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Kaliumhydrogendifluorid

Potassium hydrogen fluoride Struktur
7789-29-9
CAS-Nr.
7789-29-9
Bezeichnung:
Kaliumhydrogendifluorid
Englisch Name:
Potassium hydrogen fluoride
Synonyma:
POTASSIUM BIFLUORIDE;POTASSIUM HYDROGEN DIFLUORIDE;K(HF2);NA 1811;en difL;Potassium hydrog;Potassium hydrogen f;Kaliumhydrogenfluorid;bifluoruredepotassium;potassiumacidfluoride
CBNumber:
CB8854344
Summenformel:
F2HK
Molgewicht:
78.1
MOL-Datei:
7789-29-9.mol

Kaliumhydrogendifluorid Eigenschaften

Schmelzpunkt:
239 °C(lit.)
Dichte
2.37 g/mL at 25 °C(lit.)
L?slichkeit
insoluble in ethanol
Aggregatzustand
Crystals or Crystalline Powder
Wichte
2.37
Farbe
White to light gray
Wasserl?slichkeit
39 g/100 mL (20 ºC)
Sensitive 
Hygroscopic
Merck 
14,7610
Expositionsgrenzwerte
ACGIH: TWA 2.5 mg/m3
NIOSH: IDLH 250 mg/m3
InChI
InChI=1S/2FH.K/h2*1H;/q;;+1/p-1
InChIKey
VBKNTGMWIPUCRF-UHFFFAOYSA-M
SMILES
F.[K+].[F-]
CAS Datenbank
7789-29-9(CAS DataBase Reference)
NIST chemische Informationen
Potassium hydrogen fluoride(7789-29-9)
EPA chemische Informationen
Potassium bifluoride (7789-29-9)
Sicherheit
  • Risiko- und Sicherheitserkl?rung
  • Gefahreninformationscode (GHS)
Kennzeichnung gef?hrlicher T,C
R-S?tze: 25-34
S-S?tze: 26-36/37/39-45-37-22
RIDADR  UN 3421 8/PG 2
WGK Germany  1
RTECS-Nr. TS6650000
3
Hazard Note  Corrosive
TSCA  Yes
HazardClass  8
PackingGroup  II
HS Code  28261990
Bildanzeige (GHS) GHS hazard pictogramsGHS hazard pictograms
Alarmwort Achtung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H301 Giftig bei Verschlucken. Akute Toxizit?t oral Kategorie 3 Achtung GHS hazard pictogramssrc="/GHS06.jpg" width="20" height="20" /> P264, P270, P301+P310, P321, P330,P405, P501
H314 Verursacht schwere Ver?tzungen der Haut und schwere Augensch?den. ?tzwirkung auf die Haut Kategorie 1B Achtung GHS hazard pictogramssrc="/GHS05.jpg" width="20" height="20" /> P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
Sicherheit
P260 Dampf/Aerosol/Nebel nicht einatmen.
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.
P301+P330+P331 BEI VERSCHLUCKEN: Mund ausspülen. KEIN Erbrechen herbeiführen.
P303+P361+P353 BEI BERüHRUNG MIT DER HAUT (oder dem Haar): Alle kontaminierten Kleidungsstücke sofort ausziehen. Haut mit Wasser abwaschen oder duschen.

Kaliumhydrogendifluorid Chemische Eigenschaften,Einsatz,Produktion Methoden

R-S?tze Betriebsanweisung:

R25:Giftig beim Verschlucken.
R34:Verursacht Ver?tzungen.

S-S?tze 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 m?glich, dieses Etikett vorzeigen).
S37:Geeignete Schutzhandschuhe tragen.
S22:Staub nicht einatmen.

Chemische Eigenschaften

WHITE TO LIGHT GREY CRYSTALS OR CRYSTALLINE POWDER

Verwenden

Potassium hydrogen fluoride is widely used as an etchant in glass and cleaning products. It finds an important application in the synthesis of special optical glass viz. crown and crown flint glass and as a catalyst for polymerization. It is involved in the manufacturing of wood preservatives, soldering agents and brazing. It is also used in the manufacturing of organic and inorganic fluorine compounds.

Allgemeine Beschreibung

Colorless crystals, corrosive to tissues, etches glass.

Air & Water Reaktionen

Water soluble giving strongly acidic solutions.

Reaktivit?t anzeigen

Acidic salts, such as Potassium hydrogen fluoride, are generally soluble in water. The resulting solutions contain moderate concentrations of hydrogen ions and have pH's of less than 7.0. They react as acids to neutralize bases. These neutralizations generate heat, but less or far less than is generated by neutralization of inorganic acids, inorganic oxoacids, and carboxylic acid. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible.

Hazard

Corrosive to tissue.

Health Hazard

TOXIC; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.

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.

Sicherheitsprofil

A poison. Very corrosive and reactive. A corrosive irritant to the eyes, skin, and mucous membranes. When heated to decomposition it emits toxic fumes of F and K2O. See also FLUORIDES and HYDROFLUORIC ACID.

l?uterung methode

It crystallises from water. It is very soluble in hot H2O and 41% at 21o. [Kwasnik in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 237 1963.]

Kaliumhydrogendifluorid Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Kaliumhydrogendifluorid Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

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7789-29-9(Kaliumhydrogendifluorid)Verwandte Suche:


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  • POTASSIUM BIFLUORIDEPOTASSIUM BIFLUORIDEPOTASSIUM BIFLUORIDEPOTASSIUM BIFLUORIDE
  • en difL
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  • Potassium Hydrogenfluoride >
  • Potassium hydrogen difL
  • Potassium hydrogen fluoride, 98%,
  • POTASSIUM HYDROGEN DIFLUORIDE
  • POTASSIUM BIFLUORIDE
  • 7789-29-9
  • F2HK
  • 2FKH
  • HF2K
  • KFHF
  • HFK
  • Inorganic Salts
  • Fluorination
  • C-X Bond Formation (Halogen)
  • Synthetic Reagents
  • Chemical Synthesis
  • Synthetic Reagents
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