What is Rosin made of?

Question

My pupils keep asking me and it's getting embarassing!

Answer 1

Rosin, formerly called colophony or Greek pitch (Pix græca), is a solid form of resin obtained from pines and some other plants, mostly conifers, produced by heating fresh liquid resin to vaporise the volatile liquid terpene components. It is semi-transparent and varies in color from yellow to black. At room temperature it is brittle, but it melts at stove-top temperatures. It chiefly consists of different resin acids, especially abietic acid.

Answer 2

All rosin breaks into pieces, it depends on how you use it. I got one cake of rosin for almost $10, and it still breaks, but I've been really careful so that it hasn't yet. I don't think that you'd be able to melt them back into useable form because the rosin is probably made under certain conditions (i.e., temperature, pressure), but you can always use the shards. My teacher purposefully breaks $10 cakes of rosin into pieces so it can be used in several places at the same time, and she uses every single little shard.

Answer 3

What do you teach!!

Rosin, formerly called colophony or Greek pitch (Pix græca), is a solid form of resin obtained from pines and some other plants, mostly conifers, produced by heating fresh liquid resin to vaporise the volatile liquid terpene components. It is ... Rosin is also known as colophony or colophonia resina from its origin

Answer 4

Rosin: Non-asphaltic material used as slip sheets and sheathing paper in roof systems. Also referred to Rosin Paper and Rosin-Sized Sheathing Paper.

it is also know as resin and is made from tree sap

Answer 5

It's a solidified plant resin, usually obtained from conifers. In other words, pine tree sap. That's why it smells kinda neat.

Answer 6

Yep. Tree resin.

Answer 7

I think it's made from the sap of a tree (pine?)

Answer 8

pine tree sap

for a long time i thought it was wax, and got confused why i shouldn't just rub a candle on the strings of my violin

Answer 9

pine trees/sap