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610-35-5

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610-35-5 Usage

Chemical Properties

off-white to white powder

Uses

4-Hydroxyphthalic acid is used as a precursor to prepare 3,5-dichloro-4-hydroxyphthalic acid using the reagent aqueous acetic acid and chlorine. Further, it is also used as a starting material in the manufacture of N-(4-carboxyphenyl)-4-acetoxyphthalimide.

Definition

ChEBI: 4-hydroxyphthalic acid is a hydroxybenzoic acid that is phthalic acid in which the hydrogen at position 4 is substituted by a hydroxy group. It is a member of phenols and a hydroxybenzoic acid. It derives from a phthalic acid.

Check Digit Verification of cas no

The CAS Registry Mumber 610-35-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,1 and 0 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 610-35:
(5*6)+(4*1)+(3*0)+(2*3)+(1*5)=45
45 % 10 = 5
So 610-35-5 is a valid CAS Registry Number.
InChI:InChI=1/C8H6O5/c9-4-1-2-5(7(10)11)6(3-4)8(12)13/h1-3,9H,(H,10,11)(H,12,13)/p-2

610-35-5 Well-known Company Product Price

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  • Alfa Aesar

  • (A15091)  4-Hydroxyphthalic acid, 98%   

  • 610-35-5

  • 5g

  • 1449.0CNY

  • Detail
  • Alfa Aesar

  • (A15091)  4-Hydroxyphthalic acid, 98%   

  • 610-35-5

  • 25g

  • 5875.0CNY

  • Detail
  • Alfa Aesar

  • (A15091)  4-Hydroxyphthalic acid, 98%   

  • 610-35-5

  • 100g

  • 12313.0CNY

  • Detail

610-35-5SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name 4-hydroxyphthalic acid

1.2 Other means of identification

Product number -
Other names 4-HYDROXY-1,2-BENZENEDICARBOXYLIC ACID

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:610-35-5 SDS

610-35-5Relevant articles and documents

Hodgson,Davies

, p. 806,808 (1939)

Automated on-line monitoring of the TiO2-based photocatalytic degradation of dimethyl phthalate and diethyl phthalate

Salazar-Beltrán, Daniel,Hinojosa-Reyes, Laura,Maya-Alejandro, Fernando,Turnes-Palomino, Gemma,Palomino-Cabello, Carlos,Hernández-Ramírez, Aracely,Guzmán-Mar, Jorge Luis

, p. 863 - 870 (2019/04/17)

A fully automated on-line system for monitoring the TiO2-based photocatalytic degradation of dimethyl phthalate (DMP) and diethyl phthalate (DEP) using sequential injection analysis (SIA) coupled to liquid chromatography (LC) with UV detection was proposed. The effects of the type of catalyst (sol-gel, Degussa P25 and Hombikat), the amount of catalyst (0.5, 1.0 and 1.5 g L-1), and the solution pH (4, 7 and 10) were evaluated through a three-level fractional factorial design (FFD) to verify the influence of the factors on the response variable (degradation efficiency, %). As a result of FFD evaluation, the main factor that influences the process is the type of catalyst. Degradation percentages close to 100% under UV-vis radiation were reached using the two commercial TiO2 materials, which present mixed phases (anatase/rutile), Degussa P25 (82%/18%) and Hombikat (76%/24%). 60% degradation was obtained using the laboratory-made pure anatase crystalline TiO2 phase. The pH and amount of catalyst showed minimum significant effect on the degradation efficiencies of DMP and DEP. Greater degradation efficiency was achieved using Degussa P25 at pH 10 with 1.5 g L-1 catalyst dosage. Under these conditions, complete degradation and 92% mineralization were achieved after 300 min of reaction. Additionally, a drastic decrease in the concentration of BOD5 and COD was observed, which results in significant enhancement of their biodegradability obtaining a BOD5/COD index of 0.66 after the photocatalytic treatment. The main intermediate products found were dimethyl 4-hydroxyphthalate, 4-hydroxy-diethyl phthalate, phthalic acid and phthalic anhydride indicating that the photocatalytic degradation pathway involved the hydrolysis reaction of the aliphatic chain and hydroxylation of the aromatic ring, obtaining products with lower toxicity than the initial molecules.

A hydroxy benzoic anhydride preparation method

-

, (2017/08/25)

The invention discloses a preparation method of hydroxy benzene anhydride. The preparation method comprises the following steps: mixing nitrophthalonitrile and an organic solvent, adding alkali and nitrite, performing heating and a reflux reaction, and performing aftertreatment so as to obtain hydroxyl phthalonitrile; mixing the hydroxyl phthalonitrile and a KOH aqueous solution, performing heating, reflux and filtration, collecting filtrate, after the filtrate is cooled, regulating the pH to be 1, performing multiple extraction, taking an extraction liquid, and performing aftertreatment so as to obtain hydroxyl phthalic acid; and finally performing vacuum sublimation on the hydroxyl phthalic acid so as to obtain the hydroxy benzene anhydride. The simple preparation method of the hydroxy benzene anhydride, provided by the invention, is mild in reaction conditions, simple and convenient to operate, easy to control, low in equipment requirements and very high in yield.

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