Kaliumtetrahydroborat

Bezeichnung:Kaliumtetrahydroborat

CAS-Nr13762-51-1

Englisch Name:Potassium borohydride

CBNumberCB7455373

SummenformelBH4K

Molgewicht53.94

MOL-Datei13762-51-1.mol

Synonyma

Kaliumtetrahydroborat

Kaliumtetrahydroborat physikalisch-chemischer Eigenschaften

Schmelzpunkt	500 °C (dec.) (lit.)
Dichte	1.18 g/mL at 25 °C (lit.)
Brechungsindex	1.494
storage temp.	water-free area
Löslichkeit	soluble in H2O
Aggregatzustand	Powder
Farbe	White
Wichte	1.178
Wasserlöslichkeit	190 g/L (25 ºC)
Sensitive	Moisture Sensitive
Merck	14,7616
InChIKey	ICRGAIPBTSPUEX-UHFFFAOYSA-N
CAS Datenbank	13762-51-1(CAS DataBase Reference)
NIST chemische Informationen	Potassium tetrahydroborate(13762-51-1)
EPA chemische Informationen	Borate(1-), tetrahydro-, potassium (1:1) (13762-51-1)

Sicherheit

Kennzeichnung gefährlicher	F,T,C
R-Sätze:	14/15-24/25-34-11
S-Sätze:	26-36/37/39-43-45-7/8-28A-16
RIDADR	UN 1870 4.3/PG 1
WGK Germany	-
RTECS-Nr.	TS7525000
F	10
TSCA	Yes
HS Code	2850 00 20
HazardClass	4.3
PackingGroup	I
Toxizität	LD50 orally in Rabbit: 167 mg/kg LD50 dermal Rabbit 230 mg/kg

Gefahreninformationscode (GHS)

Potassium borohydride Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R14/15:Reagiert heftig mit Wasser unter Bildung hochentzündlicher Gase.
R24/25:Giftig bei Berührung mit der Haut und beim Verschlucken.
R34:Verursacht Verätzungen.
R11:Leichtentzündlich.
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.
S43:Zum Löschen . . . (vom Hersteller anzugeben) verwenden (wenn Wasser die Gefahr erhöht, anfügen: "Kein Wasser verwenden").
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
S7/8:Behälter trocken und dicht geschlossen halten.
S16:Von Zündquellen fernhalten - Nicht rauchen.
Chemische Eigenschaften
White, crystalline powder. Stable in moist and dry air, stable in vacuum to 500C, decomposed by acids with evolution of hydrogen. Partially soluble in water and ammonia; insoluble in ethers and hydrocarbons.
Verwenden
Reducing agent; source of H-.
Verwenden
Source of hydrogen, reducing agent for aldehydes, ketones, acid chlorides; foaming agent for plasticsPotassium borohydride is used as a selective reducing agent for ketones, aldehydes and acid chlorides. It is used as a precursor in the production of chloramphenicol, vitamin A, thiopenicol, atropine and scopolamine. It is used to prepare high dispersive copper nanoparticles by the chemical reduction method using potassium borohydride as a reducing agent.
Allgemeine Beschreibung
Potassium borohydride is a white crystalline or powdered solid. When exposed to water Potassium borohydride may react violently and start a fire. Potassium borohydride is toxic by ingestion. Potassium borohydride is used to make other chemicals.
Air & Water Reaktionen
Highly flammable. When exposed to water Potassium borohydride may react violently and start a fire. Produce flammable gases on contact with water. May ignite on contact with water or moist air.
Reaktivität anzeigen
A reducing agent. Reacts rapidly and dangerously with oxygen and with other oxidizing agents, even weak ones. Thus, they are likely to ignite on contact with alcohols. Hydrides are incompatible with acids, alcohols, amines, and aldehydes.
Hazard
Flammable, dangerous fire risk. Toxic by ingestion.
Health Hazard
Inhalation or contact with vapors, substance or decomposition products may cause severe injury or death. May produce corrosive solutions on contact with water. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control may cause pollution.
Brandgefahr
Produce flammable gases on contact with water. May ignite on contact with water or moist air. Some react vigorously or explosively on contact with water. May be ignited by heat, sparks or flames. May re-ignite after fire is extinguished. Some are transported in highly flammable liquids. Runoff may create fire or explosion hazard.
Sicherheitsprofil
Poison by ingestion. Burns quietly in air. When heated to decomposition it emits toxic fumes of K2O. See also BORON COMPOUNDS and HYDRIDES.
läuterung methode
Crystallise it from liquid ammonia. It is slowly hydrolysed by H2O. Its solubility at ~20o in H2O or liquid NH3 is 20%, in MeOH it is 0.7%, in Me2NCHO it is 15% and in MeOH/H2O (1:4) it is 13%. [Jons & Wallbridge Progr Inorg Chem 11 99-231 1970.]

Potassium borohydride Upstream-Materialien And Downstream Produkte

13762-51-1, Potassium borohydride Verwandte Suche:

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