ward, K.; Koshlap, K.; & Peter, L. (1983). ''Inorg. Chem.'' 22:2345. Myers, R. J. (1986). ''J. Chem. Educ.'' 63:687.</ref>
Gas Hydrogen Sulfide (H2S) sangat beracun dan mematikan, para pekerja pada pemboran minyak dan gas bumi mempunyai risiko besar atas keluarnya gas H2S
Pengetahuan Umum tentang (H2S)
Hidrogen Sulfida (H2S) Adalah gas yang sangat beracun dan dapat melumpuhkan system pernapasan serta dapat dapat mematikan dalam beberapa menit. dalam jumlah sedikitpun gas H2S sangat berbahaya untuk kesehatan.
Hidrogen Sulfida terbentuk dari proses penguraian bahan-bahan organis oleh bakteri.Maka dari itu H2S terdapat dalam minyak dan gas bumi, selokan, air yang tergenang. Misalnya rawa-rawa dan juga terbentuk pada proses-proses industri maupun proses biologi lain
Kateristik H2S
* Sangat beracun dan mematikan
* Tidak Berwarna
* Lebih Berat Dari udara sehingga cenderung berkumpul dan diam pada daerah yang rendah
* Dapat terbakar dengan nyala api berwarna biru dan hasil pembakarannya gas sulfur Dioksida (SO2)yang juga merupakan gas beracun
* Sangat Korosif mengakibatkan berkarat pada logam tertentu
* Pada konsentrasi yang rendah berbau seperti telur busuk dan dapat melumpuhkan indra penciuman manusia
== Pranala luar ==
Baris 18 ⟶ 131:
* {{en}} [http://www.ilo.org/public/english/protection/safework/cis/products/icsc/dtasht/_icsc01/icsc0165.htm International Chemical Safety Card 0165]
* {{en}}[http://www.inchem.org/documents/cicads/cicads/cicad53.htm Concise International Chemical Assessment Document 53]
* {{en}}[http://www.npi.gov.au/database/substance-info/profiles/49.html National Pollutant Inventory - Hydrogen sulfide fact sheet] {{Webarchive|url=https://web.archive.org/web/20060309114102/http://www.npi.gov.au/database/substance-info/profiles/49.html |date=2006-03-09 }}
* {{en}}[http://www.cdc.gov/niosh/npg/npgd0337.html NIOSH Pocket Guide to Chemical Hazards]
* {{en}}[http://ptcl.chem.ox.ac.uk/MSDS/HY/hydrogen_sulfide.html MSDS safety data sheet] {{Webarchive|url=https://web.archive.org/web/20070515184930/http://ptcl.chem.ox.ac.uk/MSDS/HY/hydrogen_sulfide.html |date=2007-05-15 }}
* {{en}}[http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=15329822&query_hl=7 Abstract of survey article on H<sub>2</sub>S as used by the body, by P. Kamoun]
* {{en}}[http://www.compchemwiki.org/index.php?title=Hydrogen_sulfide Computational Chemistry Wiki] {{Webarchive|url=https://web.archive.org/web/20081207171354/http://www.compchemwiki.org/index.php?title=Hydrogen_sulfide |date=2008-12-07 }}
* {{en}}[http://www.nace.org/ NACE (National Association of Corrosion Engineers)] {{Webarchive|url=https://web.archive.org/web/20100619154509/http://nace.org/content.cfm?parentid=1020¤tID=1132 |date=2010-06-19 }}
== Referensi ==
{{reflist}}
{{Senyawa belerang}}
{{Senyawa hidrogen}}
{{Sulfida}}
{{Authority control}}
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