Substance profile
Barban
Barban is a crystalline solid and is odorless.
01 · Identification
What Barban is
Barban is a crystalline solid and is odorless. Its molecular formula is C11H9Cl2NO2 and its molecular weight is 258.1 g/mol. It melts at 75.5 °C.
Under the GHS it carries the signal word Warning.
Other names for Barban
- barban (ISO)
- 4-chlorbut-2-ynyl N-(3-chlorophenyl)carbamate
02 · GHS classification
Hazards and label elements
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
| Code | Hazard statement |
|---|---|
| H302 | Harmful if swallowed. |
| H317 | May cause an allergic skin reaction. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
Precautionary statements: P261, P270, P272, P273, P280, P301, P312, P313, P330, P333, P391, P501
03 · Physical and chemical properties
Barban properties
Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | Degrades before boiling | HSDB | |
| Melting point | 75.5 °C (167.9 °F) | range, midpoint shown | HSDB |
| Density | 1.403 g/cm³ | at 25 °C | HSDB |
| Solubility | In water, 1.1X10+1 mg/L at 25 °C | at 25 °C | HSDB |
| Vapor pressure | 3.8e-7 mmHg | at 25 °C | HSDB |
| 3.8e-7 mmHg | Haz-Map | ||
| Flash point | 50 °C (122 °F) | HSDB | |
| Corrosivity | Liq concn may cause corrosion of tin plate & mild steel at the liq-air interface; aluminum, phenolic-lined cans or glass are recommended for storage | HSDB | |
| Corrosive | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Source notes
Further notes on Barban
These are descriptions rather than measured values, so they are kept out of the table above and quoted here with the source that reported them.
Solubility
At 25 °C g/100 g solvent: benzene 32.7 g; n-butylbenzene 11.3 g; n-dodecane less than 0.1 g; n-hexane 0.14 g; isopropylbenzene less than 7.0 g; kerosene 0.39 g; toluene 25.7 g; 2,2,4-trimethylpentane more than 0.3 g; xylene 27.9 g; water 0.0011 g
Source: HSDB
05 · Handling and storage
Storing and handling Barban
Storage conditions
Aluminum, phenolic-lined cans, or glass are recommended for lengthy storage
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
BARBAN is a carbamate ester. Carbamates are chemically similar to, but more reactive than amides. Like amides they form polymers such as polyurethane resins. Carbamates are incompatible with strong acids and bases, and especially incompatible with strong reducing agents such as hydrides. Flammable gaseous hydrogen is produced by the combination of active metals or nitrides with carbamates. Strongly oxidizing acids, peroxides, and hydroperoxides are incompatible with carbamates.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Barban in the storage compatibility matrix →