Ammoniumhydrogendifluorid

Bezeichnung:Ammoniumhydrogendifluorid

CAS-Nr1341-49-7

Englisch Name:Ammonium hydrogen difluoride

CBNumberCB0273686

SummenformelF2H5N

Molgewicht57.04

MOL-Datei1341-49-7.mol

Synonyma

Ammoniumhydrogendifluorid

Ammoniumhydrogendifluorid physikalisch-chemischer Eigenschaften

Schmelzpunkt	125 °C(lit.)
Siedepunkt	230 °C
Dichte	1,5 g/cm³
Dampfdruck	1 hPa (20 °C)
Flammpunkt	238°C
storage temp.	Store at room temperature.
Löslichkeit	630g/l
Aggregatzustand	Solid
pka	6.3[at 20 ℃]
Farbe	White
Wichte	1.5
PH	2 (5.7g/l, H2O, 20℃)
Geruch (Odor)	acidic odor
Wasserlöslichkeit	630 g/L (20 ºC)
Sensitive	Hygroscopic
Merck	14,498
Expositionsgrenzwerte	ACGIH: TWA 2.5 mg/m3 NIOSH: IDLH 250 mg/m3; TWA 2.5 mg/m3
Stabilität	hygroscopic
InChIKey	KVBCYCWRDBDGBG-UHFFFAOYSA-N
CAS Datenbank	1341-49-7(CAS DataBase Reference)
EPA chemische Informationen	Ammonium bifluoride (1341-49-7)

Sicherheit

Kennzeichnung gefährlicher	T,C
R-Sätze:	25-34
S-Sätze:	22-26-37-45-36/37/39
RIDADR	UN 1727 8/PG 2
WGK Germany	1
RTECS-Nr.	BQ9200000
F	3-9
Hazard Note	Toxic/Corrosive/Hygroscopic
TSCA	Yes
HazardClass	8
PackingGroup	II
HS Code	28261910
Giftige Stoffe Daten	1341-49-7(Hazardous Substances Data)

Gefahreninformationscode (GHS)

Ammonium hydrogen difluoride Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R25:Giftig beim Verschlucken.
R34:Verursacht Verätzungen.
S-Sätze Betriebsanweisung:
S22:Staub nicht einatmen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S37:Geeignete Schutzhandschuhe tragen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
Chemische Eigenschaften
Ammonium bifluoride.
Chemische Eigenschaften
white scales or flakes, also referred to asammonium hydrogen fluoride, anunonium difluoride and anunonium acid fluoride.
Physikalische Eigenschaften
Orthorhombic or tetragonal crystals; etches glass; deliquescent; density 1.50 g/cm3; refractive index 1.390; melts at 125.6°C; very soluble in water; slightly soluble in alcohol.
Verwenden
Ammonium hydrogen fluoride is used as a chemical reagent in analysis and an antiseptic. It is also used in ceramics, electroplating, component of glass etchants as well as food processing equipment disinfectant. It acts as an intermediate in the production of hydrofluoric acid from hexafluorosilicic acid.
Verwenden
In manufacture of Mg and Mg alloys; in brightening of Al; for purifying and cleansing various parts of beer-dispensing apparatus, tubes, etc., sterilizing dairy and other food equipment; in glass and porcelain industries; as mordant for aluminum; as a "sour" in laundering cloth. In lab production of HF.
Allgemeine Beschreibung
Ammonium bifluoride solution is the white crystalline solid dissolved in water. Ammonium hydrogen difluoride is corrosive to metals and tissue. Ammonium hydrogen difluoride is used in ceramics.
Air & Water Reaktionen
Dissolves in water and forms a weak solution of hydrofluoric acid.
Reaktivität anzeigen
AMMONIUM BIFLUORIDE reacts violently with bases. In presence of moisture will corrode glass, cement, and most metals. Flammable hydrogen gas may collect in enclosed spaces. Do not use steel, nickel, or aluminum containers [USCG, 1999].
Hazard
Corrosive to skin.
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.
Flammability and Explosibility
Non flammable
Sicherheitsprofil
Caustic poison and strong irritant by all routes. See also HYDROFLUORIC ACID. When heated to decomposition it emits very toxic fumes of F-, NO,, and NH3.
mögliche Exposition
It is used as a sterilizer, in dairy and brewery operations; in the ceramic, glass, and electroplating industries; as a laundry sour.
Versand/Shipping
Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin. Keep victim warm and quiet. Effects of exposure (inhalation, ingestion or skin contact) to substance may be delayed. Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves. Medical observation is recommended for 24 to 48 hours after breathing overexposure, as pulmonary edema may be delayed. As first aid for pulmonary edema, a doctor or authorized paramedic may consider administering a drug or other inhalation therapy.
Inkompatibilitäten
Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. In the presence of moisture corrodes concrete, metals, glass.
Waste disposal
May be buried in a specially designated chemical landfill. Aqueous wastes may be reacted with an excess of lime followed by lagooning and either recovery or land disposal of the separated calcium fluoride.

Ammonium hydrogen difluoride Upstream-Materialien And Downstream Produkte

Ammoniumhydrogendifluorid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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