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| CAS No.: | 506-68-3 |
|---|---|
| Name: | Cyanogen bromide |
| Article Data: | 107 |
| Molecular Structure: | |
|
|
|
| Formula: | CBrN |
| Molecular Weight: | 105.922 |
| Synonyms: | Cyanogenbromide (8CI);Bromine cyanide;Bromine cyanide (BrCN);Bromine monocyanide;Bromocyan;Bromocyanide;Bromocyanide (BrCN);Bromocyanogen;Campilit;Cyanobromide;Cyanogen bromide (BrCN);Cyanogen monobromide;NSC 89684; |
| EINECS: | 208-051-2 |
| Density: | 2.052 g/cm3 |
| Melting Point: | 50-53 °C(lit.) |
| Boiling Point: | 61.5 °C at 760 mmHg |
| Flash Point: | 61.4°C |
| Solubility: | decomposed slowly by cold H2O [HAW93] |
| Appearance: | white crystalline solid |
| Hazard Symbols: |
 T+, N, F, C
|
| Risk Codes: | 26/27/28-34-50/53-40-11-36/37 |
| Safety: | 53-28-36/37/39-45-60-61-26-16-7/9 |
| Transport Information: | UN 3390 6.1/PG 1 |
| PSA: | 23.79000 |
| LogP: | 0.86238 |
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| Conditions | Yield |
|---|---|
| With sodium hydroxide; sodium perchlorate In water Kinetics; Rapid addn. of thermostated aq. NaOBr soln. to aq. NaClO4 soln. contg. SCN(1-) and NaOH, 293-313 K; Monitored by iodometric estimation of unreacted OBr(1-), react. mechanism discussed.; | A 94% B n/a C 95% |
- 302-04-5
Thiocyanate
- 7732-18-5
water
A
- 506-68-3
bromocyane
B
- 10097-32-2
bromide
C
- 14808-79-8
Sulfate
D
- 70-55-3
toluene-4-sulfonamide
| Conditions | Yield |
|---|---|
| With sodium hydroxide; sodium perchlorate In water Kinetics; Rapid addn. of thermostated aq. bromamine-T soln. to aq. NaClO4 soln. contg. SCN(1-) and NaOH, 303 K; Monitored by iodometric estimation of unreacted bromamin-T, react. mechanism discussed.; | A 94% B n/a C 95% D n/a |
- 7732-18-5
water
- 333-20-0
potassium thioacyanate
- 41085-71-6
bromamine T
A
- 506-68-3
bromocyane
B
- 10097-32-2
bromide
C
- 14808-79-8
Sulfate
D
- 70-55-3
toluene-4-sulfonamide
| Conditions | Yield |
|---|---|
| With sodium hydroxide; sodium perchlorate In water Kinetics; Rapid addn. of thermostated aq. bromamine-T soln. to aq. NaClO4 soln. contg. SCN(1-) and NaOH, 303 K; Monitored by iodometric estimation of unreacted bromamin-T, react. mechanism discussed.; | A 94% B n/a C 95% D n/a |
| Conditions | Yield |
|---|---|
| With sodium hydroxide; sodium perchlorate In water Kinetics; Rapid addn. of thermostated aq. NaOBr soln. to aq. NaClO4 soln. contg. SCN(1-) and NaOH, 293-313 K; Monitored by iodometric estimation of unreacted OBr(1-), react. mechanism discussed.; | A 94% B n/a C 95% |
- 128-08-5
N-Bromosuccinimide
- 1600-27-7
mercury(II) diacetate
- 333-20-0
potassium thioacyanate
A
- 123-56-8
Succinimide
B
- 506-68-3
bromocyane
C
- 10097-32-2
bromide
D
- 14808-79-8
Sulfate
| Conditions | Yield |
|---|---|
| With sodium hydroxide In methanol; water Kinetics; oxidation of SCN(1-) by NBS in aq. methanol in presence of mercuric acetate and NaOH at 303 K; gravimetric and iodometric methods; | A n/a B 94% C n/a D 94% E n/a |
| With perchloric acid In methanol; water Kinetics; oxidation of SCN(1-) by NBS in aq. methanol in presence of mercuric acetate and HClO4 at 273 K; gravimetric and iodometric methods; | A n/a B 94% C n/a D 94% E n/a |
| Conditions | Yield |
|---|---|
| In water Electrolysis; potential: 3.2 V;current density:929 A/dm2; molar ratio: 1-1; | 89% |
- 773837-37-9
sodium cyanide
- 506-68-3
bromocyane
| Conditions | Yield |
|---|---|
| With bromine In water | 89% |
| Stage #1: sodium cyanide With hydrogenchloride In water at 0 - 5℃; for 0.166667h; Stage #2: With bromine In water at 0 - 5℃; for 1.3h; pH=< 7; Time; | |
| With bromine In water at -5 - 5℃; | |
| With bromine In methanol at 1℃; for 0h; Inert atmosphere; |
- 506-68-3
bromocyane
| Conditions | Yield |
|---|---|
| With bromine; potassium bromide In water at 0 - 5℃; for 0.0866667h; Flow reactor; | 72% |
- 289-82-7
2H-1,2-oxazine
- 1415915-00-2
(S)-3-amino-2,2,4-trifluoro-3-(2-fluoro-phenyl)-butan-1-ol
A
- 506-68-3
bromocyane
B
- 1415915-01-3
(S)-5,5-difluoro-4-fluoromethyl-4-(2-fluoro-phenyl)-5,6-dihydro-4H-[1,3]oxazin-2-ylamine
| Conditions | Yield |
|---|---|
| A n/a B 41% |
| Conditions | Yield |
|---|---|
| With ethanol |
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Chemistry
IUPAC Name:Carbononitridic bromide
Molecular Formula:CBrN
Formula Weight:105.92g/mol
Storage temp.:0-6°C
Density:1.443 g/mL at 25 °C
Melting Point:50-53 °C(lit.)
Boiling Point:61-62 °C(lit.)
Index of Refraction:1.467
Flash point:61.4°C
Vapor Pressure:100 mm Hg ( 22.6 °C)
EINECS:208-051-2
Molar Refractivity:14.32cm3
Molar Volume:51.6cm3
Polarizability:5.67 10-24cm3
Surface Tension:43.2dyne/cm
Enthalpy of Vaporization:30.39kJ/mol
Stability: Stable. Reacts violently with water and with mineral and organic acids
Synonyms of Cyanogen bromide (506-68-3) :(CN)Br;BrCN;Bromine cyanide(BrCN);Bromine monocyanide;brominecyanide(brcn);Bromocyanide(BrCN);Bromocyanogen;Bromure de cyanogen
Product Categories of Cyanogen bromide (506-68-3):Inorganics;C1 to C5;Cyanides/Nitriles;Nitrogen Compounds
Structure of Cyanogen bromide (506-68-3):
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Uses
It can be used as microbicides and military poison,and also can be used in the preparation of cyanide and organic synthesis.
Toxicity Data With Reference
| 1. | ihl-hmn LCLo:92 ppm/10M | NTIS** National Technical Information Service. (Springfield, VA 22161) (Formerly U.S. Clearinghouse for Scientific and Technical Information) PB214-270 . | ||
| 2. | ihl-mus LCLo:500 mg/m3/10M | NDRC** National Defense Research Committee, Office of Scientific Research and Development, Progress Report No. 9-4-1-9 ,1943. |
Hazard Codes T+,N,F,C .gif){kind=small}
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Risk Statements 26/27/28-34-50/53-40-11-36/37
26/27/28: Very Toxic by inhalation, in contact with skin and if swallowed
34: Causes burns
50/53: Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment
40: Limited evidence of a carcinogenic effect
11: Highly Flammable
36/37: Irritating to eyes and respiratory system
Safety Statements 53-28-36/37/39-45-60-61-26-16-7/9
53: Avoid exposure - obtain special instruction before use
28: After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer)
36/37/39: Wear suitable protective clothing, gloves and eye/face protection
45: In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)
60: This material and/or its container must be disposed of as hazardous waste
61: Avoid release to the environment. Refer to special instructions safety data sheet
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
16: Keep away from sources of ignition - No smoking
7/9: Keep container tightly closed and in a well-ventilated place
Consensus Reports
Cyanide and its compounds are on the Community Right-To-Know List. EPA Extremely Hazardous Substances List. Reported in EPA TSCA Inventory.
Safety Profile
Standards and Recommendations
DOT Classification: 6.1; Label: Poison, Corrosive
Specification
Cyanogen bromide is a colorless to white crystalline solid with a penetrating odor. Cyanogen bromide is slightly soluble in water. Cyanogen bromide is gradually decomposed by water and very rapidly by acids to give off hydrogen bromide, a flammable and poisonous gas. Contamination with many materials can cause rapid decomposition of the material. Cyanogen bromide is toxic by inhalation of its vapors or by the hydrogen cyanide from decomposition or by ingestion. Toxic oxides of nitrogen are produced in fire involving Cyanogen bromide. Cyanogen bromide is used in gold extraction, to make other chemicals, and as a fumigant.