a crucible is a small cup-like object used in chemistry because it can resist very high temperatures.
I'm not sure about the cover bit. perhaps an object made of the same material used to cover a crucible?
البوتقة عبارة عن إناء على شكل الفنجان يستعمل في المختبرات الكيميائية وذلك لكي يحوي العينات المخبرية عند تسخينها لدرجات حرارة مرتفعة، على سبيل المثال عند وضع العينات في المرمدة.
تستخدم البوتقة أيضاً من أجل سكب مصهور الفلزات.
يجب أن تكون البوتقة ثابتة تجاه الحرارة والمركبات الكيميائية، لذلك تصنع غالباً من السيراميك وفي بعض الأحيان من الفلزات.
غالبا يتم يستخدم غطاء مع البوتقة لمنع تطاير العينات منها، كما يستعما حامل معدني (ملقط) لتجنب تلامس البوتقة الساخنة أثناء إخراجها من الفرن.
A crucible is a type of laboratory glassware designed to melt or burn solid chemicals over a burner. Made from heat-resistant ceramic or metal, they'll withstand high temperatures up to 1050° Fahrenheit.
A crucible is a small container made from platinum or platinum alloys, zirconium, steel, ceramics used for calcination at high temperature, melting etc; the crucible may have a cover it is necessary.
The crucible and his cover are used for calcination and melting at high temperatures. It is a container very frequently used in chemical laboratories; big crucibles are also common in industry.
used to hold and heat small amounts of chemicals
The crucible is used for heating small quantities to very high temperatures.
used to hold chemicals and powder to be heated.
The most important uses of a crucible are:
- calcination of substances
- melting
The cover is used to protect the content of the crucible from contamination.
porcelainIt is made of either porcelain or an inert metal
To drive off any volatile materials that might alter the mass of crucible and cover.
A crucible is a heat-resistant container in which materials can be heated to very high temperatures. If you heat with the cover on, it could produce an overflow of the material.
Yes. They're usually made out of ceramics, porcelain, so they can break if dropped for instance.
A crucible is a vessel in which metal is melted.
a crucible and cover
To drive off any volatile materials that might alter the mass of crucible and cover.
Clay triangle is used to hold a crucible while the crucible is heated.
The crucible is used for heating small quantities to very high temperatures.
It is necessary to cover the crucible when it is being heated for two basic reasons: primarily, it maintains a higher temperature inside the crucible. Without the lid, the heat simply escapes. Secondly, it keeps the material inside the crucible from splashing out.
The clay triangle is used to hold a crucible while the crucible is heated.
Crucible is a laboratory tool which has cover, it can hold on your specimens whenever you perform a experiment. by; frisco baculio jr
please re phrase the question
a crucible is a small cup-like object used in chemistry because it can resist very high temperatures.
What_are_each_of_the_different_laboratory_apparatuses_and_how_are_they_used
I'm assuming you mean a crucible and lid (the little white things you place in ovens or on the top of Bunsen burners)? If you do, then a crucible and a lid is a way to get an anhydrized solid (a solid which may have H2O mixed in amongst the pure solid) and turn it into pure product by evaporating away all of the water in the solid.
porcelainIt is made of either porcelain or an inert metal