Name | 2-Bromobutane |
Synonyms | 2-BROMOBUTANE 2-Bromobutane 2-bromo butane S-BUTYL BROMIDE sec-Butyl bromide SEC-BUTYL BROMIDE (2R)-2-bromobutane BROMOBUTANE, 2-(SG) 2-BROMOBUTANE,REAGENT 1-BROMO-1-METHYLPROPANE 2-Bromobutane sec-Butylbromide |
CAS | 78-76-2 |
EINECS | 201-140-7 |
InChI | InChI=1/C4H9Br/c1-3-4(2)5/h4H,3H2,1-2H3/t4-/m1/s1 |
InChIKey | UPSXAPQYNGXVBF-UHFFFAOYSA-N |
Molecular Formula | C4H9Br |
Molar Mass | 137.02 |
Density | 1.255g/mLat 25°C(lit.) |
Melting Point | -112 °C |
Boling Point | 91°C(lit.) |
Flash Point | 70°F |
Water Solubility | insoluble |
Solubility | <1g/l |
Vapor Presure | 70 hPa (20 °C) |
Appearance | Liquid |
Color | Clear colorless to yellow-brown |
Merck | 14,1554 |
BRN | 505949 |
Storage Condition | Store at +2°C to +8°C. |
Stability | Stable. Flammable. Incompatible with strong oxidizing agents. |
Explosive Limit | 2.6-6.6%(V) |
Refractive Index | n20/D 1.4369(lit.) |
Physical and Chemical Properties | Colorless transparent liquid. Melting Point -111.9 ℃, boiling point of 91.2 ℃, relative density of 1.2585(20/4 ℃), refractive index of 1.4366. Flash point 21 ℃. Miscible with acetone and benzene, soluble in chloroform, insoluble in water. Aromatic odor. |
Use | Used as a solvent, but also for organic synthesis |
Risk Codes | R11 - Highly Flammable R36/37/38 - Irritating to eyes, respiratory system and skin. R10 - Flammable R52 - Harmful to aquatic organisms |
Safety Description | S16 - Keep away from sources of ignition. S23 - Do not breathe vapour. S24/25 - Avoid contact with skin and eyes. S37/39 - Wear suitable gloves and eye/face protection S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
UN IDs | UN 2339 3/PG 2 |
WGK Germany | 2 |
RTECS | EJ6228000 |
TSCA | Yes |
HS Code | 29033036 |
Hazard Note | Irritant/Highly Flammable |
Hazard Class | 3 |
Packing Group | II |
LogP | 3 at 35℃ and pH7 |
NIST chemical information | information provided by: webbook.nist.gov (external link) |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Use | organic synthesis intermediates. Solvent. When the concentration of this product in the air is high, it has anesthetic effect. used as solvent, also used in organic synthesis |
production method | results from reaction of SEC-butanol with hydrogen bromide in the presence of sulfuric acid. The concentrated sulfur is slowly added into hydrobromic acid and mixed, then sec-Butanol is added, Reflux reaction is carried out for 2-3H, the bromide is distilled out, the distillate is layered, and the organic phase is taken in sequence with water, concentrated hydrochloric acid, water, sodium carbonate dilute solution, it was washed with water and dried with anhydrous calcium chloride. Finally, the 90.5-92.5 °c fraction was collected by distillation to obtain the final product. |
category | flammable liquid |
flammability hazard characteristics | in case of fire, high temperature, oxidant flammable; hyperthermic decomposition of toxic bromide gas |
storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored separately from the oxidant |
extinguishing agent | dry powder, dry sand, carbon dioxide, foam, 1211 extinguishing agent |
spontaneous combustion temperature | 265°C |
toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |