مجله
استیل چیست استیل یکی از مهم‌ترین آلیاژهای فلزی است که در بسیاری از صنایع مختلف [...]
ادامه
مجله
تصفیه نفت یک فرآیند حیاتی در صنعت نفت و گاز است که جهت جداسازی و [...]
ادامه
مجله
سود پرک یک ماده شیمیایی است که در صنعت آرایشی بهداشتی استفاده می‌شود. این ماده [...]
ادامه
مجله
طی ۵ سال اخیر با توجه به پاندمی کرونا و رکود اقتصادی جهان، بسیاری از [...]
ادامه
Classification of Chemicals Classification of chemicals: Dangerous goods are classified and labeled in many countries according to the United Nations system.In this system, hazardous goods are categorized according to their hazardous properties in six classes These classes include nine distinct classes and a different class of materials The risks for each class are marked with […]
Chemical pollutants Chemical pollutants are divided into organic and mineral groups.Organic compounds contain carbon and hydrogen. Some organic particles are found in the atmosphere more than other organic particles,These include phenols, organic acids, and alcohol.The most famous minerals in the atmosphere are nitrates, sulfates, and metals such as iron, lead, zinc, and vanadium. Sources of […]
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