Histological chemicals

Question 1

Acetic acid can irritate the

Answer 1

skin, eyes, respiratory

Question 2

safe dilution of acetic acid

Answer 2

1-10%

Question 3

concentrated glacial acetic acid should not be mixed with? why?

Answer 3

chromic acid, nitric acid, sodium/potassium hydroxide

it can cause explosion

Question 4

this chemical should be stored away from acids

Answer 4

ammonium hydroxide

Question 5

ammonium hydroxide should not be mixed with? why?

Answer 5

formaldehyde

it generates heat and toxic vapors

Question 6

a potential carcinogen which is dangerous to the eyes, skin, and can cause cyanosis

Answer 6

aniline

Question 7

chloroform is a carcinogenic which can affect the?

Answer 7

liver, gastrointestinal tract, reproductive organs, cns

Question 8

an environmental toxin which is toxic to kidney, mucous membrane, skin, and can cause cancer

Answer 8

chromic acid

Question 9

ethanol can irritate the?

Answer 9

skin and eyes

Question 10

ethlylene glycol is toxic to?

Answer 10

reproductive, urinary, and blood systems

Question 11

this chemical can be used as a substitute for ethlylene glycol

Answer 11

propylene-based glycol ethers

Question 12

simplest aldehyde and the type of gas that is dissolved in water to produce formalin

Answer 12

formaldehyde

Question 13

saturated formaldehyde solution

Answer 13

formalin

Question 14

formic acid can irritate the?

Answer 14

skin, eyes, and can corrode metal

Question 15

glutaraldehyde can cause severe irritation of the?

Answer 15

eyes and skin, and toxic to ingestion

Question 16

dangerous concentrated acid due to its fumes

Answer 16

hydrochloric acid

Question 17

hydrogen peroxide is harmless if used in concentrations?

Answer 17

less than 5%

Question 18

hydroxide is a combination of ___ which is corrosive to skin and eyes

Answer 18

sodium and potassium

Question 19

isopropanol can cause mild irritation to?

Answer 19

skin and eyes

Question 20

fixatives used for processing solutions contaminated with mercury

Answer 20

B-5, Helly’s, Zenker’s fixative

Question 21

mercuric fixative can be replaced with?

Answer 21

zinc formalin or glyoxal solutions

Question 22

nitric acid is corrosive to?

Answer 22

skin, mucous membrane

Question 23

this liquid can cause frost bites or thermal (cold) burns

Answer 23

liquid nitrogen

Question 24

this chemical is corrosive to eyes and mucous membrane which should be open under a hood

Answer 24

osmium tetroxide

Question 25

repeated skin contact with this chemical can cause dermatitis and slow healing ulcers

Answer 25

oxalic acid

Question 26

readily absorbed through skin and may cause increased heart rate, convulsions

Answer 26

phenol

Question 27

phenol should not be mixed with?

Answer 27

concentrated formaldehyde

Question 28

explosive when dry or when combined with metal and should not be disposed by pouring down the drain

Answer 28

picric acid

Question 29

potassium permanganate is a strong oxidant which should not be mixed with?

Answer 29

acetic acid, glycerol, ammonium hydroxide, ethanol, ethylene glycol, formaldehyde, glycerol, hydrochloric acid, hydrogen peroxide, sulfuric acid

Question 30

less toxic and used as a substitute for ethylene-based ethers

Answer 30

propylene glycol

Question 31

very toxic and can explode when placed in contact with metals

Answer 31

sodium azide

Question 32

strong oxidant, eye irritant, corrosive to most metals

Answer 32

sodium hypochlorite

Question 33

sodium hypochlorite should not be mixed with?

Answer 33

formaldehyde and diaminobenzidine

Question 34

may be used to replaced mercuric oxide when reconstituting Harris hematoxylin

Answer 34

sodium iodate

Question 35

repeated exposure to this chemical can cause impaired memory, poor coordination, mood swings, and permanent nerve damage

Answer 35

toluene/xylene

Question 36

corrosive to most metals and should not be used in tissue processors

Answer 36

zinc chloride

Question 37

concentrated acids should be __

Answer 37

added to water NEVER WATER TO ACID

Question 38

enumerate the chemicals that can irritate

Answer 38

AAACEF GIMMPSS Acetic acid Ammonium hydroxide Aniline Chromic acid Ethanol Formic Acid Glutaraldehyde Isopropanol Mercuric chloride Methanol Potassium Permanganate Sodium hypochlorite Sulfuric Acid

Question 39

enumerate the chemicals that are relatively safe

Answer 39

HOPPPASS Hydrogen peroxide Oxalic acid Potassium ferricyanide Periodic acid Propylene glycol Acetic acid Sodium biosulfate Sodium thiosulfate

Question 40

enumerate the carcinogenic propertie

Answer 40

Chromic acid Aniline Chloroform

Question 41

enumerate the toxic chemicals

Answer 41

ACCE GINS Meth Aniline Chromic acid Chloroform Ethylene glycol Glutaraldehyde Isopropanol Nitric Acid Sodium azide Methanol

Question 42

enumerate the flammable and volatile chemicals

Answer 42

Ethanol Isopentane

Question 43

enumerate the corrosive chemicals

Answer 43

SPOON MSS ZF Sodium hydroxide Potassium hydroxide Osmium tetroxide Oxalic acid Nitric Acid Mercuric chloride Sodium hypochlorite Sulfuric acid Zinc chloride Formic Acid

Question 44

enumerate chemicals handled under fume hood

Answer 44

Formic acid Osmium tetroxide Phenol

Question 45

enumerate the chemicals that can cause frostbite

Answer 45

Chilled Isopentane and Liquid Nitrogen

Question 46

enumerate the chemicals that can cause burns

Answer 46

Liquid nitrogen and oxalic acid

Question 47

enumerate the chemicals that are explosive

Answer 47

Picric acid, silver salts, sodium azide

Question 48

enumerate the oxidant chemicals

Answer 48

Potassium permanganate Sodium hypochlorite