Barium hydroxide monohydrate

Bezeichnung:Barium hydroxide monohydrate

CAS-Nr22326-55-2

Englisch Name:Barium hydroxide monohydrate

CBNumberCB4318493

SummenformelBaH4O3

Molgewicht189.36

MOL-Datei22326-55-2.mol

Barium hydroxide monohydrate physikalisch-chemischer Eigenschaften

Schmelzpunkt	78 °C(lit.)
Dichte	3.743 g/mL at 25 °C(lit.)
Dampfdruck	300 hPa ( 78 °C)
Löslichkeit	soluble in acid solutions
Aggregatzustand	Crystalline
Farbe	White
Wasserlöslichkeit	Soluble in water.
Sensitive	Air Sensitive & Hygroscopic
Expositionsgrenzwerte	ACGIH: TWA 0.5 mg/m3 NIOSH: IDLH 50 mg/m3; TWA 0.5 mg/m3
InChIKey	GKQTUHKAQKWLIN-UHFFFAOYSA-L
CAS Datenbank	22326-55-2(CAS DataBase Reference)
EPA chemische Informationen	Barium hydroxide (Ba(OH)2), monohydrate (22326-55-2)

Sicherheit

Kennzeichnung gefährlicher	C
R-Sätze:	20/22-34
S-Sätze:	26-36/37/39-45-28
RIDADR	UN 3262 8/PG 3
WGK Germany	1
RTECS-Nr.	CQ9200000
F	3-9-34
HazardClass	8

Gefahreninformationscode (GHS)

Barium hydroxide monohydrate Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R20/22:Gesundheitsschädlich beim Einatmen und Verschlucken.
R34:Verursacht 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).
S28:Bei Berührung mit der Haut sofort abwaschen mit viel . . . (vom Hersteller anzugeben).
Chemische Eigenschaften
white powder(s); formed when barium hydroxide octahydrate is “boiled dry” in CO2 free atmospheric; used in manufacturing oil and grease additives, soaps, and in refining beet sugar [KIR78] [MER06] [HAW93]
Verwenden
Barium hydroxide monohydrate is used in water purification. It is used to prepare lubricating and oil additives as well as a precursor to other barium compounds. It is also used to dehydrate and remove sulfate from various products.
Allgemeine Beschreibung
Barium hydroxide monohydrate is a white powder. Barium hydroxide monohydrate is slightly soluble in water. Barium hydroxide monohydrate is corrosive to metals and tissue. Barium hydroxide monohydrate is used in water purification, to make lubricating and oil additives, to make barium containing chemicals and for many other uses.
Air & Water Reaktionen
The amount of heat generated by hydrolysis may be large. Slightly soluble in water.
Reaktivität anzeigen
Barium hydroxide monohydrate reacts similarly to sodium hydroxide (NaOH), but is less soluble in water. Neutralizes acids exothermically to form salts plus water. Can react with aluminum and zinc to form oxides or hydroxides of the metal and generate gaseous hydrogen. May initiate polymerization reactions in polymerizable organic compounds, especially epoxides. May generate flammable and/or toxic gases with ammonium salts, nitrides, halogenated organics, various metals, peroxides, and hydroperoxides. Intimate mixtures with chlorinated rubber have when heated been explosive during the milling process [ABCM Quart. Safety Summ., 1963, 34, 12].
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.

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