Phthaloyl dichloride
Synonym(s):Phthalic acid dichloride;Phthaloyl dichloride
- CAS NO.:88-95-9
- Empirical Formula: C8H4Cl2O2
- Molecular Weight: 203.02
- MDL number: MFCD00000666
- EINECS: 201-869-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-05-15 10:43:47
What is Phthaloyl dichloride?
Chemical properties
colorless or clear yellow oily liquid. decompose with water and alcohol, soluble in ether, chloroform and benzene.
The Uses of Phthaloyl dichloride
o-Phthaloyl Dichloride is used in the phthaloylation of hemicelluloses as an efficient way to improve their lipophilicity and hydrophilicity. Phthaloylation of hemicelluloses is also a key precursor to preparing polysaccharide derivatives.
The Uses of Phthaloyl dichloride
Phthaloyl chloride is used for the preparation of volatile acid chlorides from the acids. It acts as a trapping agent for the nitrite ion in the fluorodenitration of aromatic substrates with potassium fluoride. It serves as an additive in polymers and fibers to improve the color stability. It is used as an ingredient in ceramic mold binders, as a stabilizer for polymers and in reverse osmosis membranes.
Preparation
Synthesis of phthaloyl dichloride: Mix 148g of phthalic anhydride with 220g of phosphorus pentachloride, heat, gradually increase the temperature to 250°C, escape the phosphorus oxychloride, distill the reaction product under reduced pressure, collect the 131-133°C (1.2-1.33kPa) fraction to obtain 187g of phthaloyl dichloride.
General Description
equilibrium mixture (phthaloyl chloride ~80% and pseudochloride ~10%) both components show equal chemical behaviour
Properties of Phthaloyl dichloride
Melting point: | 6-12 °C(lit.) |
Boiling point: | 269-271 °C(lit.) |
Density | 1.409 g/mL at 25 °C(lit.) |
vapor pressure | 30 mm Hg ( 47 °C) |
refractive index | n |
Flash point: | >230 °F |
storage temp. | Store below +30°C. |
solubility | Miscible with ether. |
form | Liquid |
color | Clear yellow |
Water Solubility | decomposes |
Sensitive | Moisture Sensitive |
Merck | 14,7375 |
BRN | 608200 |
Stability: | Moisture Sensitive |
CAS DataBase Reference | 88-95-9(CAS DataBase Reference) |
NIST Chemistry Reference | 1,2-Benzenedicarbonyl dichloride(88-95-9) |
EPA Substance Registry System | 1,2-Benzenedicarbonyl dichloride (88-95-9) |
Safety information for Phthaloyl dichloride
Signal word | Danger |
Pictogram(s) |
Corrosion Corrosives GHS05 |
GHS Hazard Statements |
H314:Skin corrosion/irritation |
Precautionary Statement Codes |
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. P405:Store locked up. |
Computed Descriptors for Phthaloyl dichloride
Abamectin manufacturer
New Products
Tubulysin I Tubulysin C (2S,4R)-4-amino-2-methyl-5-phenylpentanoic acid hydrochloride Diethyl Aluminium Cyanide (1.0 M in Toluene) Potassium HMDS (1.0 M in THF) 4-(Benzyloxy)-3-bromophenylacetic Acid 2-(azetidin-3-ylidene)acetonitrile (hydrochloride) Isoxazole, 3-[[[5-(difluoromethoxy)-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl]methyl]thio]-4,5-dihydro-5,5-dimethyl- 4,4-DIFLUOROPIPERIDINE 4,4-DIFLUOROCYCLOHEXANAMINE 2,2-Difluoropropylamine hydrochloride Calcium Sodium Phosphosilicate IH 2-[[(3aR,4S,6R,6aS)-6-Aminotetrahydro-2,2-dimethyl-4H-cyclopenta-1,3-dioxol-4-yl]oxy]ethanol ethanedioate Imeglimin Hydrochloride IH 2-(1-(Mercaptomethyl) cyclopropyl) acetonitrile 2-[2-[3(S)-3[2-(7-chloro-2-quinolinyl) ethenyl] phenyl-3- hydroxyl propyl] phenyl]-2-propanol Fuel shell 2,3-Dichloro-6- nitrobenzylamine Hydrochloride (1S,4S)-4- (3,4-dichlorophenyl) -N-methyl-1,2,3,4- tetrahydrona phthalen -1-amine .D-Mandelate Magnesium Trisilicate Latanoprostene Bunod Lubiprostone Flame Retardant Zinc Borate 1H-Imidazole-4-carbonitrileRelated products of tetrahydrofuran
You may like
-
Phthaloyl chloride CAS 88-95-9View Details
88-95-9 -
Phthaloyl Chloride CAS 88-95-9View Details
88-95-9 -
Phthaloyl Dichloride tech CAS 88-95-9View Details
88-95-9 -
Phthaloyl dichloride CAS 88-95-9View Details
88-95-9 -
Phthaloyl chloride CAS 88-95-9View Details
88-95-9 -
Phthaloyl Chloride 99%View Details
88-95-9 -
4,6-dichloro-2-propylthiopyrimidine-5-amine 145783-15-9 98%View Details
145783-15-9 -
2-[2-[3(S)-3[2-(7-chloro-2-quinolinyl) ethenyl] phenyl-3- hydroxyl propyl] phenyl]-2-propanol 98%View Details
142569-70-8