CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Needles from alcohol; [Merck Index] White crystals, insoluble in water; [MSDSonline] |
|---|---|
| Color/Form | Needles from alcohol |
| Boiling Point | 220 °C |
| Melting Point | 34 °C |
| Flash Point | 98 °C (208 °F) - closed cup |
| Solubility | Insoluble in water |
| Density | 1.324 g/cu cm at 25 °C |
| Vapor Pressure | 0.09 [mmHg] |
| Stability/Shelf Life | Stable under recommended storage conditions. |
| Decomposition | When heated to decomposition it emits toxic fumes of Br-. /Xylyl Bromide/ |
| Other Experimental Properties | Hydrolyzes in water |
| Chemical Classes | Other Classes -> Halogenated Monoaromatics |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
 Corrosion Corrosives GHS05 |
| GHS Hazard Statements |
H314:Skin corrosion/irritation |
| Precautionary Statement Codes |
P260:Do not breathe dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. P363:Wash contaminated clothing before reuse. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
COMPUTED DESCRIPTORS
| Molecular Weight | 185.06 g/mol |
|---|---|
| XLogP3 | 3 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 0 |
| Rotatable Bond Count | 1 |
| Exact Mass | 183.98876 g/mol |
| Monoisotopic Mass | 183.98876 g/mol |
| Topological Polar Surface Area | 0 Ų |
| Heavy Atom Count | 9 |
| Formal Charge | 0 |
| Complexity | 72.6 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
p-Xylyl bromide, also known as methylbenzyl bromide or T-stoff, is a poisonous organic chemical compound, formerly used as a tear gas. Physically it is a colourless liquid (melting point 21 °C) with a pleasant aromatic odour. p-Xylyl bromide is highly toxic, irritant and lachrymatory, and has been incorporated in chemical weapons since the early months of World War I. The first extensive use of xylyl bromide was the firing by German forces of 18,000 "T-shells" at Russian positions in the Battle of Bolimów in January 1915. In the absence of clarification, the name "xylyl bromide" may refer to any one of 3 xylyl isomers (o-Xylyl, p-Xylyl, m-Xylyl) or a mixture of all three.