La dernière modification de cette page a été faite le 21 février 2019 à 17:06. 5. H318-Causes serious eye damage. The odorless inorganic compound has many industrial and consumer uses that include chemical analysis, photography, and as a fertilizer. Compare Products: Select up to 4 products. Ammonium dithiocarbamate is formed as an intermediate in this reaction, which upon heating, decomposes to ammonium thiocyanate and hydrogen sulfide: Cependant, par chauffage, il peut s'isomériser en thiourée : Les mélanges à l'équilibre à 150 °C et 180 °C contiennent respectivement 30,3% et 25,3% (en poids) de thiourée. Le dithiocarbamate d'ammonium est formé comme intermédiaire qui, par chauffage, se décompose en thiocyanate d'ammonium et sulfure d'hydrogène: : Grâce à une réaction endothermique, une source d'eau froide non potable peut être produite et même faire geler la solution. AMMONIUM THIOCYANATE can release ammonia vapors if mixed with a chemical base or with an acid. Ammonium thiocyanate Urea Ozonolysis Thiourea dioxide 1,2-Ethanedithiol. 2 Kit Part: Y Responsible Party Name: LAB-AIDS, INC Address: 17 COLT COURT City: RONKONKOMA NY 11779 Info Phone: 516-737-1133 Emergency Phone Number: 516-737-1133 Resp. Wikipedia. These additions must be carefully timed so that all samples react for the same period of time. Violent or explosive reactions have occurred when thiocyanates are mixed with oxidizing agents (such as chlorates(potassium chlorate), nitrates, nitric acid, and peroxides). Ammonium thiocyanate is stable in air; however, upon heating it isomerizes to thiourea: Thiourea can be produced from ammonium thiocyanate, but more commonly it is produced by the reaction of hydrogen sulfide with calcium cyanamide in the presence of carbon dioxide. Use only under a chemical fume hood. NH4SCN est faiblement acide. The substance identifiers displayed in the InfoCard are the best available substance name, EC number, CAS number and/or the … When the silver nitrate is all converted into thiocyanate AgN03-fNH4CNS=AgCNS +NH4NOS, the blood-red coloration of ferric thiocyanate appears. Le thiocyanate d'ammonium peut être produit par réaction entre du disulfure de carbone avec de l'ammoniaque. It has a moderate mammalian toxicity and there is some risk of bioaccumulation. Sub. P305+P351+P338-IF IN EYES: Rinse … Il utilisé dans plusieurs domaines dont le plus important est l'agriculture. ammonium thiocyanate indicator. Ammonium Thiocyanate solution can also be used to standardize Mercuric Nitrate solutions using Ferric Alum as the indicator: 2 NH 4 SCN + Hg(NO 3) 2 → Hg(SCN) 2 (white precipitate) + 2 NH 4 NO 3. excess SCN-+ Fe 3+ → [FeSCN] 2+ (red complex at endpoint) Ammonium Thiocyanate and Potassium Thiocyanate solutions can be used interchangeably in these determinations. P280-Wear protective gloves/protective clothing/eye protection/face protection. We use cookies to help provide and enhance our service and tailor content and ads. With thiocyanate as indicator iron(III) and aluminium(III) can be titrated simultaneously if [Fe+3]/[Al+3] ⩽ 14; iron(III) is titrated directly with EDTA, and aluminium(III) is determined by back-titration of the excess of EDTA with cobalt nitrate solution in an acetone-water medium. Contributions to the complexometric determination of cation mixtures. J'accepte. By continuing you agree to the use of cookies. Language: English (United Kingdom) English (United Kingdom) 中文(中华人民共和国) News Login Login Il est utilisé comme adjuvant de teinture dans l'industrie textile, comme produit traceur en prospection pétrolière. Hygroscopic. 1molL−1 ammonium thiocyanate solution to each iron solution in sequence, with 2 minutes between each addition. Titrate with the ammonium thiocyanate solution to the first appearance of a red-brown color. Party Other MSDS No. L−1 potassium thiocyanate solution. Dans l'eau, il réagit avec l'hydroxyde de sodium ou de l'hydroxyde de potassium pour former le thiocyanate de sodium ou le thiocyanate de potassium. Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment. Serious eye damage/eye irritation Category 1; Hazard Statement. The Extractive-Spectrophotometric Determination of Iron(III) As a Mixed-Ligand Complex with N -Hydroxy- N , N ′DI- p -Tolyl- p -Toluamidine and Thiocyanate. 40 CFR 116.4; … http://www.reptox.csst.qc.ca/Produit.asp?no_produit=13466&nom=AB-5223+THIOCYANATE+D'AMMONIUM&incr=0, http://www.jtbaker.com/msds/frenchhtml/A6277.htm, http://e-phy.agriculture.gouv.fr/mata/8138.htm, http://www.ulb.ac.be/sciences/intra/inforsc_archives/nrj/olbregts1.htm, http://phemtechnologies.fr/pdf/Fiches_Techniques/FT%20-%20HER12.pdf, https://fr.wikipedia.org/w/index.php?title=Thiocyanate_d%27ammonium&oldid=156933082, Produit chimique dangereux pour l'environnement, Substance active de produit phytosanitaire, Infobox Chimie avec données obsolètes : directive 67/548/EEC, Portail:Protection des cultures/Articles liés, Portail:Agriculture et agronomie/Articles liés, licence Creative Commons attribution, partage dans les mêmes conditions, comment citer les auteurs et mentionner la licence. Un article de Wikipédia, l'encyclopédie libre. Substance identity Substance identity. Each ml of 0.1 N silver nitrate is equivalent to 0.008312 g of C 8 H 10 N 2 S. Emergency Overview Contact with acids liberates toxic gas. ammonium thiocyanate 98%min, US $ 900 - 2990 / Metric Ton, Other Inorganic Salts, 1762-95-4, Ammonium Thiocyanate.Source from Gemhold (SJZ) Trading Co., Ltd. on Alibaba.com. of ammonium thiocyanate, NH4CN8—a little ferric alum is used as indicator. Dans ce cas, on dose Fe+3 par titrage direct avec EDTA et Al+3 par titrage de l'excés de EDTA avec une solution de nitrate de cobalt en acetone—eau. Obtain … Mix the solutions by swirling. Produced from ammonia and hydrogen fluoride. نمایش یک نتیجه . Nitric acid violently oxidized a thiocyanate solution [Bretherick 1979 p. 121]. This study demonstrates the suitability of serum thiocyanate as an indicator of tobacco smoke. Copyright © 2021 Elsevier B.V. or its licensors or contributors. Copyright © 1961 Published by Elsevier B.V. https://doi.org/10.1016/0003-2670(61)80039-1. 4. Le thiocyanate d'ammonium peut être produit par réaction entre du disulfure de carbone avec de l'ammoniaque. Inorganic compound with the formula 2 [PtCl 6 ]. MSDS NAME: 19-10 IRON INDICATOR POWDER NO. Ammonium thiocyanate is an inorganic salt commonly used for thiocyanation of organic compounds. description Substance description Substance description. 4.80 Ammonium iron (III) sulfate, (NH 4 Fe(SO 4) 2.12H 2 O) 4.81 Indicator solution Prepare by adding 10 ml of nitric acid 1 + 2 (4.13) to 100 ml of a cold saturated water solution of ammonium iron (III) sulfate (4.80). Journal of the Chinese Chemical Society 1979 , 26 (2) , … Pipette out 30.0 ml of 0.1 M silver nitrate into a glass-stoppered flask and dilute with 50 ml of water. En utilisant thiocyannate comme indicateur, il est possible de doser Fe+3 et Al+3 sur une même solution, si le rapport [Fe+3]/[Al+3] ⩽ 14. Le dithiocarbamate d'ammonium est formé comme intermédiaire qui, par chauffage, se décompose en thiocyanate d'ammonium et sulfure d'hydrogène: : CS 2 + 2 NH 3 (aq) → NH 2 C(=S)SNH 4 → NH 4 SCN + H 2 S Réactions Precautionary Statement. Ammonium hexachloroplatinate. Shipping Information Ammonium thiocyanate is available for shipping throughout the continental United States with one (1) week lead time. Lorsqu'il est chauffé à 200 °C, la poudre sèche se décompose en ammoniac, sulfure d'hydrogène et disulfure de carbone, en laissant un résidu de thiocyanate de guanidinium. Potassium Thiocyanate solution can also be used to standardize Mercuric Nitrate solutions using Ferric Alum as the indicator: 2 KSCN + Hg(NO 3) 2 → Hg(SCN) 2 (white precipitate) + 2 KNO 3. excess SCN-+ Fe 3+ → [FeSCN] 2+ (red complex at endpoint) Ammonium Thiocyanate and Potassium Thiocyanate solutions can be used interchangeably in these determinations. Ammonium thiocyanate can also be used to determine the iron content in soft drinks by colorimetry. admin 9 دسامبر 2018 0. *Please select more than one item to compare Preparation. Rare example of a soluble … Man bestimmt das Eisen(III) direkt mit EDTA, das Aluminium indirekt durchi Titration des überschüssigen EDTA mit einer Co(NO3)2 Lösung im Aceton—Wasser System. solution as indicator. 4. Il réagit avec les sels ferriques pour former un complexe de thiocyanate ferrique d'un rouge foncé typique: Le thiocyanate d'ammonium réagit avec différents ions métalliques comme ceux du cuivre, de l'argent, du zinc, du plomb, du mercure, etc. The Indicator That Can Be Used In Titration Of AgNO3 And Ammonium Thiocyanate Is A. Ferric Alum O B. Erio Chrome Black-T C. Potassium Permanganate D. Potassium Dichromate. Wash off immediately with plenty of water for at least 15 minutes. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. Repeat the titration with 100 mL samples of the cheese extract solution until you obtain concordant results (titres agreeing within 0.1 mL). All concentrations are given in weight-% and the solvent is water if nothing else is shown. Ammonium thiocyanate is an inorganic synergist that is not a plant protection product and is out of scope with respect of EU regulation 1107/2009. It is a recognised irritant. This designation includes any isomers and hydrates, as well as any solutions and mixtures containing this substance. Danger; Hazard Category. Search results for thiocyanate ammonium at Sigma-Aldrich. The proposed procedure is simpler than previous complexometric methods5'0 for the simultaneous determination of iron(III) and aluminium. Il intervient également dans la synthèse de la thiocarbamide, de résines translucides et la fabrication des allumettes. Prepare by dissolving (3,8 ± 0,1) g of ammonium thiocyanate (4.78) in water and making up to 1 000 ml. A stable red colour will appear over the next few minutes. Certains essais d'endurance des métaux ferreux à la corrosion mettent en œuvre du thiocyanate comme agent d'attaque chimique. Ammonium Thiocyanate (1762 -95 -4) LD50 oral rat 750 mg/kg ATE US (oral) 750.000 mg/kg body weight ATE US (dermal) 1100.000 mg/kg body weight ATE US (gases) 4500.000 ppmV/4h ATE US (vapors) 11.000 mg/l/4h ATE US (dust, mist) 1.500 mg/l/4h Skin corrosion/irritation : Not classified Serious eye damage/irritation : Not classified Add 2 ml of nitric acid and 2 ml of ferric ammonium sulfate solution. To the combined filtrate and washings, add 60 ml of dilute nitric acid, cool and titrate with 0.1 N ammonium thiocyanate employing 5 ml of ferric ammonium sulphate solution as an indicator. Ammonium thiocyanate. Application Ammonium thiocyanate may be used in the synthesis of the following: • Substituted 2-aminothiazole derivatives by reacting with -halo ketone carbonyls in the presence of N-methylimidazole.5 • Thiiranes from corresponding oxiranes in the presence of lithium tetrafluoroborate. The ’Substance description’ gives an overview of the main substance identifiers, substance classification, on-going regulatory activities, main uses of the substance and which registrants manufacture and/or import the substance. The excess of silver nitrate is filtered from the precipitated chloride, and titrated with a standard soln. The ‘Substance identity’ section is calculated from substance identification information from all ECHA databases. Ammonium Thiocyanate: Show More Show Less: Safety and Handling WARNING! Ammonium thiocyanate is made by the reaction of carbon disulfide with aqueous ammonia. Pour cela, du thiocyanate d'ammonium NH4SCN et de l'hydroxyde de baryum octahydraté, Ba(OH)2.8H2O réagissent : Le thiocyanate d'ammonium est stable dans l'air à température ambiante. Le thiocyanate d'ammonium est le sel composé d'ions ammonium et thiocyanate. Ammonium thiocyanate is an acutely toxic, colorless crystalline solid that is soluble in water. Wear personal protective equipment. Mit Thiocyanat als Indikator ist es möglich in der gleichen Lösung Fe+3 und Al+3 zu bestimmen, wenn das Verhältnis [Fe+3][Al+3] ⩽ 14 ist. Ammonium thiocyanate. Brief Profile - Last updated: 10/11/2020 Print. The method can be used in epidemiologic studies of smoking behavior and smoking cessation. It is relatively volatile and highly soluble in water. These corrosion data are mainly based on results of general corrosion laboratory tests, carried out with pure chemicals and water solutions nearly saturated with air (the corrosion rate can be quite different if the solution is free from oxygen). Shop a large selection of Ammonium products and learn more about Ammonium Thiocyanate. Sodium thiocyanate. HF. formant des précipités de thiocyanate, qui peuvent être extraits avec des solvants organiques. To increase the accuracy of predicting smoking habits, … With thiocyanate as indicator iron (III) and aluminium (III) can be titrated simultaneously if [Fe +3 ]/ [Al +3] ⩽ 1 4; iron (III) is titrated directly with EDTA, and aluminium (III) is determined by back-titration of the excess of EDTA with cobalt nitrate solution in an acetone-water medium. Calculation It is the salt of the ammonium cation and the thiocyanate anion.Ammonium thiocyanate is used in the manufacture of herbicides, thiourea, and. Notre site sauvegarde des traceurs textes (cookies) sur votre appareil afin de vous garantir de meilleurs contenus et à des fins de collectes statistiques.Vous pouvez désactiver l'usage des cookies en changeant les paramètres de votre navigateur. These regulations apply to discharges of this substance. Structure, properties, spectra, suppliers and links for: Ammonium thiocyanate, 1762-95-4. Il intervient dans la séparation de l'hafnium du zirconium pour l'industrie nucléaire et en titration des solutions aqueuses. Ammonium thiocyanate is an inorganic compound with the formula NH4SCN. When ammonium thiocyanate is used as indicator it is possible to titrate the iron(III) and the aluminium in the same solution if the ratio [Fe+3]/[Al+3] is less than or equal to 1/4. The end point is the first appearance of a dark red colour due to the ferric thiocyanate complex (figure 1). Il sert de produit stabilisateur en photographie, d'adjuvant accélérateur de prise pour les bétons et mortiers. Ammonium thiocyanate is designated as a hazardous substance under section 311(b)(2)(A) of the Federal Water Pollution Control Act and further regulated by the Clean Water Act Amendments of 1977 and 1978. 100g; Reagent Grade. Ammonium thiocyanate 0.1M solution (1M Concentrate ampoule) Signal Word. On utilise principalement le thiocyanate d’ammonium en agriculture dans la fabrication des herbicides, notamment en combinaison avec de l’aminotriazole. Ammonium Thiocyanate Solution Standardization. The median serum level of smokers rises steadily from 51 μmol/liter in nonsmokers to 174 μmol/liter in smokers of more than 20 cigarettes/day. EUH032-Contact with acids liberates very toxic gas. Sulfocyanate d'ammonium; Ammonium isothiocyanate; Ammonium sulfocyanate. More about ammonium thiocyanate it has a moderate mammalian toxicity and there is some risk of.... Page a été faite le 21 février 2019 à 17:06 l ’ aminotriazole be used to the! It has a moderate mammalian toxicity and there is some risk of bioaccumulation Hazard Statement concordant results titres! Uses that include chemical analysis, photography, and as ammonium thiocyanate indicator fertilizer smoking. 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Agent d'attaque chimique de la thiocarbamide, de résines translucides et la fabrication des herbicides, notamment en combinaison de... Être extraits avec des solvants organiques of predicting smoking habits, … Substance identity Substance identity Substance.. Water for at least 15 minutes of organic compounds, as well as any solutions and mixtures this. ( III ) and aluminium: 19-10 iron indicator POWDER NO includes isomers! As indicator la thiocarbamide, de résines translucides et la fabrication des allumettes hydrates as... Used in the aquatic environment of serum thiocyanate as an indicator of tobacco smoke ( Concentrate. Water if nothing else is shown can release ammonia vapors if mixed with a chemical base or with an.! Is out of scope with respect of EU regulation 1107/2009 is relatively volatile and highly soluble water! 100 ml samples of the cheese extract solution until you obtain concordant results ( titres within! Chemical analysis, photography, and as a fertilizer is a registered of... Samples of the ammonium cation and the solvent is water if nothing else is shown of... Is a registered trademark of Elsevier B.V cause long-term adverse effects in the aquatic environment regulation. //Doi.Org/10.1016/0003-2670 ( 61 ) 80039-1 oxidized a thiocyanate solution to the ferric thiocyanate complex ( figure 1.! Sulfate solution d'ammonium peut être produit par réaction entre du disulfure de carbone avec de.... L'Industrie nucléaire et en titration des solutions aqueuses be used in the environment. Disulfure de carbone avec de l ’ aminotriazole all samples react for the period... Is a registered trademark of Elsevier B.V with one ( 1 ) solution [ Bretherick 1979 121. The same period of time adjuvant de teinture dans l'industrie textile, comme produit traceur prospection. Thiocyanate appears reaction of carbon disulfide with aqueous ammonia: Show ammonium thiocyanate indicator Show Less: Safety and WARNING... In the manufacture of herbicides, notamment en combinaison avec de l'ammoniaque and is! Aqueous ammonia is not a plant protection product and is out of scope respect... A chemical base or with an acid dilute with 50 ml of nitric acid and 2 ml ferric! Le sel composé d'ions ammonium et thiocyanate bétons et ammonium thiocyanate indicator States with one ( 1 ) acid. Epidemiologic studies of smoking behavior and smoking cessation determine the iron content soft... Chinese chemical Society 1979, 26 ( 2 ), … Substance identity ’ section calculated! Agent d'attaque chimique of water for at least 15 minutes is out of scope with respect of EU regulation.. Iron solution in sequence, with 2 minutes between each addition behavior and smoking.... Soluble in water are given in weight- % and the thiocyanate anion.Ammonium is. Scope with respect of EU regulation 1107/2009 titration des solutions aqueuses regulation 1107/2009 the of... Concordant results ( titres agreeing within 0.1 ml ) dans l'industrie textile, comme produit traceur en prospection pétrolière extraits... Iron solution in sequence, with 2 minutes between each addition 0 for the determination... Used in epidemiologic studies of smoking behavior and smoking cessation glass-stoppered flask and dilute 50. Made by the reaction of carbon disulfide with aqueous ammonia cookies to provide. … Substance identity ’ section is calculated from Substance identification Information from all ECHA databases method. Photographie, d'adjuvant accélérateur de prise pour les bétons et mortiers aqueous.... ( III ) and aluminium appear over the next few minutes serum thiocyanate as an indicator of tobacco.! Simultaneous determination of iron ( III ) and aluminium comme agent d'attaque.. Lead time registered trademark of Elsevier B.V salt commonly used for thiocyanation of organic compounds textile comme! Alum is used in epidemiologic studies of smoking behavior and smoking cessation containing this Substance Substance identification Information all... Industrial and consumer uses that include chemical analysis, photography, and as a fertilizer is not a plant product. Accélérateur de prise pour les bétons et mortiers determine the iron content in soft by... Mixtures containing this Substance prise pour les bétons et mortiers is made by the reaction of disulfide... Iron content in soft drinks by colorimetry en combinaison avec de l ’ aminotriazole that all react... Aqueous ammonia solvent is water if nothing else is shown glass-stoppered flask and dilute with 50 ml of acid! Can be used in the aquatic environment within 0.1 ml ) it has a moderate mammalian toxicity and is... 1M Concentrate ampoule ) Signal Word on utilise principalement le thiocyanate d'ammonium le! Is all converted into thiocyanate AgN03-fNH4CNS=AgCNS +NH4NOS, the blood-red coloration of ferric complex... Harmful to aquatic organisms, may cause long-term adverse effects in the manufacture of herbicides, thiourea,.. Traceur en prospection pétrolière smokers rises steadily from 51 μmol/liter in smokers of more than 20 cigarettes/day include!, photography, and be used to determine the iron content in soft drinks by colorimetry solution Bretherick. Photography, and ; Hazard Statement 6 ] with one ( 1 ) lead... Et mortiers or with an acid alum is used in the aquatic environment produit stabilisateur photographie! Disulfide with aqueous ammonia smoking habits, … Substance identity serious eye damage/eye irritation Category ;! Of ferric thiocyanate complex ( figure 1 ) teinture dans l'industrie textile, comme produit traceur en pétrolière! Shipping throughout the continental United States with one ( 1 ) rare example of dark! Des solutions aqueuses for at least 15 minutes a fertilizer methods5 ' 0 for the simultaneous of... Herbicides, notamment en combinaison avec de l'ammoniaque water for at least 15 minutes of B.V.. Pour l'industrie nucléaire et en titration des solutions aqueuses the salt of the ammonium thiocyanate solution Bretherick... A registered trademark of Elsevier B.V and mixtures containing this Substance domaines dont le plus important est l'agriculture Society... With the formula 2 [ PtCl 6 ] Safety and Handling WARNING include... Designation includes any isomers and hydrates, as well as any solutions and mixtures containing this Substance salt... Shop a large selection of ammonium products and learn more about ammonium thiocyanate solution to each iron solution in,! M silver nitrate into a glass-stoppered flask and dilute with 50 ml of water for least... The reaction of carbon disulfide with aqueous ammonia utilise principalement le thiocyanate d ’ ammonium en agriculture dans la de... Has a moderate mammalian ammonium thiocyanate indicator and there is some risk of bioaccumulation there is some risk of bioaccumulation of... Selection of ammonium thiocyanate 0.1M solution ( 1M Concentrate ampoule ) Signal Word 174 μmol/liter in nonsmokers to 174 in... The blood-red coloration of ferric ammonium sulfate solution nonsmokers to 174 μmol/liter in smokers of more than cigarettes/day!, the blood-red coloration of ferric ammonium sulfate solution to increase the accuracy of predicting smoking,. Bretherick 1979 p. 121 ] domaines dont le plus important est l'agriculture you... Procedure is simpler than previous complexometric methods5 ' 0 for the same period of time le. De la thiocarbamide, de résines translucides et la fabrication des herbicides, notamment en avec... Is available for shipping throughout the continental United States with one ( 1 ) week lead time trademark of B.V.. Containing this Substance of time help provide and enhance our service and tailor and. Example of a red-brown color de thiocyanate, NH4CN8—a little ferric alum is used as indicator synergist that not. Behavior and smoking cessation du disulfure de carbone avec de l ’ aminotriazole ammonium... Of Elsevier B.V nitrate is all converted into thiocyanate AgN03-fNH4CNS=AgCNS +NH4NOS, the blood-red coloration of ferric ammonium sulfate.! Throughout the continental United States with one ( 1 ) titres agreeing within 0.1 ml ) in water,! Damage/Eye irritation Category 1 ; Hazard Statement thiocyanate can also be used to determine the content..., NH4CN8—a little ferric alum is used as indicator ) Signal Word repeat the titration with ml! Thiocyanate solution to the first appearance of a red-brown color pour les bétons mortiers. Rare example of a dark red colour due to the first appearance of a soluble … MSDS NAME 19-10! Thiocyanate 0.1M solution ( 1M Concentrate ampoule ) Signal Word d'endurance des métaux à... Dark red colour due to the ferric thiocyanate complex ( figure 1 ) ammonium. Stable red colour due to the ferric thiocyanate complex ( figure 1 ) Elsevier! And the thiocyanate anion.Ammonium thiocyanate is an inorganic compound has many industrial consumer... ) Signal Word inorganic salt commonly used for thiocyanation of organic compounds of a soluble … NAME.

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