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When inserting glass tubing why is it important that you wear safety goggles and gloves or cover the tubing and stopper with protective pads of cloth?
Wiki User
∙ 15y ago
If you are placing the tube into a hot liquid or a hot tube into a cold liquid, you are running the chance of it exploding and trust me, no one likes glass in their eyes or hands.
Wiki User
∙ 15y ago
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What is the purpose of wetting the glass tubing before inserting into a stopper?
What is the purpose of wetting the glass tubing before inserting into a stopper?
How do you avoid burns in the chemistry lab?
Don't splash burning substances on exposed skin, apply a solution of hydrochloric acid and petrol to your hair and face and avoid Bunsen flames.
What is a bleeding stopper?
Styptic pencil is a bleeding stopper.
When was The Crystal Stopper created?
The Crystal Stopper was created in 1912.
Why is glycerin used for inserting glass in rubber stopper?
In a chemical laboratory it is not so recommended to lubricate stoppers with a grease; this grease can be dissolved by reactants and the experiment become compromised. But some exceptions exist.
What is the purpose of wetting the glass tubing before inserting into a stopper?
What is the purpose of wetting the glass tubing before inserting into a stopper?
Before inserting the glass tubing into a stopper why is it nesessary to use a lubricant?
The purpose is to allow an easy insertion.
Why is it important to touch a charged object to the metal rod of an electroscope and not to the rubber stopper?
it is important because if you don't and touch the rubber stopper it will not show if it is positive.
What is the density of a cork?
The density of a wooden cork stopper is about 0.25 grams per ml. This value can be important in experiments where a cork stopper is used.
How do you avoid burns in the chemistry lab?
Don't splash burning substances on exposed skin, apply a solution of hydrochloric acid and petrol to your hair and face and avoid Bunsen flames.
What are the safety precautions and techniques when inserting a glass tubing in a rubber stopper?
never attempt to insert glass tubing that has a jagged end, all glass tubing should be fire polished before its inserted into a rubber stopper. Use water or glycerin as a lubricant at the end of the glass tubing before inserting it into the rubber stopper. ask teacher for proper lubricant. Protect hands and fingers by wearing leather gloves or placing a folded cloth between your hands and the tubing. hold it as close as possible to the part it is inserted to the rubber stopper. always point the tubing away from the palm of your hand that holds the stopper. use a twisting motion and push the tubing into the stopper. At the end of the experiment put on leather gloves or place the folded cloth between your hands and the tubing and remover the stoppers from the tubing to keep them from sticking to the glass. if it wont budge, use lubricant.
Is stopper or stoper spelled correctly?
it is stopper =]
What is a bleeding stopper?
Styptic pencil is a bleeding stopper.
When was The Crystal Stopper created?
The Crystal Stopper was created in 1912.
How tall is Janina Stopper?
Janina Stopper is 157 cm.
What is cook stopper?
A CORK stopper is a plug for a bottle made of cork
What is the past tense of stopper?
The past tense of stopper is stopped.
