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CAS No.: | 13799-90-1 |
---|---|
Name: | 2,5-DICHLOROTEREPHTHALIC ACID |
Article Data: | 19 |
Molecular Structure: | |
Formula: | C8H4Cl2O4 |
Molecular Weight: | 235.023 |
Synonyms: | 2,5-Dichloro-1,4-benzenedicarboxylic acid;2,5-Dichloro-4-carboxybenzoic acid;NSC 59392;Terephthalicacid, 2,5-dichloro- (6CI,7CI,8CI); |
EINECS: | 237-454-6 |
Density: | 1.698 g/cm3 |
Melting Point: | 295℃ |
Boiling Point: | 405.9 °C at 760 mmHg |
Flash Point: | 199.3 °C |
Appearance: | White Powder |
Hazard Symbols: | 36/37/38:; |
Risk Codes: | 36/37/38 |
Safety: | 26-36/37/39 |
PSA: | 74.60000 |
LogP: | 2.38980 |
1,4-dichloro-2,5-dimethylbenzene
2,5-dichloroterephthalic acid
Conditions | Yield |
---|---|
With potassium permanganate In pyridine | 72% |
With potassium permanganate; Aliquat 336 In water at 80℃; for 72h; | 64% |
Stage #1: 1,4-dichloro-2,5-dimethylbenzene With pyridine; potassium permanganate In water at 100℃; for 12h; Stage #2: With hydrogenchloride In water pH=1; | 53% |
1,4-dichloro-2,5-dimethylbenzene
A
2,5-dichloroterephthalic acid
B
2,5-dichloro-p-carboxybenzaldehyde
Conditions | Yield |
---|---|
With oxygen; cobalt(II) acetate; sodium bromide In acetic acid at 95℃; under 760 Torr; | A 22% B 71% |
dimethyl 2,5-dichloro-terephthalate
2,5-dichloroterephthalic acid
Conditions | Yield |
---|---|
With potassium hydroxide In tetrahydrofuran; water at 66℃; Sandmeyer Reaction; | 69% |
1,4-dichloro-2,5-dimethylbenzene
A
2,5-dichloroterephthalic acid
B
2,5-dichloro-4-methylbenzoic acid
C
2,5-dichloro-p-carboxybenzaldehyde
E
2,5-dichloro-p-carboxybenzyl acetate
Conditions | Yield |
---|---|
With oxygen; cobalt(II) acetate; sodium bromide In acetic acid at 95℃; under 760 Torr; for 4h; Product distribution; | A 13.7% B 65.4% C 16.7% D 0.6% E 3.6% |
1,2,4,5-tetrachlorobenzene
carbon dioxide
A
2,5-dichloroterephthalic acid
B
benzoic acid
C
para-chlorobenzoic acid
D
3-chlorobenzoate
Conditions | Yield |
---|---|
With tetrabutylammomium bromide In N,N-dimethyl-formamide at -5 - 0℃; Dehalogenation; Carboxylation; Electrochemical reaction; Further byproducts given; | A 17% B 3% C 2% D 1% |
2,5-dichloro-1,4-bis-(trichloromethyl)-benzene
2,5-dichloroterephthalic acid
Conditions | Yield |
---|---|
With sulfuric acid |
A
2,5-dichloroterephthalic acid
B
2,5-dichloro-3-nitro-terephthalic acid
Conditions | Yield |
---|---|
With water; nitric acid |
Conditions | Yield |
---|---|
With water; chlorine; zinc(II) chloride anschliessendes Behandeln mit wss. NaOH; |
2,5-dichloro-p-carboxybenzaldehyde
2,5-dichloroterephthalic acid
Conditions | Yield |
---|---|
With sodium hydroxide; potassium permanganate at 75 - 80℃; Yield given; |
2,5-dichloroterephthalic acid
Conditions | Yield |
---|---|
With nitric acid at 190℃; im geschlossenen Rohr; |
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The Molecular Structure of 2,5-Dichloroterephthalic acid (CAS NO.13799-90-1) is
Cas Register Number: 13799-90-1
IUPAC Name: 2,5-Dichloroterephthalic acid
Synonyms: 1,4-Benzenedicarboxylic acid, 2,5-dichloro- ; 2,5-Dichloroterephthalic acid ; 2,5-Dichlorobenzene-1,4-dicarboxylic acid ; Terephthalic acid, 2,5-dichloro-
Molecular formula: C8H4Cl2O4
Molecular weight: 235.020960g/mol
Product Categories: Fluorobenzene;Aromatic Carboxylic Acids, Amides, Anilides, Anhydrides & Salts;Organic acids
H bond acceptors: 4
H bond donors: 2
Freely Rotating Bonds: 2
Polar Surface Area: 52.6 Å2
Index of Refraction: 1.64
Molar Refractivity: 49.9 cm3
Molar Volume: 138.3cm3
Surface Tension: 72 dyne/cm
Density: 1.698 g/cm3
Flash Point: 199.3 °C
Enthalpy of Vaporization: 69.34 kJ/mol
Boiling Point: 405.9 °C at 760 mmHg
Vapour Pressure of 2,5-Dichloroterephthalic acid (CAS NO.13799-90-1): 2.57E-07 mmHg at 25°C
Risk Statements: 36/37/38
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36/37/39
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.