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Article
Publication date: 21 June 2011

M. Abdullah Dar

The purpose of this paper is to make people aware of organic corrosion inhibitors.

Abstract

Purpose

The purpose of this paper is to make people aware of organic corrosion inhibitors.

Design/methodology/approach

As it is a literature review paper, no specific method is used.

Findings

It has been found that plant extracts and oils show inhibition efficiency up to 98 percent, so it is certain that plant extracts and oils are effective corrosion inhibitors and can be successfully used at the industrial level.

Research limitations/implications

Plant extracts and oils are also found to be non‐toxic, highly efficient, renewable and cheap. But less effort has been given towards the identification of which compound is active in the extract.

Originality/value

The paper shows detailed account of the inhibitors obtained from plants, which are used as natural corrosion inhibitors.

Details

Industrial Lubrication and Tribology, vol. 63 no. 4
Type: Research Article
ISSN: 0036-8792

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Article
Publication date: 22 October 2018

Viktoria Vorobyova, Margarita Skiba and Olena Chygyrynets’

This paper aims to investigate the efficacy of grape pomace extract (GPE) as an eco-friendly vapor phase green inhibitor for corrosion of steel and assess the effect of…

Abstract

Purpose

This paper aims to investigate the efficacy of grape pomace extract (GPE) as an eco-friendly vapor phase green inhibitor for corrosion of steel and assess the effect of the major compounds of extract on the inhibition efficiency.

Design/methodology/approach

The present study was carried out to identify the components present in the 2-propanol GPE by gas chromatography–mass spectrometry (GC-MS) analysis. Gravimetric, electrochemical impedance spectroscopy, potentiodynamic polarization, scanning electron microscopy and FTIR techniques were used to study the corrosion inhibitive.

Findings

GPE has inhibited mild steel corrosion in conditions of periodic condensation of moisture. The gravimetric measurement indicates that inhibition efficiency shows direct proportional relation with concentration of inhibitor. The GPE and main components acted as a mixed-type inhibitor with predominant cathodic effectiveness. Research limitations/implications. Because of the presence of large number of compounds in the extract, it becomes difficult to understand the most active compound responsible for inhibition. However, from gas chromatography, mass spectrometry and quantum data, the assumption has been made that the major compound of GPE is responsible for the inhibition activity.

Practical implications

The extract can be used in the temporary corrosion protection and is designed to prevent the corrosion of metal surfaces of equipment during transportation and storage.

Originality/value

GPE can be used as a potential source of ecofriendly corrosion inhibitor for steel corrosion.

Details

Pigment & Resin Technology, vol. 48 no. 2
Type: Research Article
ISSN: 0369-9420

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Article
Publication date: 6 March 2017

Santiago Flores Merino, Juan José Caprari, Luis Vasquez Torres, Luis Figueroa Ramos and Antonella Hadzich Girola

The purpose of this paper is to study the ability of commercial tara powder to convert rust into iron tannate and evaluate their use as raw material for the formulation of…

Abstract

Purpose

The purpose of this paper is to study the ability of commercial tara powder to convert rust into iron tannate and evaluate their use as raw material for the formulation of water based rust converter.

Design/methodology/approach

Water-borne acrylic primers were formulated with tara powder and aqueous tara extract and applied on steel rusted by three different methods. The conversion of rusted steel by tara tannins was studied by X-ray diffraction spectroscopy, infrared spectroscopy and scanning electron microscopy. The acrylic primers, containing hydrolysable tannins, were coated with alkyd finish and were evaluated in comparison to commercial systems in accelerated corrosion tests. The corrosion inhibition effects of tara powder on mild steel in 0.1M NaCl were studied by DC electrochemical techniques.

Findings

Tara tannin converts rust to ferric tannate and increases the magnetite content of rusted steel. The water-based acrylic primer formulated with aqueous extract of tara, alkyd-coated finish, showed performance equivalent to pure alkyd system.

Research limitations/implications

The chlorides content in the commercial tara powder can be screened the beneficial effect of hydrolysable tannins to convert rust. Furthermore, the water-based rust converter formulated with acrylic resin may be sensitive to salt contamination of rust.

Originality/value

Hydrolysable tannins from commercial tara powder have not been studied yet in its application to the development of rust converters. A water-based primer formulated with commercial tara powder developed for the effective treatment of rusted surfaces can be of interest as an environmentally friendly to current commercial approaches.

Details

Anti-Corrosion Methods and Materials, vol. 64 no. 2
Type: Research Article
ISSN: 0003-5599

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Book part
Publication date: 26 August 2019

Safinar Salleh, Akmal Hidayah Halim, Uzaimah Ibrahim and Mohamad Asmadi Abdullah

A family takaful certificate is subscribed by a takaful participant for the purpose of preparing financial support for his dependants after his death. The takaful benefits…

Abstract

A family takaful certificate is subscribed by a takaful participant for the purpose of preparing financial support for his dependants after his death. The takaful benefits could then be made payable to a nominee named as the beneficiary under conditional hibah (gift). In this respect, the participant is free to decide to whom the benefits are to be given since the law is silent as to the criteria of the beneficiary. This situation gives rise to the issue on whether such a practice fulfils the objectives of Sharīʿah, especially when the nominated beneficiary is not the sole dependant of the deceased participant. Therefore, this research aims to evaluate the status of family takaful benefits, analyse the rules of conditional hibah from the Sharīʿah perspective and propose solutions whenever necessary. The research adopts doctrinal analysis by examining existing primary and secondary materials including statutory provisions and other legal and non-legal literatures. The study predicates that the application of conditional hibah to the whole benefits does not reflect the objectives of Sharīʿah if determination on the status of the benefits is solely based on the nomination made by the participant. It is observed that takaful benefits payable from the Participant’s Account should be considered as the deceased’s estate and must be distributed according to fara’id or Islamic law of inheritance. Conversely, the sum covered payable from the Participant’s Special Account may be paid to the deceased’s dependants whose criteria are determined by the Sharīʿah Advisory Council as the highest authority in Islamic financial matters.

Details

Emerging Issues in Islamic Finance Law and Practice in Malaysia
Type: Book
ISBN: 978-1-78973-546-8

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Book part
Publication date: 20 May 2019

Mohammad Abdullah and Mohammad Saif Sarwar

To meet the philosophical underpinnings of Islamic financial institutions (IFIs), a sound shari'ah governance framework (SGF) for each and every IFI is vital…

Abstract

To meet the philosophical underpinnings of Islamic financial institutions (IFIs), a sound shari'ah governance framework (SGF) for each and every IFI is vital. Establishment of a proper SGF is central for smooth and effective functioning of an IFI. In the periphery of shari'ah governance (SG), the role of Shari'ah Supervisory Boards (SSB) is considerably crucial. SSB constitutes one of the most important SG elements in a given IFI. One of the central objectives of SGF is to protect and boost the authenticity of IFIs among its stakeholders, which is instrumental for the resilience and growth of the industry. To achieve this, it is required that an end-to-end shari'ah assurance process is functionalised at IFIs. To this end, external shari'ah audit, which is a process of objectively evaluating the entire operations of an IFI from shari'ah perspective and ascertaining that all events are based on shari'ah principles, is of paramount significance.

Details

Research in Corporate and Shari’ah Governance in the Muslim World: Theory and Practice
Type: Book
ISBN: 978-1-78973-007-4

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Book part
Publication date: 19 November 2018

Glenn Hardaker and Aishah Ahmad Sabki

Abstract

Details

Pedagogy in Islamic Education
Type: Book
ISBN: 978-1-78754-532-8

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Article
Publication date: 1 February 1995

Magda El‐Sherbini

Najib Mahfuz is the first Arab‐language author to win the Nobel Prize in literature. Born in 1911 the son of a middle‐class Jamaliyah merchant, he became the most popular…

Abstract

Najib Mahfuz is the first Arab‐language author to win the Nobel Prize in literature. Born in 1911 the son of a middle‐class Jamaliyah merchant, he became the most popular novelist in Egypt and the Arab countries.

Details

Reference Services Review, vol. 23 no. 2
Type: Research Article
ISSN: 0090-7324

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Article
Publication date: 1 December 2003

Abdullah H. Albatel

During the past five decades, the role of government in most developed and developing countries has increased dramatically. Governments increased their provisions of…

Abstract

During the past five decades, the role of government in most developed and developing countries has increased dramatically. Governments increased their provisions of social services and welfare. Furthermore, governments have become important producers of goods and services. In addition, by using a variety of fiscal and monetary instruments governments have attempted to manipulate and influence the economy. They have also sought to guide the development of the economy in the long run through the creation of economic infrastructure and institutions.

Details

Journal of Economic and Administrative Sciences, vol. 19 no. 2
Type: Research Article
ISSN: 1026-4116

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Book part
Publication date: 19 November 2018

Mohd Izuwan Mahyudin and Azizi Che Seman

Purpose – A study of Islamic banking products, especially bay’ al-tawarruq transactions, demonstrates that the purpose of these transactions is to provide liquidity to the…

Abstract

Purpose – A study of Islamic banking products, especially bay’ al-tawarruq transactions, demonstrates that the purpose of these transactions is to provide liquidity to the customer, such as personal financing, working capital expenditure, cash lines and credit cards. However, as the industry expands, the industry is innovating to extend products to include an investment and deposit instrument that provides a fixed return to the customer. As the second fully-fledged Islamic bank in Malaysia, Bank Muamalat Malaysia Berhad (BMMB) offers products based on the bay’ al-tawarruq concept.

Methodology/approach – This study investigates the original principles of the bay’ al-tawarruq contract and its current applications in BMMB.

Findings – The study found that the bay’ al-tawarruq contract is being adopted as an alternative to the bay’ al-‘inah contract, especially for financing-based products offered by BMMB.

Originality/value – This is an attempt to study the application of Tawarruq contract in Bank Muamalat’s product offerings based on the process and mechanism of Bursa Suq al-Sila’ (BSAS).

Details

New Developments in Islamic Economics
Type: Book
ISBN: 978-1-78756-283-7

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Book part
Publication date: 19 December 2016

Mohammad Ashraful Ferdous Chowdhury, Mohammad Shoyeb, Chowdhury Akbar and Md. Nazrul Islam

The purpose of this study is to examine the effect of risk sharing and non-risk sharing instruments on both the profitability of Islamic banks and the economic growth of…

Abstract

Purpose

The purpose of this study is to examine the effect of risk sharing and non-risk sharing instruments on both the profitability of Islamic banks and the economic growth of the country. This study also aims to improve the profit and loss sharing-based asset growth of Islamic banks.

Methodology/approach

The data for this study are obtained from the annual reports of all Islamic banks from Bangladesh using Bank scope database and annual report for the period of 1983–2014. The research uses Autoregressive Distributive Lag approach.

Findings

The findings reveal that risk sharing instruments are positively related to profitability and the economic growth of the country. This study also finds that non-risk sharing instruments play a predominant role in the profitability of the Islamic bank but are negatively related to the economic growth of the country.

Research implications

Banks and other financial institutions need to pay greater attention to systemic risk created by risk transfer and apply risk sharing methods of financing more vigorously than has hitherto been the case.

Originality/value

This study will also contribute to the literature as relatively few Islamic financial literatures deal with the relationship between equity financing and profitability which may make a strong contribution to the area of Islamic finance.

Details

Advances in Islamic Finance, Marketing, and Management
Type: Book
ISBN: 978-1-78635-899-8

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