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Natriumthiosulfat Produkt Beschreibung

CAS-Nr.7772-98-7
Bezeichnung:Natriumthiosulfat
Englisch Name:Sodium thiosulfate
Synonyma:Natriumthiosulfat;Dinatriumthiosulfat
Natriumhyposulfit
HYPO;'HYPO';Detoxol;s-hydril;Hyporice;BETZ 0235;ANTICHLOR;declor-it;sodothiol;Thiosulfate
CBNumber:CB4232650
Summenformel:Na2O3S2
Molgewicht:158.11
MOL-Datei:7772-98-7.mol
Natriumthiosulfat physikalisch-chemischer Eigenschaften
Schmelzpunkt:: 48°C
Siedepunkt:: 100°C
Dichte: 1.01 g/mL at 25 °C
storage temp. : 2-8°C
Löslichkeit: Immiscible with alcohol.
Aggregatzustand: Solid
Wichte: 1.667
Farbe: White
PH: 6.0-8.5 (25℃, 50mg/mL in H2O)
Wasserlöslichkeit: Soluble in water. Insoluble in alcohol.
Sensitive : Hygroscopic
Merck : 14,8694
Stabilität:: Stable. Incompatible with strong acids, strong oxidizing agents, iodine, mercury.
CAS Datenbank: 7772-98-7(CAS DataBase Reference)
EPA chemische Informationen: Thiosulfuric acid (H2S2O3), disodium salt(7772-98-7)
Sicherheit
Kennzeichnung gefährlicher: Xi
R-Sätze:: 36/37/38
S-Sätze:: 24/25-23-36-26
WGK Germany : 1
RTECS-Nr.: XN6476000
F : 3
TSCA : Yes
HS Code : 28323000
Giftige Stoffe Daten: 7772-98-7(Hazardous Substances Data)
Toxizität: LD50 orally in Rabbit: > 5000 mg/kg

Natriumthiosulfat Chemische Eigenschaften,Einsatz,Produktion Methoden

Chemische Eigenschaften
Sodium thiosulfate, Na2S203·5H20, also known as sodium hyposulfite, hypo,andsodium subsulfite, is a white crystalline solid that has a melting point of 48 °C(118 °F). Water soluble,it is used as a fixing agent for photographic films, plates, and papers. Sodium thiosulfate is used in medicine, as a germicide, in manufacturing leather, as a mordant in dyeing, and for extracting silver from ore.
Verwenden
Sodium thiosulfate is a common analytical reagent used in iodometric titration to analyze chlorine, bromine, and sulfide. Other uses are in bleaching paper pulp, bleaching straw, ivory, and bones, for removing chlorine from solutions, silver extraction from its ores, a mordant in dyeing and printing textiles, and as an antidote to cyanide poisoning.
Another major application is in photography, where it is used as a fixer to dissolve unchanged silver salts from exposed negatives.
Sodium Thiosulfate is used primarily as a medicament against cyanide poisoning, able to convert cyanide into thiocyanate, a reaction which is catalyzed by the enzyme Rhodanese. Antioxidant.
Verwenden
Sodium Thiosulfate is a sequestrant, antioxidant, and formulation aid that is a powder soluble in water. it can be used in alcoholic bev- erages at 5 ppm and in table salt at 0.1%. it is also termed sodium hyposulfite.
Verwenden
Sodium thiosulfate (thiosulfate) Known simply as “hypo,” an abbreviated form of the incorrect form hyposulfite, this white crystal was made by boiling calcium thiosulfate with sodium sulfate. It is soluble in water and oil of turpentine but not in alcohol. The property of sodium thiosulfate to dissolve silver halides was discovered in 1819 by Sir John Herschel and was probably first used to fix photographic images by L. J. M. Daguerre. After Daguerre published its use in his 1839 manual W. H. F. Talbot finally used it to fix calotype negatives and silver chloride prints, although he continued to stabilize them with potassium iodide and sodium chloride presumably for the variety of colors possible. Sodium thiosulfate was the primary fixing agent throughout the 19th century and is still used today.
Definition
ChEBI: An inorganic sodium salt composed of sodium and thiosulfate ions in a 2:1 ratio.
Trademarks
Sulfactol (Sterling Winthrop).
ERSCHEINUNGSBILD
FARBLOSE KRISTALLE
CHEMISCHE GEFAHREN
Zersetzung beim Erhitzen unter Bildung giftiger Rauche mit Schwefeloxiden. Reagiert heftig mit starken Oxidationsmitteln.
ARBEITSPLATZGRENZWERTE
TLV nicht festgelegt (ACGIH 2005).
MAK nicht festgelegt (DFG 2006).
INHALATIONSGEFAHREN
Eine belästigende Partikelkonzentration in der Luft kann schnell erreicht werden.
LECKAGE
Persönliche Schutzausrüstung: Atemschutzgerät, P1-Filter für inerte Partikel. Verschüttetes Material in Behältern sammeln.
R-Sätze Betriebsanweisung:
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
S-Sätze Betriebsanweisung:
S24/25:Berührung mit den Augen und der Haut vermeiden.
S23:Gas/Rauch/Dampf/Aerosol nicht einatmen(geeignete Bezeichnung(en) vom Hersteller anzugeben).
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
Hazard
Use in foods restricted to 0.1%.
Sicherheitsprofil
Moderately toxic by subcutaneous route. Incompatible with metal nitrates, sodium nitrite. When heated to decomposition it emits very toxic fumes of Na2O and SOx. See also SODIUM THIOSULFATE and SODIUM THIOSULFATE, PENTAHYDRATE.
läuterung methode
Crystallise it from EtOH/H2O solutions or from water (0.3mL/g) below 60o by cooling to 0o, and dry it at 35o over P2O5 under vacuum. [Foerster & Mommsen Chem Ber 57 258 1924.] This salt is used as a secondary standard in volumetric analysis [Kilpatrick J Am Chem Soc 45 2132 1923], and is used as “Hypo” in photography [Hargreaves & Dunningham J Soc Chem Ind 42 147T 1923.]
Natriumthiosulfat Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Schwefel Dinatriumsulfid Natriumsulfit Schwefeldioxid Phenol, 2,4-Dinitro-, sulfuriert Kaliumnatriumtartrat Vanadiumpentoxid Hydrogenchlorid Natriumhydroxid Bariumsulfid Holzkohle, aktiviert Schwefelsure Natriumcarbonat
Downstream Produkte
4-Fluorthiophenol Iodcyclohexan Tricyclo[3.3.1.13,7]decan-1-ol Dimethylbrommalonat 1,3-Dibrompropan-2-ol 2-Chlor-1-iod-4-nitrobenzol 1-Iodnaphthalin S-Allylacrylo-1-sulfinothioat Tribrommethan 3-Iodpyridin
Natriumthiosulfat Anbieter Lieferant Produzent Hersteller Vertrieb Händler.      Global( 207)Lieferanten     
Firmenname Telefon Fax E-Mail Land Produktkatalog Edge Rate
Shenzhen Sendi Biotechnology Co.Ltd.
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Henan DaKen Chemical CO.,LTD.
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Mainchem Co., Ltd.
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Hubei Jusheng Technology Co.,Ltd.
86-155-27864001
peter@hubeijusheng.com CHINA 18004 58
Haihang Industry Co.,Ltd
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+86 531 8582 1093export@haihangchem.com CHINA 4530 58
Chemwill Asia Co.,Ltd.
86-21-51086038
86-21-51861608chemwill_asia@126.com;sales@chemwill.com;chemwill@hotmail.com;chemwill@gmail.com CHINA 10967 58
career henan chemical co
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sales@coreychem.com CHINA 19990 58
Sino Chem Mongolia Alliance Ltd. +86-131-10056998
+86-022-23686656sinongolia-chem@163.com China 10 60
Shanghai XiZhi Chemical Co., Ltd. 021-69005855
021-69005955xizhichem@163.com China 4254 55
 
7772-98-7(Natriumthiosulfat)Verwandte Suche:
Natriumsulfat ETHYLENEDIAMINE TETRAKIS(PROPOXYLATE-BLOCK-ETHOXYLATE) TETROL Natriumchlorid Natriumhydroxid sodium Natriumhydrogencarbonat Natriumformiat Natriumacetat Pralmorelin 5-Chlorvaleriansaeure 4-(Diethylamino)salicylaldehyd 4,4-Bis(4-hydroxyphenyl)valeriansure Natriumbenzoat Natriumthiosulfat Natriumgluconat 3,4-Dihydro-2,5,7,8-tetramethyl-2-(4,8,12-trimethyltridecyl)-2H-benzopyran-6-ol Trinatriumcitrat Sodium thiosulfate pentahydrate
Sodium thiosulfate 、Sodium thiosulfate pentahydrate SODIUM THIOSFAT 0.025N VOL SOL sodium thosulfate, anhydrous Sodium thiosulfate, 98.5%, anhydrous, extra pure Sodium Thiosulfate [for General Organic Chemistry] Detoxol Thiosulfuric acid sodium Sodium thiosulfate,98.5%,extra pure,anhydrous Sodium thiosulfate,pure,0.1 N standard solution SodiuM Thiosulfate (AS) SodiuM Thiosulfate, 0.1 N Standard Solution SodiuM thiosulfate, anhydrous, extra pure, 98.5% 1KG SodiuM thiosulfate, anhydrous, extra pure, 98.5% 2.5KG SodiuM thiosulfate, anhydrous, extra pure, 98.5% 500GR 0.2mol/l-Sodium Thiosulfate Solution 1mol/l-Sodium Thiosulfate Solution Sodium Thiosulfate, 1N Volumetric Solution Sodium Thiosulfate, 0.025 Normal (N/40) Volumetric Solution Sodium Thiosulfate, 0.20 Normal (N/5) Volumetric Solution Sodium Thiosulfate, DILUT-IT? Analytical Concentrate, 0.1N, 1/10 equiv. = 15.81g Na Sodium Hyposulfite Anhydrous Standard solution for the determination of thiosulfate Analytical Volumetric Solution DECHLORINATING SOLUTION HYPO 'HYPO' BETZ 0235 ANTICHLOR SODIUM HYPOSULFITE SODIUM THIOSULFATE SODIUM THIOSULFATE, 2.00 N SODIUM THIOSULPHATE SODIUN THIOSULFATE SULFITE STANDARD chlorinecontrol SODIUMTHIOSULFATE,ANHYDROUS,REAGENT SODIUMTHIOSULFATE,ANHYDROUS,TECHNICAL SODIUMTHIOSULFATE,TECHNICAL(BULK Thiosulfate Sodium Thiosulfat Sodium subsulfite SODIUMTHIOSULFATEFORINJECTION Sodium thiosulfate, 0.1N Standardized Solution Sodium thiosulfate, 0.01N Standardized Solution Sodium thiosulfate, Acculute Standard Volumetric Solution, Final Concentration 0.1N Sodium thiosulfate, 1.0N Standardized Solution Sodium Thiosulfate, 0.1N Volumetric Solution Sodium Thiosulfate,(0.01N),Analytical Concentrate Bisultap aqueous solution Bisultap granular SODIUM THIOSULFATE ANHYDROUS 250 G SODIUM THIOSULFATE SOLUTION 4 L SODIUM THIOSULFATE ANHYDROUS 50 KG SODIUM THIOSULFATE ANHYDROUS 2,5 KG SODIUM THIOSULFATE SOLUTION 10 L SODIUM THIOSULFATE SOLUTION 1 L SODIUM ARSENITE SOLUTION C(NAASO2) SodiuM thiosulfate, 0.1 M solution in H2O
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