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Boron sulfide
Names
IUPAC name
Boron sulfide
Other names
Boron sesquisulfide, Diboron trisulfide
Identifiers
CAS Number
3D model (JSmol )
ECHA InfoCard 100.031.355
EC Number
PubChem CID
CompTox Dashboard (EPA )
Key: ZVTQDOIPKNCMAR-UHFFFAOYSA-N
Properties
Chemical formula
B 2 S 3
Molar mass
117.80 g/mol
Appearance
colorless crystals
Density
1.55 g/cm3
Melting point
563 °C (1,045 °F; 836 K )
Boiling point
decomposes at high T
Solubility in water
decomposes
Solubility
soluble in ammonia
Structure
Crystal structure
monoclinic , mP40 , SpaceGroup = P21
Coordination geometry
B: planar, sp2
Thermochemistry
Heat capacity (C
111.7 J/mol K
Std molar (S ⦵ 298 )
327 J/mol K
Std enthalpy of (Δf H ⦵ 298 )
-240.6 kJ/mol
Hazards
Occupational safety and health
Main hazards
source of H2 S
GHS labelling
Pictograms
Signal word
Danger
Hazard statements
H225 , H260 , H301 , H311 , H315 , H318 , H335
Precautionary statements
P210 , P223 , P231+P232 , P280 , P302+P352 , P303+P361+P353 , P305+P351+P338 , P312 , P402+P404 , P405
NFPA 704
Flash point
18°C (64.4°F)
Safety data sheet (SDS)
trc-canada.com
Related compounds
Related compounds
BCl3 Lawesson's reagent
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Chemical compound
Boron sulfide is the chemical compound with the formula B 2 S 3 moisture-sensitive solid. It has a polymeric structure. The material has been of interest as a component of "high-tech" glasses and as a reagent for preparing organosulfur compounds.
Reactions [ edit ]
Like the sulfides of silicon and phosphorus, B2 S 3 H 2 S
B 2 S 3 2 2 O 3 2 S
B 2 S 3 glasses when blended with other sulfides such as P 4 S 10 Infra-red energy relative to conventional borosilicate glasses. Some of these ternary phases that are fast ion conductors.[2]
B 2 S 3 ketones into the corresponding thiones . For example, the conversion of benzophenone to its thione proceeds as follows:
B 2 S 3 C 6 H 5 2 2 O 3 C 6 H 5 2
In practice, B2 S 3 [3]
Synthesis [ edit ]
An early synthesis involved the reaction of iron and manganese borides with hydrogen sulfide at temperatures of 300 °C. The conversion is shown for the monoborides in the following idealized equation:[4]
2 FeB + 4 H2 2 S 3 2
The first synthesis was done by Jöns Jakob Berzelius in 1824 by direct reaction of amorphous boron with sulfur vapor.[5]
2 B + 3 S → B2 S 3
Another synthesis was favoured by Friedrich Wöhler and Henri Etienne Sainte-Claire Deville first published in 1858, starting from boron and hydrogen sulfide .[6] [7]
2 B + 3 H2 2 S 3 2
Structure [ edit ]
The boron atoms in B2 S 3 3 S 3 2 S 2 boron trioxide which has a three dimensional structure.[8] 2 S 3 [8]
References [ edit ]
^ Sato, R. (2004). "Boron Trisulfide". In L. Paquette (ed.). Encyclopedia of Reagents for Organic Synthesis . New York: J. Wiley & Sons. doi :10.1002/047084289X.rb255 . ISBN 0471936235
^ Hoffmann, J. (1908). "Synthese von Borsulfid aus Ferro- und Manganbor" . Zeitschrift für anorganische Chemie . 59 1 ): 127–135. doi :10.1002/zaac.19080590116 .
^ Berzelius, J. (1824). "Undersökning af flusspatssyran och dess märkvärdigaste föreningar" [Investigation of hydrofluoric acid and of its most noteworthy compounds]. Kongliga Vetenskaps-Academiens Handlingar [Proceedings of the Royal Science Academy] . 12 Berzelius, J. J. (1824). "Untersuchungen über die Flußspathsäure und deren merkwürdigsten Verbindungen" . Annalen der Physik und Chemie 78 10 ): 113–150. Bibcode :1824AnP....78..113B . doi :10.1002/andp.18240781002 .
^ Wöhler, F. ; Deville, H. E. S.-C. (1858). "Neue Beobachtungen über das Bor und einige seiner Verbindungen" [New observations concerning boron and some of its compounds]. Liebigs Annalen der Chemie und Pharmacie 105 (1 ): 67–73. doi :10.1002/jlac.18581050109 .
^ Wöhler, F. ; Deville, H. E. S.-C. (1858). "Du Bore" . Annales de Chimie et de Physique 52
^ a b Greenwood, Norman N. ; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann . ISBN 978-0-08-037941-8
R e t r i e v e d f r o m " https://en.wikipedia.org/w/index.php?title=Boron_sulfide&oldid=1184689434 " C a t e g o r i e s : ● B o r o n c o m p o u n d s ● S e s q u i s u l f i d e s H i d d e n c a t e g o r i e s : ● A r t i c l e s w i t h o u t I n C h I s o u r c e ● C h e m i c a l p a g e s w i t h o u t C h e m S p i d e r I D ● A r t i c l e s w i t h o u t E B I s o u r c e ● A r t i c l e s w i t h o u t K E G G s o u r c e ● A r t i c l e s w i t h o u t U N I I s o u r c e ● E C H A I n f o C a r d I D f r o m W i k i d a t a ● C h e m b o x h a v i n g G H S d a t a ● A r t i c l e s c o n t a i n i n g u n v e r i f i e d c h e m i c a l i n f o b o x e s ● A r t i c l e s w i t h s h o r t d e s c r i p t i o n ● S h o r t d e s c r i p t i o n m a t c h e s W i k i d a t a
● T h i s p a g e w a s l a s t e d i t e d o n 1 2 N o v e m b e r 2 0 2 3 , a t 0 0 : 5 3 ( U T C ) . ● T e x t i s a v a i l a b l e u n d e r t h e C r e a t i v e C o m m o n s A t t r i b u t i o n - S h a r e A l i k e L i c e n s e 4 . 0 ;
a d d i t i o n a l t e r m s m a y a p p l y . B y u s i n g t h i s s i t e , y o u a g r e e t o t h e T e r m s o f U s e a n d P r i v a c y P o l i c y . W i k i p e d i a ® i s a r e g i s t e r e d t r a d e m a r k o f t h e W i k i m e d i a F o u n d a t i o n , I n c . , a n o n - p r o f i t o r g a n i z a t i o n . ● P r i v a c y p o l i c y ● A b o u t W i k i p e d i a ● D i s c l a i m e r s ● C o n t a c t W i k i p e d i a ● C o d e o f C o n d u c t ● D e v e l o p e r s ● S t a t i s t i c s ● C o o k i e s t a t e m e n t ● M o b i l e v i e w
