Natriyum bènzowat
Natriyum bènzowat iku rumusé Na C 7 H 5 O 2 . Digunakaké minangka pengawet pangan kanthi nomer E E211 . Iku pepanthan uyah Natrium saka asam benzoat sing katon metu nalika larut ing banyu. Kang bsa diprodhuksi kanthi cara reaksi sodium hydroxide kanthi asam benzoat . Asam benzoat ana ing jumlah cilik ing kranberi, prunes, kayu manis, cengkèh, lan apel .
102x102px|Rumus skeleton natrium benzoat | |
200x200px|Bubuk natrium benzoat | |
Nama | |
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Nama IUPAC
Natrium benzoat
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Nama lain
E211, soda benzoat
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Penanda | |
Model 3D (JSmol)
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ChEMBL | |
ChemSpider | |
ECHA InfoCard | 100.007.760 |
Nomor E | E211 (pengawet) |
PubChem <abbr title="<nowiki>Compound ID</nowiki>">CID
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Nomor RTECS | DH6650000 |
UNII |
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Sifat | |
C7H5NaO2 | |
Massa molar | 144,10 g·mol−1 |
Penampilan | Bubuk putih/ kristal bening |
Bau | Tanpa bau |
Densitas | 1.497 g/cm3 |
Titik lebur | 410 °C (770 °F) |
62.7 g/100 mL (0 °C) 62.78 g/100 mL (15 °C) 62.6 g/100 mL (30 °C) 71.11 g/100 mL (100 °C)[1] | |
Kelarutan | Larut dalam ammonia cair, piridin[1] |
Kelarutan dalam metanol | 8.22 g/100 g (15 °C) 7.55 g/100 g (66.2 °C)[1] |
Kelarutan dalam etanol | 2.3 g/100 g (25 °C) 8.3 g/100 g (78 °C)[1] |
Kelarutan dalam 1,4-Dioksana | 818 μg/kg (25 °C)[1] |
Bahaya | |
Piktogram GHS | 50x50px|The exclamation-mark pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS)[2] |
Keterangan bahaya GHS | Warning |
H319[2] | |
P305+351+338[2] | |
Titik nyala | 100 °C (212 °F; 373 K) |
Dosis atau konsentrasi letal (LD, LC): | |
LD50 (dosis median)
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4100 mg/kg (oral, rat) |
Kecuali dinyatakan lain, data di atas berlaku pada temperatur dan tekanan standar (25 °C [77 °F], 100 kPa). | |
pra=|al=Ya|12x12px verifikasi (apa ini pra=|al=Ya|7x7pxpra=|al=|8x8px ?) | |
Sangkalan dan referensi | |
Piguna
besutPengawet pangan
besutNatrium benzoat bisa nahan bakteri lan jamur ing kahanan asam. Digunakaké ing panganan ngandhut asam kaya ta ombenan karbonasi, jus, selé woh, lan sapituruté Uga digunakaké minangka tambahan obat lan kosmetik .[3][4]
Farmasi
besutNatrium benzoat digunakaké minangka perawatan kanggo gangguan siklus urea.[5][6]
Liyané
besutUga dipigunakaké ana ing kembang api minangka bubuk bahan bakar sing bisa dijupuk sèmbar nalika dimampetaké ing jero tabung lan diobong.
Mekanisme pengawetan pangan
besutDiwiwiti kanthi nyerep asam benzoat menyang jero sel. Menawa pH intraselular mudhun ana nandhang <5, fermentasi anaerobik saka glukosa liwat phosphofruktokinase kurang banget [7] saengga bisa nyegah tambahing lan kalangsungan mikro-organisme kang bisa ngrusak pangan.
Produksi
besutDiprodhuksi dening netralisasi asam benzoat kanthi natrium hidroksida.[8] Natrium Benzoat uga bisa digawé kanthi nambah asam benzoat menyang larutan natrium karbonat sing konsentrasi kenthel panas nganti unthuké ilang. Larutan banjur nguap, ngadhem, lan ngristal nganti garing, banjur dibentuk bubuk.
Kasarasan
besutSodium benzoate aman kanggo konsumsi.
Kucing kurang trep karo asam benzoat lan uyah-uyahé tinimbang tikus .[9]
Rujukan
besut- ↑ a b c d e "Archive copy". Diarsip saka sing asli ing 2014-05-24. Dibukak ing 2019-05-21.
{{cite web}}
: CS1 maint: archived copy as title (link) - ↑ a b c Sigma-Aldrich Co., Sodium benzoate. Retrieved on 2014-05-23.
- ↑ "Skin Deep® Cosmetics Database | Environmental Working Group". Cosmeticsdatabase.com. Dibukak ing 2013-01-14.[pranala mati permanèn]
- ↑ "Sodium benzoate in Robitussin cough". Rxmed.com. Dibukak ing 2013-01-14.
- ↑ Häberle, J; Boddaert, N; Burlina, A; Chakrapani, A; Dixon, M; Huemer, M; Karall, D; Martinelli, D; Crespo, PS (2012). "Suggested guidelines for the diagnosis and management of urea cycle disorders". Orphanet journal of rare diseases. 7: 32. doi:10.1186/1750-1172-7-32. PMC 3488504. PMID 22642880.
- ↑ Wilcken, B (2004). "Problems in the management of urea cycle disorders". Molecular genetics and metabolism. 81 Suppl 1: S86–91. doi:10.1016/j.ymgme.2003.10.016. PMID 15050980.
- ↑ Krebs HA, Wiggins D, Stubbs M, Sols A, Bedoya F (September 1983). "Studies on the mechanism of the antifungal action of benzoate". Biochem. J. 214 (3): 657–63. PMC 1152300. PMID 6226283.
{{cite journal}}
: CS1 maint: multiple names: authors list (link) - ↑ "International Programme On Chemical Safety". Inchem.org. Dibukak ing 2013-01-14.
- ↑ Bedford PG, Clarke EG (January 1972). "Experimental benzoic acid poisoning in the cat". Vet. Rec. 90 (3): 53–8. doi:10.1136/vr.90.3.53. PMID 4672555.
Pranala njaba
besut- Data safety kanggo sodium benzoate Archived 2011-12-11 at the Wayback Machine. (UK)
- Beware of Preservatives in Food, Here Is One of them at Republika.co.id
- Sodium Benzoate & Kalium Sorbate Aman Dipakan ing Detik Berita