18---Saturday---Hydrogen Sulphide

Question 2

Hydrogen Sulphide What is the specific Gravity?

Answer 2

1.19

Question 3

What is the chemical symbol?

Answer 3

H2S

Question 4

Present in normal atmospheres H2S is usually produced in mines by?

Answer 4

Goaf sires in mines particularly where coal contains high sulpher coal
Explosives
seam gas
decomposition of vegetable matter containing sulpher
heating in coal containing pyrites

Question 5

Hydrogen Sulphide What are the flammable limits?

Answer 5

4.5 to 45 %

Question 6

What detectors are the most common for H2S

Answer 6

Detector tubes
smell
electrochemical cells

Question 7

What are the characteristics for H2S?

Answer 7

Colourless
sweet taste
rotten egg odour

Question 8

Hydrogen sulphide What is the percentage for the symptoms? long term exposure limit

Answer 8

10 PPM

Question 9

Hydrogen sulphide What is the percentage for the symptoms? Maximum exposure limit

Answer 9

15 PPM

Question 10

Hydrogen sulphide What is the percentage for the symptoms? irritation to the eyes and respiratory tractat first with inflamation of the eyelids and severe headache

Answer 10

100 PPM

Question 11

Hydrogen sulphide What is the percentage for the symptoms? within 10 mins intense irritation of the eyes and the throat which becomes unbearable at the end of thirty minutes.

Answer 11

200 PPM

Question 12

Hydrogen sulphide What is the percentage for the symptoms? This is the highest limit that can be breathed without causing death and serious inflamation of the eyes ,nasal, catarrh, coughing, palpatation, muscular weakness, fainting, cold sweats.

Answer 12

500 PPM

Question 13

Hydrogen sulphide What is the percentage for the symptoms? Serious symptoms within a few minutes

Answer 13

600 PPM

Question 14

Hydrogen sulphide What is the percentage for the symptoms? Highly dangerous to human life, depression, stupor, unconsiousness and death

Answer 14

700 PPM

Question 15

Hydrogen sulphide What is the percentage for the symptoms? Very dangerouse to life death almost immediately due to asphxiation after paralysis of the respiratory system

Answer 15

1000 PPM

Question 16

Hydrogen sulphide 10 PPM

Answer 16

long term exposure limit

Question 17

Hydrogen sulphide 15 PPM

Answer 17

Maximum exposure limit

Question 18

Hydrogen sulphide 100PPM

Answer 18

irritation to the eyes and respiratory tractat first with inflamation of the eyelids and severe headache

Question 19

Hydrogen sulphide 200 PPM

Answer 19

within 10 mins intense irritation of the eyes and the throat which becomes unbearable at the end of thirty minutes.

Question 20

Hydrogen sulphide 500 PPM

Answer 20

This is the highest limit that can be breathed without causing death and serious inflamation of the eyes ,nasal, catarrh, coughing, palpatation, muscular weakness, fainting, cold sweats.

Question 21

Hydrogen sulphide 600 PPM

Answer 21

Serious symptoms within a few minutes

Question 22

Hydrogen sulphide 700 PPM

Answer 22

Highly dangerous to human life, depression, stupor, unconsiousness and death

Question 23

Hydrogen sulphide 1000 PPM

Answer 23

Very dangerouse to life death almost immediately due to asphxiation after paralysis of the respiratory system