Decaboran

Bezeichnung:Decaboran

CAS-Nr17702-41-9

Englisch Name:DECABORANE

CBNumberCB0449450

SummenformelB10H14

Molgewicht122.22

MOL-Datei17702-41-9.mol

Synonyma

Decaboran(14)

Decaboran

Borhydrid

Decaboran physikalisch-chemischer Eigenschaften

Schmelzpunkt	99 °C
Siedepunkt	213 °C
Dichte	0,94 g/cm³
Dampfdruck	0.15 mmHg ( 20 °C)
Flammpunkt	213°C
storage temp.	Flammables area
Löslichkeit	Benzene (Slightly), Chloroform (Sparingly), Ethyl Acetate (Slightly)
Aggregatzustand	white orthorhombic crystals
Farbe	white
Wasserlöslichkeit	Soluble in alcohol, toluene, ethyl acetate and benzene. Slightly soluble in cold water.
Merck	14,2845
Expositionsgrenzwerte	TLV-TWA skin 0.05 ppm (0.25 mg/m³ ) (ACGIH and OSHA); STEL skin 0.15 ppm (0.75 mg/m³ ) (ACGIH); IDLH 20 ppm (NIOSH).
Stabilität	store cold
CAS Datenbank	17702-41-9
EPA chemische Informationen	Decaborane (17702-41-9)

Sicherheit

Kennzeichnung gefährlicher	F,T+
R-Sätze:	5-24/25-26-36/37/38-11
S-Sätze:	16-27-36/37/39-45
RIDADR	1868
OEB	C
OEL	TWA: 0.3 mg/m3 (0.05 ppm), STEL: 0.9 mg/m3 (0.15 ppm) [skin]
WGK Germany	3
RTECS-Nr.	HD1400000
TSCA	Yes
HazardClass	4.1
PackingGroup	II
HS Code	28500020
Giftige Stoffe Daten	17702-41-9(Hazardous Substances Data)
Toxizität	cat,LD50,skin,126mg/kg (126mg/kg),KIDNEY, URETER, AND BLADDER: "CHANGES IN TUBULES (INCLUDING ACUTE RENAL FAILURE, ACUTE TUBULAR NECROSIS)"LIVER: FATTY LIVER DEGERATIONBEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD,"Spravochnik po Toksikologii i Gigienicheskim Normativam Vol. -, Pg. 60, 1999.
IDLA	15 mg/m3

Gefahreninformationscode (GHS)

DECABORANE Chemische Eigenschaften,Einsatz,Produktion Methoden

ERSCHEINUNGSBILD
FARBLOSE BIS WEISSE KRISTALLE MIT STECHENDEM GERUCH.
PHYSIKALISCHE GEFAHREN
Staubexplosion der pulverisierten oder granulierten Substanz in Gemischen mit Luft möglich.
ARBEITSPLATZGRENZWERTE
TLV: 0,05 ppm (als TWA), 0,15 ppm (als STEL); Hautresorption; (ACGIH 2005).
MAK: 0,05 ppm, 0,25 mg/m? Spitzenbegrenzung: überschreitungsfaktor II(2); Hautresorption; (DFG 2005).
AUFNAHMEWEGE
Aufnahme in den Körper durch Inhalation des Aerosols, über die Haut und durch Verschlucken.
INHALATIONSGEFAHREN
Beim Verdampfen bei 20°C kann schnell eine gesundheitsschädliche Kontamination der Luft eintreten.
WIRKUNGEN BEI KURZZEITEXPOSITION
WIRKUNGEN BEI KURZZEITEXPOSITION:
Das Aerosol reizt die Augen, die Haut und die Atemwege. Möglich sind Auswirkungen auf das Zentralnervensystem mit nachfolgender Müdigkeit, übererregbarkeit und Narkose. Die Auswirkungen treten u.U. verzögert ein. ärztliche Beobachtung notwendig.
WIRKUNGEN NACH WIEDERHOLTER ODER LANGZEITEXPOSITION
Möglich sind Auswirkungen auf das Zentralnervensystem mit nachfolgender Müdigkeit, Konzentrations- und lKoordinationsmangel.
LECKAGE
Verschüttetes Material in Behältern sammeln; falls erforderlich durch Anfeuchten Staubentwicklung verhindern. Reste sorgfältig sammeln. An sicheren Ort bringen. Persönliche Schutzausrüstung: Vollschutzanzug mit umgebungsluftunabhängigem Atemschutzgerät.
R-Sätze Betriebsanweisung:
R5:Beim Erwärmen explosionsfähig.
R24/25:Giftig bei Berührung mit der Haut und beim Verschlucken.
R26:Sehr giftig beim Einatmen.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R11:Leichtentzündlich.
S-Sätze Betriebsanweisung:
S16:Von Zündquellen fernhalten - Nicht rauchen.
S27:Beschmutzte, getränkte Kleidung sofort ausziehen.
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).
Beschreibung
Decaborane is a colorless solid with a bitterodor. The odor threshold is 0.06 ppm. Molecularweight = 122.24; Specific gravity (H2O:1) = 0.94; Boilingpoint = 212.7℃; Freezing/Melting point = 99.4℃; Flashpoint = 80℃ (cc); Vapor pressure = 0.2 mmHg at 25℃;Autoignition temperature = 149℃. Hazard Identification(based on NFPA-704 M Rating System): Health 3,Flammability 2, Reactivity 1. Very slightly soluble in coldwater; slowly hydrolyzes. Reacts with hot water.
Chemische Eigenschaften
white powder
Chemische Eigenschaften
Decaborane is a colorless solid with a bitter odor. The Odor Threshold is 0.06 ppm.
Verwenden
It is used in rocket propellants and as acatalyst in olefin polymerization.
Verwenden
In rocket propellants, and as a catalyst in olefin polymerization Boron source for ion-implantation processes.
Verwenden
Decaborane is used as a catalyst in the polymerization of olefins.
Verwenden
In rocket propellants; as catalyst in olefin polymerization.
Allgemeine Beschreibung
White crystals or colorless crystalline needles with an intense, bitter, chocolate-like odor. Used in rocket propellants, as a catalyst in olefin polymerization, as a rubber vulcanizer, to coat metals with corrosion resistant boron, in manufacture of plastics, as an oxygen scavenger; in mothproofing, in dye-stripping, as a reducing and fluxing agent, as a stabilizer and rayon delustrant.
Air & Water Reaktionen
Highly flammable. DECABORANE may spontaneously ignite upon exposure to air. Slightly soluble in cold water [Merck].
Reaktivität anzeigen
DECABORANE forms impact-sensitive mixtures with halocarbons (carbon tetrachloride) or with ethers (dioxane). DECABORANE ignites in oxygen at 100° C. When heated to decomposition DECABORANE emits toxic fumes of boron oxides [Hawthorne, M. F., Inorg. Synth., 1967, 10, p. 93]. DECABORANE may form an explosive mixture with dimethyl sulfoxide [Shriver, 1969, p. 209]. DECABORANE reacts with amides, acetone, butyraldehyde, and acetonitrile at room temperature [Merck].
Health Hazard
May cause death or permanent injury after very short exposure to small quantities. Produces marked irritation of skin and mucous membranes. May cause liver injury.
Health Hazard
Decaborane is a highly toxic compoundby all routes of administration. Its toxicityis somewhat greater than that of diborane.The acute toxic symptoms in humans frominhalation of its vapors could be headache,nausea, vomiting, dizziness, and lightheadedness.In severe poisoning, muscle spasmand convulsion may occur. Symptoms of toxicitymay appear 1 or 2 days after exposure,and the recovery is slow. An LC50value for mice from a 40- hour exposure was12 ppm.
Ingestion can cause spasm, tremor, andconvulsion. It can be absorbed through theskin, producing drowsiness and loss of coordination.Toxic effects from skin absorption,however, are relatively moderate.
LD₅₀ value, oral (mice): 41 mg/kg
LD₅₀ value, skin (rats): 740 mg/kg
.
Brandgefahr
DECABORANE mixed with carbon tetrachloride is dangerously shock sensitive. DECABORANE reacts slowly with air but when mixed with air or oxygen, DECABORANE becomes highly flammable and may explode. DECABORANE undergoes an explosive reaction with most oxidizing agents including halogenated hydrocarbons. DECABORANE may give off toxic fumes of unburned material. When heated to decomposition, DECABORANE emits toxic fumes of boron oxides. Incompatible with ethers; halocarbons; oxygen at 212F; dimethyl sulfoxide, most oxidizing agents, including halogenated hydrocarbons. DECABORANE is corrosive to natural rubber, some synthetic rubbers, some greases, and some lubricants. Normally stable, but becomes unstable at elevated temperature and pressure. Hazardous polymerization may not occur.
Sicherheitsprofil
Poison by inhalation, ingestion, sktn contact, and intraperitoneal routes. Ignites in O2 at 100°C. Forms impact-sensitive explosive mixtures with ethers (e.g., dioxane) and halocarbons (e.g., carbon tetrachloride). Incompatible with dimethyl sulfoxide. When heated to decomposition it emits toxic fumes of boron oxides. See also BORON COMPOUNDS and BORANES.
mögliche Exposition
Decaborane is used as a catalyst in olefin polymerization; in rocket propellants; in gasoline additives and as a vulcanizing agent for rubber.
Erste Hilfe
If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least15 min, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts theskin, remove contaminated clothing and wash immediatelywith soap and water. Seek medical attention immediately. Ifthis chemical has been inhaled, remove from exposure,begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPRif heart action has stopped. Transfer promptly to a medicalfacility. When this chemical has been swallowed, get medical attention. Give large quantities of water and inducevomiting. Do not make an unconscious person vomit.
Lager
(1) Color Code—Red: Flammability Hazard: Storein a flammable materials storage area. (2) Color Code—Blue: Health Hazard/Poison: Store in a secure poison location. Prior to working with decaborane you should betrained on its proper handling and storage. Decaboranemust be stored to avoid contact with oxidizers, such as permanganates, nitrates, peroxides, chlorates, and perchlorates,or halogenated compounds, since violent reactions occur.Store in tightly closed containers in a cool, well-ventilatedarea away from heat and water. Heat can cause an explosion. Contact with water can slowly produce flammablehydrogen gas. Detached storage is preferable. Sources ofignition, such as smoking and open flames, are prohibitedwhere decaborane is handled, used, or stored.
Versand/Shipping
UN1868 Decaborane, Hazard Class: 4.1; Labels: 4.1-Flammable solid, 6.1-Poisonous materials
läuterung methode
Purify decaborane by vacuum sublimation at 80o/0.1mm, followed by crystallisation from methylcyclohexane, CH2Cl2, or dry olefin-free-n-pentane, the solvent being subsequently removed by storing the crystals in a vacuum desiccator containing CaCl2. It is soluble in H2O but is slowly decomposed to give H2. It is soluble in alkali, and on acidification it liberates H2. TOXIC. [Greenwood in Comprehensive Chemistry (Ed Bailar et al.) Pergamon Press Vol 1 pp 818-837 1973.]
Inkompatibilitäten
May ignite spontaneously on exposure to air. Decomposes slowly in hot water. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanga- nates, perchlorates, chlorine, bromine, fluorine, etc.); con- tact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides, and oxygenated solvents; dimethyl sulfoxide (reaction may be violent), oxygen @ .100 C). Carbon tetrachloride, ethers, halocarbons, halogenated com- pounds form shock-sensitive mixtures. Attacks some plas- tics, rubber, and coatings.
Waste disposal
Incineration with aqueous scrubbing of exhaust gases to remove B2O3 particulates.

17702-41-9, DECABORANE Verwandte Suche:

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