| Names | Chemical formula C 14 H 12 Br 2 | Molar mass 340.058 g·mol − 1 | Appearance White solid | Melting point 241 °C (466 °F; 514 K) |
|---|
Melting point
ca 241° dec.
| Melting Point 235°C to 241°C | Physical Form Powder | Percent Purity 96% | Chemical Name or Material 1, 2-Dibromo-1, 2-diphenylethane | Show More Less |
|---|
May cause severe respiratory tract irritation with possible burns. Causes eye and skin irritation and possible burns. May cause severe digestive tract irritation with possible burns.
Stilbene is used in manufacture of dyes and optical brighteners , and also as a phosphor and a scintillator. Stilbene is one of the gain mediums used in dye lasers.
| Names | Molar mass 340.058 g·mol − 1 | Appearance White solid | Melting point 241 °C (466 °F; 514 K) | Dipole moment 0.4-0.9 |
|---|
| Boiling Point 170.0°C (19.0 mmHg) | Merck Index 15,9664 | Solubility Information Solubility in water: insoluble. Other solubilities: soluble in ether and hot alcohol | Formula Weight 178.23 | Physical Form Crystalline Powder and Chunks |
|---|
Is meso-stilbene dibromide optically active? ... The compound is not optically active .
cis-stilbene after bromination produces racemic 1,2-dibromo-1,2-diphenylethane (melting point...
| PubChem CID 93010 | Chemical Safety Laboratory Chemical Safety Summary (LCSS) Datasheet | Molecular Formula C 14 H 12 Br 2 | Synonyms 1,2-Dibromo-1,2-diphenylethane 5789 -30-0 Stilbene dibromide Benzene, 1,1′-(1,2-dibromo-1,2-ethanediyl)bis- (1,2-Dibromo-2-phenylethyl)benzene More... | Molecular Weight 340.05 |
|---|
Carcinogenicity: CAS# 39416-48-3: Not listed by ACGIH, IARC, NTP, or CA Prop 65. Epidemiology: No information available. ... Reproductive Effects: No information available.
Stilbene dibromide is corrosive and a lachrymator . It may cause irritation to skin, the digestive tract (if swallowed), and respiratory tract (if inhaled).
Yes, methanol is a hazardous chemical that is highly flammable and toxic. Methanol must be properly stored, transported and used by people that have been properly trained in its handling. Methanol is extremely toxic to humans if ingested or if vapors are inhaled.
In these two bromination reactions, pyridinium tribromide will be used as the source of bromine. This solid reagent is safer and easier to handle than elemental bromine , which is a highly corrosive liquid.
Bromination of trans-stilbene produces predominantly meso-1,2-dibromo-1,2-diphenylethane (sometimes called meso-stilbene dibromide) , in line with a mechanism involving a cyclic bromonium ion intermediate of a typical electrophilic bromine addition reaction; cis-stilbene yields a racemic mixture of the two enantiomers ...
The reaction of bromine with (E)-stilbene is a classic reaction performed as an example of an electrophilic addition reaction of alkenes . The reaction is stereospecific through an anti addition to the double bond. The traditional reaction uses a bromine solution in methylene chloride, which has very high toxcity.
Jasmine writes about hobbies and crafts, from DIY projects and art techniques to collecting and creative pursuits.