"Az-buki" National Publishing House
Ministry of Education and Science
Wikipedia
  • Login
  • Registration
Filosofiya-Philosophy
Няма резултати
Вижте всички резултати
  • Main Page
  • About the journal
  • Submit your manuscript
  • Editorial Board Members
  • Contents
  • Guidelines
    • Guide for Authors
    • Reviewer's Guide
  • Publishing Ethics
  • Contact
  • Subscribe now
  • en_US
  • Main Page
  • About the journal
  • Submit your manuscript
  • Editorial Board Members
  • Contents
  • Guidelines
    • Guide for Authors
    • Reviewer's Guide
  • Publishing Ethics
  • Contact
  • Subscribe now
  • en_US
Няма резултати
Вижте всички резултати
Filosofiya-Philosophy
Няма резултати
Вижте всички резултати
Main Page Uncategorized

Chemistry of Coins

„Аз-буки“ by „Аз-буки“
02-10-2025
in Uncategorized
A A

Category "Presentation", 5. – 7. grade

Kristina Ankova, 7th grade[1]

Siyana Hristova, 7th grade[1]

Supervisor: Rostislava Tsaneva

“Lyuben Karavelov” Primary School – Popovo (Bulgaria)

https://doi.org/10.53656/nat2025-3.19

Abstract. The study examines the chemical composition and structure of ancient coins, the technologies used for their minting, and the processes of aging and corrosion. Various metals and their characteristics affecting the durability and appearance of coins are presented. The role of patina as a protective layer is explained and methods for chemical cleaning are discussed. Special attention is given to techniques for determining the authenticity of coins through chemical and physical analyses. The aim is to create an idea of the interaction between chemical elements and cultural heritage, to analyze the factors that influence the condition of coins over time, to explore the possibilities for chemical cleaning and determining their authenticity, and to stimulate students’ interest in applied chemistry.

Keywords: coins; metals; corrosion; patina; dry cleaning; authenticity

Log in to read the full text Your Image Description

Свързани статии:

Default ThumbnailThe Metal of Time Default ThumbnailChemistry of Money Default ThumbnailThe Genuine Rhythm оf Being аs A Task оf Philosophy Default ThumbnailChemistry of Banknotes and Coins from the Time of Our Great-Grandparents to the Present
Tags автентичносткорозияметалимонетипатинахимично почистване

Последвайте ни в социалните мрежи

shareTweet
Previous article

The Bulgarian Name of Longevity

Next article

Chemistry of Chocolate

Next article

Chemistry of Chocolate

Община Русе отново дари „Културен чек“ на зрелостниците от града

Община Русе отново дари „Културен чек“ на зрелостниците от града

The Chemistry of Money

Последни публикации

  • Philosophy, Number 3/2025, Volume 34
  • Philosophy, Number 2s/2025, Volume 34
  • Philosophy, Number 2/2025, Volume 34
  • Philosophy, Number 1/2025, Volume 34
  • Годишно съдържание на сп. „Философия“, година XXXII
  • Philosophy, Number 4/2024, Volume 33
  • Philosophy, Number 4s/2024, Volume 33
  • Philosophy, Number 3s/2024, Volume 33
  • Philosophy, Number 3/2024, Volume 33
  • Philosophy, Number 2/2024, Volume 33
  • Philosophy, Number 1/2024, Volume 33
  • Годишно съдържание на сп. „Философия“, година XXXI
  • Philosophy, Number 4/2024, Volume 33
  • Philosophy, Number 3/2023, Volume 32
  • Philosophy, Number 3s/2024, Volume 33
  • Philosophy, Number 2/2023, Volume 32
  • Philosophy, Number 1/2023, Volume 32
  • Annual contents of Filosofiya-Philosophy 2022
  • Philosophy, Number 4/2022, Volume 31
  • Philosophy, Number 3/2022, Volume 31
  • Philosophy, Number 2/2022, Volume 31
  • Philosophy, Number 1/2022, Volume 31

София 1113, бул. “Цариградско шосе” № 125, бл. 5

+0700 18466

izdatelstvo.mon@azbuki.bg
azbuki@mon.bg

Полезни линкове

  • Къде можете да намерите изданията?
  • Вход за абонати
  • Main Page
  • Contact
  • Subscribe now
  • Projects
  • Advertising

Az-buki Weekly

  • Вестник “Аз-буки”
  • Subscribe now
  • Archive

Scientific Journals

  • Strategies for Policy in Science and Education
  • Bulgarian Language and Literature
  • Pedagogika-Pedagogy
  • Mathematics and Informatics
  • Natural Science and Advanced Technology Education
  • Vocational Education
  • Istoriya-History journal
  • Chuzhdoezikovo Obuchenie-Foreign Language Teaching
  • Filosofiya-Philosophy

Newsletter

  • Accsess to public information
  • Условия за ползване
  • Профил на купувача

© 2012-2025 Национално издателство "Аз-буки"

Welcome Back!

Login to your account below

Forgotten Password? Sign Up

Create New Account!

Fill the forms bellow to register

All fields are required. Log In

Retrieve your password

Please enter your username or email address to reset your password.

Log In
en_US
bg_BG en_US
  • Login
  • Sign Up
Няма резултати
Вижте всички резултати
  • Main Page
  • About the journal
  • Submit your manuscript
  • Editorial Board Members
  • Contents
  • Guidelines
    • Guide for Authors
    • Reviewer's Guide
  • Publishing Ethics
  • Contact
  • Subscribe now
  • en_US

© 2012-2025 Национално издателство "Аз-буки"