0
There are two types of chalk, calcium sulfate and calcium carbonate.
The natural occurring sedimentary rock called chalk is a form of limestone made of the compound calcium carbonate. One of the crystal forms is calcite, which the melting point is 1,339 °C (2,442 °F; 1,612 K). The melting point of a second crystal form, aragonite, is 825 °C (1517 °F; 1,098 K).
Blackboard chalk is made of calcium sulfate, also known as gypsum. The melting point is 1,460 °C (2,660 °F; 1,730 K),
Wiki User
∙ 7y ago
Add your answer:
Earn +20 pts
What is incipient melting point?
The incipient melting point refers to how metal is heated. It is the point just before the metal reaches its melting point.
Do solids have a high or low melting point?
That depends on the solid: ice has a very low melting point, lard and butter have low melting points, chocolate has a relatively low melting point, wax has an intermediate melting point, lead has a high melting point, iron has a very high melting point, tungsten has an extremely high melting point.
What is the melting point of gold silver and copper?
Melting point of Gold = 1064.18 °C Melting point of Silver = 961.78 °C Melting point of Copper = 1084.62 °C Of cause an alloy of all three would probably have a eutectic melting behavour
What is the melting point of ice on the top of Himalayan?
what is the melting point of ice on top of the Himalayan
What is the melting and boiling point of Graphite?
The melting point is between 3652 and 3697 degrees C. The boiling point is 4200 degrees C.
What do you call the temperature at which a solid changes to a liquid?
This is the melting point.
Which term is defined as the temperature at which a substance changes from a solid to a liquid state?
melting point
The temperature at which a solid melts is called?
melting point
What is difference between melting point and drop melting point?
No basic Difference between melting point and Drop point.
What becomes solid above the melting point?
assuming it is its own melting point NOTHING which is why its a MELTING point
What is the melting point of tar?
What is the melting point of tar?
Deffine melting point?
deffine what is melting point?
Melting point for LPG?
what is lpgs melting point
Is the melting point of bromine higher or lower than the melting point of chlorine?
The melting point of bromine is -7,2 0C. The melting point of chlorine is -101,5 0C.
What has the highest melting point NaF NaCl NaBr NaI?
NaCl has the highest melting point (between NaCl and H2O)
What is poloniums melting point?
The polonium melting point is 254 0C.
What is the melting point of californium?
The melting point of californium is: 900 0C.
