Natriumacetylid

Bezeichnung:Natriumacetylid

CAS-Nr1066-26-8

Englisch Name:SODIUM ACETYLIDE

CBNumberCB2455464

SummenformelC2HNa

Molgewicht48.02

MOL-Datei1066-26-8.mol

Synonyma

Natriumacetylid

Natriumacetylid physikalisch-chemischer Eigenschaften

Siedepunkt	-22.2°C
Dichte	0,865 g/cm³
Flammpunkt	85 °F
storage temp.	Refrigerator (+4°C) + Flammables area
Aggregatzustand	Low Melting Solid or Crystalline Powder
Farbe	White to pale yellow
Wasserlöslichkeit	Reacts with water.
Sensitive	Air & Moisture Sensitive
BRN	3587232
CAS Datenbank	1066-26-8(CAS DataBase Reference)
EPA chemische Informationen	Sodium acetylide (1066-26-8)

Sicherheit

Kennzeichnung gefährlicher	F,Xn,C
R-Sätze:	10-15-20/21-38-34-14/15
S-Sätze:	36/37-43-45-36/37/39-26
RIDADR	UN 3399 4.3/PG 1
WGK Germany	3
TSCA	Yes
HazardClass	4.3
PackingGroup	II
HS Code	29310099

Gefahreninformationscode (GHS)

SODIUM ACETYLIDE Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R10:Entzündlich.
R15:Reagiert mit Wasser unter Bildung hochentzündlicher Gase.
R20/21:Gesundheitsschädlich beim Einatmen und bei Berührung mit der Haut.
R38:Reizt die Haut.
S-Sätze Betriebsanweisung:
S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.
S43:Zum Löschen . . . (vom Hersteller anzugeben) verwenden (wenn Wasser die Gefahr erhöht, anfügen: "Kein Wasser verwenden").
Beschreibung
Sodium acetylide is an unstable powder, a salt of acetylene. It is a severe explosion risk when shocked or heated. It is used in the manufacture of detonators.
Chemische Eigenschaften
brown slurry
Verwenden
Sodium acetylide suspension has been used in the preparation of: 2-ethynyladamantan-2-ol1 apical-equatorial (ae) isomer of (Et4N)3[1-(2′-B10H9)-2-NH3B10H8]2 trimethylsilylacetylene3
Verwenden
Sodium Acetylide Suspension is a reagent used in the synthesis of rhodium(I) amidinate complexes.
Definition
ChEBI: The salt formed from the acetylide monoanion and a single sodium cation.
läuterung methode
It sometimes contains diluents, e.g. xylene, butyl ether or dioxane which can be removed by filtration followed by a vacuum at 65-60o/5mm. Alternatively the acetylide is purged with HCCH at 100-125o to remove diluent. NaC2H adsorbs 2.2x, 2.0x and 1.6x its wt of xylene, butyl ether and dioxane, respectively. Powdered NaC2H is yellow or yellow-gray in colour and is relatively stable. It can be heated to ca 300o in the absence of air. Although no explosion or evolution of gas occurs, it turns brown due to disproportionation. At 170-190o in air it ignites slowly and burns smoothly. At 215-235o in air it “flash-ignites” and burns quickly. It can be dropped into a slight excess of H2O without flashing or burning, but vigorous evolution of HC CH (HIGHLY FLAMMABLE IN AIR) occurs. The sample had been stored in the absence of air for one year without deterioration. Due to the high flammability of HCCH, the salt should be stored dry and should be treated with care. After long storage, NaCCH can be redissolved in liquid NH3 and used for the same purposes as the fresh material. However it may be slightly turbid due to the presence of moisture. [Rutledge J Org Chem 22 649 1957, Greenlee & Henne J Am Chem Soc 77 5013 1955, Campbell & Campbell Inorg Synth II 76, 81 1946, Org Synth 30 15 1950, Beilstein 1 H 238.] It is available commercially under N2 in Sure/Seal bottles as an 18 wt% solution in xylene/mineral oil. See “Aliphatic Compounds”, Chapter 4, for its prepartion.

SODIUM ACETYLIDE Upstream-Materialien And Downstream Produkte

Natriumacetylid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

1066-26-8, SODIUM ACETYLIDE Verwandte Suche:

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