CAS No.7782-65-2,Germane Suppliers,MSDS download

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Basic Information

Molecular Structure:
CAS No.:	7782-65-2
Name:	Germane
Article Data:	68

Formula:	GeH4
Molecular Weight:	76.6218
Synonyms:	Germaniumhydride (GeH4) (6CI); Germanium tetrahydride; Germanium(4+) hydride;Monogermane; Tetrahydrogermane
EINECS:	231-961-6
Density:	1,53 g/cm3
Melting Point:	-165°C
Boiling Point:	-88°C
Solubility:	Insoluble IN WATER
Appearance:	Colorless
Hazard Symbols:	Toxic material. TLV: 0.2 ppm.
Risk Codes:	17-21/22-23-26-22-12
Safety:	Poison by inhalation. Moderately toxic by ingestion. A hemolytic gas. Ignites spontaneously in air. Incompatible with Br₂. See also HYDRIDES, GERMANIUM COMPOUNDS, and GERMANIUM.
Transport Information:	2192
PSA:	0.00000
LogP:	0.06920

Synthetic route

tetracarbonyl(trimethylgermyl)germyliron: tetracarbonyl(trimethylgermyl)germyliron

A: 7782-65-2
germane

B: 121981-68-8
[Fe2(μ-GeH2)2(CO)8]

C: 1449-63-4
trimethylgermane

Conditions

Conditions	Yield
In neat (no solvent) allowed to stand in the dark for 64 h at ambient temp.; identified spectroscopically;	A n/a B 102 % C 91%
In benzene 30 min at 7°C, allowed to warm to 17°C, after 1 h allowed to procced at room temp., reaction time: 170 d; followed by (1)H-NMR;

...Expand

: 16940-66-2
sodium tetrahydroborate

: germanium dioxide

: 7782-65-2
germane

Conditions

Conditions	Yield
In hydrogen bromide according to T.S. Piper, M.K. Wilson, J. Inorg. Nucl. Chem., 4, 22 (1957) and J.E.Griffiths, Inorg. Chem., 2, 375 (1963); collected into -134°C trap, purified by passing through a columnwith silica gel and mol. sieve 5A at -30 °C, detd. by chromy. and mass spectrometric analysis;	90%

: 13637-65-5
chlorogermane

: 24331-65-5
bis(difluorophosphino) sulphide

A: 7782-65-2
germane

B: 39491-87-7
difluoro(germylthio)phosphine

C: 14335-40-1
chlorodifluorophosphine

D: 13780-63-7
difluorophosphine sulfide

Conditions

Conditions	Yield
mixt. was warmed to 209 K for 2 h; examined by NMR, sepd. by fractional condensation;	A <1 B 87% C n/a D <1

...Expand

: 779289-35-9
tetracarbonylgermyliron(1-)

: 1529-47-1
chlorotrimethylgermane

A: 7782-65-2
germane

: 121981-67-7
tetracarbonyl(trimethylgermyl)germyliron

C: 121981-68-8
[Fe2(μ-GeH2)2(CO)8]

D: 1449-63-4
trimethylgermane

Conditions

Conditions	Yield
In diethyl ether under N2, 30 min; pumping for 3 h at diffusion pump vacuum, extn. (cyclohexane): ((Fe(CO)4(GeH2))2);	A n/a B 23% C 58% D n/a

...Expand

: 16853-85-3
lithium aluminium tetrahydride

: 10038-98-9
germaniumtetrachloride

: 7782-65-2
germane

Conditions

Conditions	Yield
In solid matrix byproducts: LiCl, AlCl3; distilling gaseous GeCl4 in vac. on solid matrix of LiAlH4 in ether (cooled with liq. N2), heating to room temp.;; fractional condensation at -111.9 °C;;	27.7%
In solid matrix byproducts: LiCl, AlCl3; distilling gaseous GeCl4 in vac. on solid matrix of LiAlH4 in ether (cooled with liq. N2), heating to room temp.;; fractional condensation at -111.9 °C;;	27.7%

: 13450-95-8
germanium (IV) iodide

: 7580-67-8
lithium hydride

A: 7782-65-2
germane

B: 1333-74-0
hydrogen

Conditions

Conditions	Yield
In solid byproducts: Ge, LiI; mechanically acivated interaction in vac. vibrating ball mill, accordingto: V. V. Volkov, K. G. Myakishev, I. I. Gorbacheva, Izv. Sib. Otd. Aka d. Nauk SSSR, Ser. Khim. Nauk, 5 (1983) No. 12, p. 79; monitored by volumetric anal., IR spectroscopy, chem. anal.;	A 1% B n/a

...Expand

: 16940-66-2
sodium tetrahydroborate

: germanium dioxide

A: 7440-56-4
germanium

B: 7782-65-2
germane

Conditions

Conditions	Yield
In hydrogen bromide in dild. aq. HBr soln.;
In hydrogen bromide aq. HBr; in dild. aq. HBr soln.;

...Expand

: 13573-02-9
germyl iodide

: 20667-12-3
silver(l) oxide

: 7782-65-2
germane

Conditions

Conditions	Yield
byproducts: H2O;
byproducts: H2O;

: 14694-31-6
germanium (II) iodide

: 20667-12-3
silver(l) oxide

: 7782-65-2
germane

Conditions

Conditions	Yield
byproducts: H2O;
byproducts: H2O;

: 16940-66-2
sodium tetrahydroborate

: 10038-98-9
germaniumtetrachloride

: 7782-65-2
germane

Conditions

Conditions	Yield
In tetrahydrofuran
In water
In water

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Chemistry

Molecular Structure:

Molecular Formula: H₄Ge
Molecular Weight: 76.6718
IUPAC Name: Germane
Synonyms of Germane (CAS NO.7782-65-2): EINECS 231-961-6 ; Germanium hydride ; Germanium tetrahydride ; Monogermane ; Germane [UN2192] [Poison gas] ; UN2192
CAS NO: 7782-65-2
Classification Code: TWA (0.2 ppm)
Melting point: -165°C
Boiling Point: -88°C
Density: 1,53 g/cm³
Merck: 13,4418

Uses

Germane (CAS NO.7782-65-2) is used in the semiconductor industry for the epitaxial growth of germanium by MOVPE or chemical beam epitaxy.[5] Organogermanium precursors (e.g. isobutylgermane, alkylgermanium trichlorides, and dimethylaminogermanium trichloride) have been examined as less hazardous liquid alternatives to germane for deposition of Ge-containing films by MOVPE.[6]

Production

A typical synthesis involved the reaction of Na₂GeO₃ with sodium borohydride.
Na₂GeO₃ + NaBH₄ + H₂O → GeH₄ + 2 NaOH + NaBO₂

Toxicity Data With Reference

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
mouse	LC₅₀	inhalation	1380mg/m3 (1380mg/m3)	BEHAVIORAL: EXCITEMENT BEHAVIORAL: ATAXIA BEHAVIORAL: MUSCLE CONTRACTION OR SPASTICITY)	Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 18(2), Pg. 56, 1974.
mouse	LD₅₀	oral	1250mg/kg (1250mg/kg)	BEHAVIORAL: EXCITEMENT BEHAVIORAL: ATAXIA BEHAVIORAL: MUSCLE CONTRACTION OR SPASTICITY)	Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 18(2), Pg. 56, 1974.

Consensus Reports

Reported in EPA TSCA Inventory.

Safety Profile

Hazard Codes of Germane (CAS NO.7782-65-2): F Toxic T
Risk Statements: 17-21/22-23
R17: Spontaneously flammable in air.
R21/22: Harmful in contact with skin and if swallowed.
R23: Toxic by inhalation.
Safety Statements: 16-24-26-36/37/39-45
S16: Keep away from sources of ignition.
S24: Avoid contact with skin.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37/39: Wear suitable protective clothing, gloves and eye/face protection.
S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
RIDADR: 2192
RTECS: LY4900000
TSCA: Yes
HazardClass: 2.3
Poison by inhalation. Moderately toxic by ingestion. A hemolytic gas. Ignites spontaneously in air. Incompatible with Br₂. See also HYDRIDES, GERMANIUM COMPOUNDS, and GERMANIUM.

Standards and Recommendations

ACGIH TLV: TWA 0.2 ppm
DOT Classification: 2.3; Label: Poison Gas, Flammable Gas