Hydrogeniodid

Hydriodic acid Struktur
10034-85-2
CAS-Nr.
10034-85-2
Bezeichnung:
Hydrogeniodid
Englisch Name:
Hydriodic acid
Synonyma:
HYDROIODIC ACID;HYDROGEN IODIDE;Hydroiodic Acid 55% to 57% Solution;Hydriodic acid, 57 wt.% solution in H2O;Hydriodic;55-57 wt.%;caswellno482c;Hydrideiodine;hydrogen Hydrogeniodid
CBNumber:
CB7852570
Summenformel:
HI
Molgewicht:
127.91
MOL-Datei:
10034-85-2.mol

Hydrogeniodid Eigenschaften

Schmelzpunkt:
-50.8°
Siedepunkt:
127 °C(lit.)
Dichte
1.96 g/mL at 20 °C
Dampfdruck
721.8kPa at 20℃
Flammpunkt:
126-127°C
storage temp. 
2-8°C
Löslichkeit
very soluble in H2O; soluble in organic solvents
pka
-10(at 25℃)
Aggregatzustand
colorless or yellow gas
Farbe
Colorless to brown
Geruch (Odor)
Pungent odor
Säure-Base-Indikators(pH-Indikatoren)
1
PH
3.01(1 mM solution);2.04(10 mM solution);1.08(100 mM solution)
Wasserlöslichkeit
soluble
Sensitive 
Hygroscopic
Merck 
14,4776
Expositionsgrenzwerte
ACGIH: TWA 0.01 ppm
Dielectric constant
3.4(-50℃)
Stabilität:
Stable. Incompatible with bases, amines. Corrodes steel. May discolour on exposure to air and light.
CAS Datenbank
10034-85-2(CAS DataBase Reference)
NIST chemische Informationen
Hydrogen iodide(10034-85-2)
EPA chemische Informationen
Hydriodic acid (10034-85-2)
Sicherheit
  • Risiko- und Sicherheitserklärung
  • Gefahreninformationscode (GHS)
Kennzeichnung gefährlicher C
R-Sätze: 34-35
S-Sätze: 26-36/37/39-45-9
RIDADR  UN 1787 8/PG 2
WGK Germany  -
RTECS-Nr. MW3760000
8
TSCA  Yes
HazardClass  8
PackingGroup  II
HS Code  28111990
Giftige Stoffe Daten 10034-85-2(Hazardous Substances Data)
Bildanzeige (GHS) GHS hazard pictogramsGHS hazard pictograms
Alarmwort Achtung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H290 Kann gegenüber Metallen korrosiv sein. Korrosiv gegenüber Metallen Kategorie 1 Warnung P234, P390, P404
H314 Verursacht schwere Verätzungen der Haut und schwere Augenschäden. Ätzwirkung auf die Haut Kategorie 1B Achtung P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
H411 Giftig für Wasserorganismen, mit langfristiger Wirkung. Langfristig (chronisch) gewässergefährdend Kategorie 2
Sicherheit
P234 Nur im Originalbehälter aufbewahren.
P273 Freisetzung in die Umwelt vermeiden.
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.
P303+P361+P353 BEI BERÜHRUNG MIT DER HAUT (oder dem Haar): Alle kontaminierten Kleidungsstücke sofort ausziehen. Haut mit Wasser abwaschen oder duschen.
P305+P351+P338 BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach Möglichkeit entfernen. Weiter spülen.

Hydrogeniodid Chemische Eigenschaften,Einsatz,Produktion Methoden

ERSCHEINUNGSBILD

FARBLOSES GAS MIT STECHENDEM GERUCH.

PHYSIKALISCHE GEFAHREN

Das Gas ist schwerer als Luft.

CHEMISCHE GEFAHREN

Reagiert mit starken Oxidationsmitteln und Magnesium unter Feuergefahr. Starke Säure in wässriger Lösung. Reagiert sehr heftig mit Basen. ätzend.

ARBEITSPLATZGRENZWERTE

TLV nicht festgelegt (ACGIH 2005).
MAK nicht festgelegt (DFG 2005).

AUFNAHMEWEGE

Aufnahme in den Körper durch Inhalation.

INHALATIONSGEFAHREN

Eine gesundheitsschädliche Konzentration des Gases in der Luft wird beim Entweichen aus dem Behälter sehr schnell erreicht.

WIRKUNGEN BEI KURZZEITEXPOSITION

WIRKUNGEN BEI KURZZEITEXPOSITION:
Die Substanz verätzt die Augen, die Haut und die Atemwege. Inhalation des Gases kann zu Lungenödem führen (s.Anm.). Die Auswirkungen treten u.U. verzögert ein. ärztliche Beobachtung notwendig. (s.Anm.)

LECKAGE

Belüftung. Persönliche Schutzausrüstung: Chemikalienschutzanzug mit umgebungsluftunabhängigem Atemschutzgerät.

R-Sätze Betriebsanweisung:

R34:Verursacht Verätzungen.
R35:Verursacht schwere Verätzungen.

S-Sätze Betriebsanweisung:

S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
S9:Behälter an einem gut gelüfteten Ort aufbewahren.

Aussehen Eigenschaften

HI. 57%ige Lösung in Wasser. Farblose, stechend riechende Flüssigkeit.

Gefahren für Mensch und Umwelt

Verursacht Verätzungen.
Erhebliche Erblindungsgefahr bei Augenkontakt.
Nicht mit starken Oxidationsmitteln oder starken Laugen in Berührung bringen.

Schutzmaßnahmen und Verhaltensregeln

Geeignete Schutzhandschuhe als kurzzeitiger Spritzschutz.

Verhalten im Gefahrfall

Dämpfe nicht einatmen. Substanzkontakt vermeiden.
Nicht in die Kanalisation gelangen lassen.
Mit flüssigkeitsbindendem Material, z.B. Rench Rapid aufnehmen. Der Entsorgung zuführen. Nachreinigen.
Auf Umgebung abstimmen. Entstehende Dämpfe mit Wasser niederschlagen.
Im Brandfall kann Iodwasserstoff und Iod entstehen.

Erste Hilfe

Nach Hautkontakt: Mit reichlich Wasser abwaschen. Abtupfen mit Polyethylenglycol 400.
Nach Augenkontakt: Mit reichlich Wasser bei geöffnetem Lidspalt mindestens 10 Minuten ausspülen. Sofort Augenarzt hinzuziehen.
Nach Einatmen: Frischluft. Sofort Arzt hinzuziehen.
Nach Verschlucken: Reichlich Wasser trinken lassen. Erbrechen vermeiden (Perforationsgefahr!). Sofort Arzt hinzuziehen.
Nach Kleidungskontakt: Kontaminierte Kleidung sofort entfernen.
Ersthelfer: siehe gesonderten Anschlag

Sachgerechte Entsorgung

Verdünnt als wässrige, saure Salzlösungen entsorgen.

Beschreibung

‘Iodine’ is derived from iodes, a Greek word meaning violet. It is a member of the halide family and hydrogen iodide is considered a strong acid.

Chemische Eigenschaften

Hydrogen iodide is a colourless to yellow/brown with an acrid odour non-flammable gas. Hydrogen iodide is incompatible with water and other halides. Hydrogen iodide, upon contact with moisture in air, releases dense vapours. Hydrogen iodide reacts with water to form corrosive acids and reacts violently with alkalis. Most metals corrode rapidly on contact with wet hydrogen iodide, and prolonged exposure of hydrogen iodide to fire or intense heat has been reported to cause the container to rupture and rocket.

Physikalische Eigenschaften

This is a strong acid, made by dissolving HI gas in water. However, hydrogen iodide and hydroiodic acid differ in that the former is a gas under standard conditions whereas the other is an aqueous solution of said gas. They are noninterconvertible. That is, once the acid is formed with water, it cannot be recovered like HCl or HBr. Hydroiodic acid is used in organic and inorganic synthesis as one of the primary sources of iodine and as a reducing agent.
With moist air, HI gas gives a mist (or fumes) of hydroiodic acid. It is exceptionally soluble in water. One liter of water will dissolve 425 L of HI, the final solution containing only four water molecules per molecule of HI. As stated, although chemically related, hydroiodic acid is not pure HI but a mixture containing it. Commercial “concentrated” hydroiodic acid usually contains 90–98% HI by mass.

Verwenden

Hydriodic acid is used in the manufactureof iodides, as a reducing agent, and indisinfectants and pharmaceuticals.

Definition

hydrogen iodide: A colourless gas,HI; m.p. –51°C; b.p. –35.38°C. It canbe made by direct combination ofthe elements using a platinum catalyst.It is a strong acid dissociating extensivelyin solution (hydroiodic acid or hydriodic acid). It is also a reducingagent.

synthetische

Hydrogen iodide is prepared by direct combination of hydrogen and iodinevapor in the presence of platinum catalyst:
H2 + I2 → 2HI
The compound is produced in commercial scale by reaction of iodine withhydrazine or hydrogen sulfide:
2I2 + N2H4 → 4HI + N2
I2 + H2S → 2HI + S
Hydriodic acid may be prepared by dissolving hydrogen iodide gas in water.The acid also may be obtained by electrolysis of iodine solution or by passinghydrogen sulfide into a suspension of iodine in water and boiling to expelexcess sulfide. After boiling, the precipitated sulfur is removed by filtrationthrough fritted glass plate or glass wool.
Hydriodic acid in small quantities may be prepared by adding water care-fully to a solid mixture of red phosphorus and iodine.
Technical grade hydriodic acid is a 47% HI solution and usually has abrown color due to the presence of free iodine, produced by air oxidation of HI.Hydriodic acid should be stored in the dark to prevent photochemical decom-position, and free from air to prevent oxidation. The addition of 1.5%hypophosphorus acid (H3PO2) prevents oxidative decomposition.
Hydriodic acid also is commercially sold at 57% (azeotropic concentration)and 10% aqueous solutions.

Allgemeine Beschreibung

A colorless to yellow liquid with a pungent odor. Consists of a solution of hydrogen iodide in water. Fumes irritate the eyes and mucous membranes. Corrosive to metals and to tissue.
It is prepared by the reaction of iodine and hydrosulfuric acid or by the reaction of phosphorus plus iodine plus water followed by distillation. Concentrated hydroiodic acid reacts with the oxygen of the air to form free iodine, which gives a brownish color to the solution. It also gives an idea of the reducing nature of this acid. It is an important reagent in organic chemistry and is used commercially in the preparation of iodides.

Air & Water Reaktionen

Soluble in water with release of heat.

Reaktivität anzeigen

HYDROIODIC ACID reacts exothermically with organic bases (amines, amides) and inorganic bases (oxides and hydroxides of metals). Reacts exothermically with carbonates (including limestone and building materials containing limestone) and hydrogen carbonates to generate carbon dioxide. Reacts with sulfides, carbides, borides, and phosphides to generate toxic or flammable gases. Reacts with many metals (including aluminum, zinc, calcium, magnesium, iron, tin and all of the alkali metals) to generate flammable hydrogen gas. Reacts violently with acetic anhydride, 2-aminoethanol, ammonium hydroxide, calcium phosphide, chlorosulfonic acid, 1,1-difluoroethylene, ethylenediamine, ethyleneimine, oleum, perchloric acid, b-propiolactone, propylene oxide, silver perchlorate/carbon tetrachloride mixture, sodium hydroxide, uranium(IV) phosphide, vinyl acetate, calcium carbide, rubidium carbide, cesium acetylide, rubidium acetylide, magnesium boride, mercury(II) sulfate [Lewis]. Mixtures with concentrated sulfuric acid can evolve toxic hydrogen iodide gas at a dangerous rate. Decomposes at high temperatures to emit toxic products. Reacts with fluorine, dinitrogen trioxide, nitrogen dioxide/dinitrogen tetraoxide, and fuming nitric acid.

Hazard

Strong irritant. Poison.

Health Hazard

Hydriodic acid is a corrosive liquid thatcan produce burns on contact with the skin.Contact of acid with the eyes can causesevere irritation. The gas, hydrogen iodide, isa strong irritant to the eyes, skin, and mucousmembranes. No exposure limit has been setfor this gas.

Brandgefahr

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated.

läuterung methode

Iodine can be removed from aqueous HI, probably as the amine hydrogen triiodide, by three successive extractions using a 4% solution of Amberlite LA-2 (a long-chain aliphatic amine) in CCl4, toluene or pet ether (10mL per 100mL of acid). [Davidson & Jameson Chem Ind (London) 1686 1963.] Extraction with tributyl phosphate in CHCl3 or other organic solvents is also suitable. Alternatively, a De-acidite FF anion-exchange resin column in the OH--form using 2M NaOH, then into its I--form by passing dilute KI solution through, can be used. Passage of an HI solution under CO2 through such a column removes polyiodide. The column can be regenerated with NaOH. [Irving & Wilson Chem Ind (London) 653 1964]. The earlier method was to reflux with red phosphorus and distil in a stream of N2. The colourless product is stored in ampoules in the dark [Bradbury J Am Chem Soc 74 2709 1952, Heisig & Frykholm Inorg Synth I 157 1939]. It fumes in moist air. HARMFUL VAPOURS.

Hydrogeniodid Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Iod

Downstream Produkte


Hydrogeniodid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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10034-85-2(Hydrogeniodid)Verwandte Suche:


  • HYDRIODIC ACID(AMPULE)
  • Hydriodic acid 57 wt. % in H2O, distilled, stabilized, 99.95%
  • Hydriodic acid 57 wt. %, distilled, 99.999% trace metals basis
  • Hydriodic acid contains <=1.5% hypophosphorous acid as stabilizer, ACS reagent, >=47.0%
  • Hydriodic acid contains No stabilizer, ACS reagent, 55%
  • Hydriodic acid contains No stabilizer, distilled, 57 wt. % in H2O, 99.99% trace metals basis
  • Hydriodic acid puriss. p.a., >=67% (T)
  • Hydriodic acid4x500ml
  • Hydriodic acid solution, 57 wt. % in water
  • Hydriodic acid, ACS, 47.0% min., stabilized
  • HYDRIODIC ACID, 57 WT. % IN WATER, DISTI
  • HYDRIODIC ACID, CONTAINS NO STABILIZER,&
  • acideiodhydrique(french)
  • acidoyodhidrico
  • Anhydrous hydriodic acid
  • anhydroushydriodicacid
  • caswellno482c
  • Hydriodic Acid (57%) [for General Organic Chemistry]
  • Hydrideiodine
  • HI >45% water solution
  • Hydroidic acid
  • HYDRIODIC ACID, UNSTABILIZED, 55%, A.C.S . REAGENT
  • Hydroiodic acid, <60%
  • HYDRIODIC ACID, 57 WT. % IN WATER, DISTILLED, STABILIZED, 99.95%
  • HYDROIODIC ACID 47%, ACS, STAB.
  • HYDRIODIC ACID 57 %, STABILIZED WITH H3P O2
  • HYDRIODIC ACID, 47+%, A.C.S. REAGENT, ST ABILIZED
  • HYDRIODIC ACID 57 WT. % IN WATER &
  • HYDRIODIC ACID, 57 WT. % IN WATER, DISTI LLED, UNSTABILIZED, 99.99%
  • HYDRIODIC ACID 57 WT. % IN WATER DIST&
  • HYDROIODIC ACID 55-58% ACS PACKED IN &
  • HYDRIODIC ACID 57 %, R. G., STABILIZED W ITH HYPOPHOSPHOROUS ACID
  • HYDRIODIC ACID UNSTABILIZED 55% &
  • HYDRIODIC ACID 47+% A.C.S. REAGENT &
  • HydriodicAcid57%Gr(WithStabilizer)
  • Hydriodic acid, 57% aq. soln.
  • hydrogen 
  • Hydriodic acid, 57 wt.% aqueous solution, distilled, stabilized, for analysis
  • Hydriodic acid, 57 wt.% aqueous solution, distilled, unstabilized, for analysis
  • HYDRIODIC ACID, 47% REAGENT (ACS)
  • HYDRIODIC ACID, 55% REAGENT (ACS)
  • hydriodic acid, acs
  • Jodwasserstoff
  • HYDRIODIC ACID: 57% W/W AQUEOUS SOLUTION, STAB WITH 1.5% HYPOPHOSPHOROUS ACID
  • HYDRIODIC ACID 57%
  • Hydriodic acid, ACS, 47%, stab. with 1.5% hypophosphorous acid
  • Hydriodic acid, ACS, 55-58%
  • Hydriodic acid, 57% w/w aq. soln., stab with 1.5% hypophosphorous acid
  • Hydrogen iodide, 0.75-1.0M in chloroform
  • Hydriodic Acid, 47%, Reagent
  • Hydriodic Acid, 55%, Reagent
  • IODINE TITRATION INDICATOR
  • HYDRIODIC ACID
  • HYDRIOTIC ACID
  • Hydrogenmonoiodide
  • iodured’hydrogeneanhydre(french)
  • yodurodehidrogenoanhidro
  • Hydriodic acid (47% in water)
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