CCHM LAB - WEEK 3 - GLASSWARES Flashcards
LIST ALL THE TYPES OF GLASS
- High Thermal Resistant/Borosilicate Glass
- Boron-free/Soft Glass
- Corex
- Flint glass
- Low-actinic glass
A TYPE OF GLASS used for heating and sterilization,
High Thermal Resistant/Borosilicate Glass
a type of glass that is high resistance to
alkali
boron-free/soft glass
a type of glass that is special alumina-silicate glass that has
been strengthened chemically than thermally
corex
a type of glass that is poor resistance to high
temperature; used to make disposable
glassware
flint glass
a type of glass that is used for light sensitive
reagents
low-actinic glass
list all the glassware for measurements
volumetric flasks
beaker
erlenmeyer flask
test tubes
a glassware for measurement that Are frequently used
for preparation of standard solutions
volumetric flask
Wide straight sided cylindrical
vessels that are available in many sizes;
used generally for mixing and for
reagent preparation
beaker
Are often used for
preparing reagents and titration
purposes
erlenmeyer flask
____ comes in
different sizes depending on their
intended use; chemical reaction
medium
test tubes
A long and straight
sided cylindrical piece of glassware with calibration
graduated cylinder
Long cylindrical graduated
pipettes with stopcock (glass or Rubber);
used for titration
biuret
Another type of volumetric glassware used
extensively in the laboratory
pipettes
3 classification of pipettes
I. Calibration Marks/Design
II. Drainage Characteristic
III. Types
I. Calibration Marks/Design
* To _____ – delivers the exact amount it holds into a container
deliver (TD)
I. Calibration Marks/Design
- To ____ – holds the particular volume
but does not dispense the exact volume
contain (TC)
2 drainage type
blow out and self draining
characteristic of blow out pipettes
has etched rings and the exact volume is obtained when the last drop is blown out
characteristic of self draining
it does not have etched rings and liquid
is allowed to drain by gravity
2 variables under the “types of pipettes”
transfer pipettes and graduated/measuring pipette
3 variables under transfer pipettes
volumetric, pasteur, and automatic ppette
2 variables under graduated or measuring pipette
serologic and mohr
characteristic of serologic pipette
with graduation to the tip; blow out
what is the drainage characteristic of a serology pipette?
blow out
what is the characteristics of mohr pipette?
without graduation and self draining
what is the drainage characteristic of mohr pipette?
self draining
An instrument that uses centrifugal
force to separate solid matter from a
liquid suspension
centrifuge
In handling solutions, When pouring contents from a
reagent bottle into an open-mouth
container such as a beaker, use ____
a stirring rod.
Handling Solutions
1. When pouring contents from a
reagent bottle into an open-mouth
container such as a beaker, use a
stirring rod.
2. Remove the glass stopper from
reagent bottles by pulling it with the
use of ___and ___ fingers,
palm facing upward
index and middle
Using the
Laboratory
Pipette
If a small portion of the liquid is to be transferred to another container, use a _____ or ___
pipette or a medicine dropper
Using the
Laboratory
Pipette
If a small portion of the liquid is to be transferred to another container, use a pipette or a medicine dropper
Let the pipette be filled by means of ____
capillary action
Using the
Laboratory
Pipette
To hold the liquid in, place the ___ finger at
the open end of the pipette
index
if exact amounts of solutions are needed, use
an ___
aspirator
heating solutions in a test tube
FUMP
Fill - use - make - place
Fill in heating test tube
Fill the test tube with half full of liquid to be
heated
Use in heating test tube
Use a test tube holder to hold the test tube
“Make” in heating test tube
make sure the test tube is positioned 45 degrees angle when heating it
“place” in heating test tube
place it over the flame passing it back and forth
so that the flame strike the tube just below at the
liquid level but never at the bottom of the tub
2 ways to separate mixtures
filtration and decantation
it is the process
of separating solid particles
from liquid by pouring the
mixture in a filter paper
filtration
in filtration, it is the solid left on the
filter paper
residue
in filtration, it is the liquid portion at the bottom of the container
filtrate
It is the process of pouring the liquid
portion of the mixture to another container
while not disturbing the solid particles that
settle at the bottom of the containe
decantation
in decantation, it is the solid at the bottom of the
container
residue/sediments
the liquid portion on top of the
solution
decantate
Commonly used for constriction of reagent bottle
High thermal resistant/borosilicate glass
