5. In order for chemist to be prepared for an experiment, they must understand h
ID: 555996 • Letter: 5
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5. In order for chemist to be prepared for an experiment, they must understand how to safely work with the substances involved. Even H,0 is hazardous when not treated with respect. In the Safety section we introduced the Globally Harmonized System (GHS) clas- sification of chemicals. The GHS system is designed to warn users from the most severe to the more mild exposures. Using the GHS system and literature research on the salts we will be using, complete the table below and make a copy in your lab notebook. This will all be used to help you evaluate the "best" hot and cold pack material in your report. Prices are provided. As you look at the Safety Data Sheets (formally MSDS) and other data consider what is most likely to be important in our situation. TABLE 12.1 Cost and Impacts of Salts Used in This Experiment Refer to Safety Data Sheets (SDS) (formally MSDS) rather than generic health sites. Chemical companies are useful. Formula Price EnvironmentalS Issue or Most Likely Production Issue or Disposal References (assume the per Considerations Designation for Our Isses Salt for OurIssues Situation Ammonium Chloride Sodium Nitrate $0.15 Magnesium Sulfate $0.04 Calcium Chloride $0.09 Magnesiunm Chloride $0.03 Potassium Nitrate $0.09 Magnesiunm Nitrate $0.04 Potassium Chloride $0.06 1 Price as per 500 g purchased. ? SDS is safety data sheets.Explanation / Answer
Salt
Formula for salt, anhydrous
Price pre gram
Environmental consideration from msds
GHS designation
Most like issue for our situation
Production or disposal issue
references
Ammonium chloride
NH4Cl
$0.07
Hazardous
Wear gloves, mask. safety shooes, eye protection , approne
Misused in explosive material
Disposed in closed container.
NH4Cl MSDS
Sodium nitrate
NaN02
$0.15
Hazardous
Wear gloves, mask ,safety shooes, eye protection , approne
Misused in explosive material
Pick up spill for recovery or disposal and place in a closed container. Small amounts of residue may be flushed to sewer with plenty of water.
NaN02 MSDS
Magnesium sulphate
MgS04
$0.04
Non hazardous
Wear gloves, safey shooes, eye protection , approne
No issue
Use a shovel to put the material into a convenient waste disposal container.
MgS04 MSDS
Calcium chloride
CaCl2
$0.09
Non hazardous
Wear gloves, safey shooes, eye protection , approne
No issue
Use at least a NIOSH-approved N95 half-mask disposable or reuseable particulate respirator.
MSDS CaCl2
Magnesium chloride
MgCl2
$0.03
Non hazardous
Wear gloves, safey shooes, eye protection , approne
No issue
Empty containers must be tripled rinsed prior to disposal.
MSDS MgCl2
Pottasium nitrate
KN03
$0.09
Hazardous
Wear gloves, mask , safety shooes, eye protection , approne
Misused in explosive material
Avoid release to the environment
MSDS KN03
Magnesium nitrate
Mg[N03]2
$0.04
Hazardous
Wear gloves, mask, safety shooes, eye protection , approne
Misused in explosive material
Avoid release to the environment
MSDS Mg[N03]2
Pottasium chloride
KCl
$0.06
Non hazardous
Wear gloves, safey shooes, eye protection , approne
No issue
Use appropriate tools to put the spilled solid in a convenient waste disposal container. Finish cleaning by spreading water on the contaminated surface
MSDS
KCl
Salt
Formula for salt, anhydrous
Price pre gram
Environmental consideration from msds
GHS designation
Most like issue for our situation
Production or disposal issue
references
Ammonium chloride
NH4Cl
$0.07
Hazardous
Wear gloves, mask. safety shooes, eye protection , approne
Misused in explosive material
Disposed in closed container.
NH4Cl MSDS
Sodium nitrate
NaN02
$0.15
Hazardous
Wear gloves, mask ,safety shooes, eye protection , approne
Misused in explosive material
Pick up spill for recovery or disposal and place in a closed container. Small amounts of residue may be flushed to sewer with plenty of water.
NaN02 MSDS
Magnesium sulphate
MgS04
$0.04
Non hazardous
Wear gloves, safey shooes, eye protection , approne
No issue
Use a shovel to put the material into a convenient waste disposal container.
MgS04 MSDS
Calcium chloride
CaCl2
$0.09
Non hazardous
Wear gloves, safey shooes, eye protection , approne
No issue
Use at least a NIOSH-approved N95 half-mask disposable or reuseable particulate respirator.
MSDS CaCl2
Magnesium chloride
MgCl2
$0.03
Non hazardous
Wear gloves, safey shooes, eye protection , approne
No issue
Empty containers must be tripled rinsed prior to disposal.
MSDS MgCl2
Pottasium nitrate
KN03
$0.09
Hazardous
Wear gloves, mask , safety shooes, eye protection , approne
Misused in explosive material
Avoid release to the environment
MSDS KN03
Magnesium nitrate
Mg[N03]2
$0.04
Hazardous
Wear gloves, mask, safety shooes, eye protection , approne
Misused in explosive material
Avoid release to the environment
MSDS Mg[N03]2
Pottasium chloride
KCl
$0.06
Non hazardous
Wear gloves, safey shooes, eye protection , approne
No issue
Use appropriate tools to put the spilled solid in a convenient waste disposal container. Finish cleaning by spreading water on the contaminated surface
MSDS
KCl
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