University of Rochester
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CHEMICAL HYGIENE PROGRAM

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Appendix 11

Low Risk Spills

(Minor Spills)

Many hazardous substances necessitate special clean-up procedures to minimize hazards to clean-up personnel.  Spills can be classified as either a minor clean-up procedure or a major spill. Some chemicals may present potential adverse health effects unless the proper actions are taken.  Major spill clean-up should not be attempted by laboratory personnel.  If personnel are present at the time of a major spill and a spill kit is readily available, the contents of the kit can be emptied onto the spill to help stabilize the spill until the Spill Team arrives.  Contact Security (x13) to activate the University's Spill Response Team.

Minor spills, also called “Low Risk Spills”, do not expose laboratory employees to over-exposures because they present a lower hazard to personnel.  These “Low Risk Spills” can be cleaned up immediately by the laboratory staff wearing the appropriate PPE.


HOW TO CLEAN UP A SMALL “LOW RISK” LIQUID SPILL

Introduction:

This procedure is for the clean up of “low risk” liquid chemical spills of less than 1 gallon (4 liters).  Waste collected from “low risk” spills must be packaged and disposed of through the Hazardous Waste Management Unit.

CAUTION:  This procedure is NOT to be used to clean up any liquid that is not listed as a “low risk” chemical.  Trained laboratory staff must follow the information listed below and observe any special notes listed for the chemical.

Location of Spill Supplies:

The Lab Manager / Laboratory Safety Officer of each lab complex shall have a supply of spill cleanup supplies to absorb or neutralize spilled materials.

Spill supplies:

  • Absorbent materials or neutralizers:
    • Speedy-Dri (general absorber, including flammable liquids)
    • Absorbent pads or pillows (general absorber)
    • Boric acid (for base spills, pH > 9)
    • Sodium bicarbonate (for many acids, pH < 5)
  • Plastic scoop or scraper
  • Plastic bucket or drum or large trash bag for waste (handle as hazardous waste)
  • Hazardous waste tag

PPE:

All personnel cleaning spills are to wear chemical protective gloves (double glove), safety glasses or face shield, and clothing covers (lab coat or Tyvec suit).  Personnel can always utilize additional PPE.

Procedure:

    1. Evacuate all personnel from spill area.
    2. Gather all necessary PPE and cleanup supplies.
    3. Determine planned actions to minimize time in spill area.
    4. Put on protective gloves, safety glasses or face shield, lab coat or Tyvec suit.
    5. Secure liquid spill source if still leaking.
    6. Contain spill by covering spilled material with neutralizer, absorbent, pad or pillow.  Use generous quantity so no visible liquid is visible.  Use plastic scoop to assist in covering spill.
    7. Estimate volume of spill (in gallons).
    8. Place contaminated sorbent materials into waste container (large plastic bag, plastic bucket, etc.).  Take off outer gloves and place in waste container.  Seal waste container.
    9. Surface clean area of spill with detergent/water to remove residual chemicals from surfaces.
    10. Label waste container and place into Hazardous Waste Satellite Accumulation Area.
    11. Wash hands thoroughly with soap and water.


HOW TO CLEAN UP A SMALL “LOW RISK” SOLID SPILL

Introduction:

This procedure is for the clean up of “low risk” solid chemical spills of less than 8 pounds (4 kilograms).  Waste collected from “low risk” spills must be packaged and disposed of through the Hazardous Waste Management Unit.

CAUTION:  This procedure is not to be used to clean up any solid that is not listed as a “low risk” chemical.  Trained laboratory staff must follow the information listed below and observe any special notes listed for the chemical.

Location of Spill Supplies:

The Lab Manager /Laboratory Safety Officer of each lab complex shall have a supply of spill cleanup supplies to absorb or neutralize spilled materials.

Spill supplies:

  • Plastic scoop or scraper
  • Plastic bucket or drum or large trash bag for waste
  • Hazardous waste tag

PPE:

All personnel cleaning spills are to wear chemical protective gloves (double glove), safety glasses or face shield, and clothing covers (lab coat or Tyvec suit).  Personnel may always elect to wear additional PPE.

Procedure:

    1. Evacuate all personnel from spill area.
    2. Gather all necessary PPE and cleanup supplies.
    3. Determine planned actions to minimize time in spill area.
    4. Put on nitrile gloves, safety glasses or face shield, lab coat or Tyvec suit.
    5. Scoop or gently brush up solid material while minimizing dust generation.  Solids that do not react with water can be sprayed with a water mist.  Place collected material into waste container.
    6. Wipe down contaminated material with a damp mop, paper towels or lab wipes.
    7. Using paper towels, surface clean area of spill with detergent/water to remove residual chemicals from surface.
    8. Place paper towels/wipes and gloves into waste container.
    9. Label waste container and place into Hazardous Waste Satellite Accumulation Area.
    10. Wash hands thoroughly with soap and water.


“LOW RISK” CHEMICAL LISTS

For Small Spill Clean Ups

November 2005

NOTE:  The information found in the listings below is believed to be correct.  Always obtain and read the MSDS for the chemical to verify the hazard rating of the chemical and additional supplemental information to clean up small-scale chemical spills.

“Low Risk” COMPOUND

CAS NO.

Health

Fire

Reactivity

Special Notes

Acetone

67641

1

3

0

 

Agar

9002180

0

1

0

 

Albumin (human)

70024907

1

0

0

Handle as biohazard

Alconox

1025000

0

0

0

 

Aldicarb

116063

1

0

1

 

Alumina (aluminum oxide)

1344281

1

0

0

 

Amino acetic acid

56406

1

1

0

 

Aluminum sulfate

7784318

1

0

0

 

Ammonium acetate

631618

2

1

0

 

Ammonium benzoate

1863634

1

0

0

 

Ammonium bitartrate

2214422

1

0

0

 

Ammonium bromide

12124979

1

0

0

 

Ammonium chloride

12125029

1

0

0

 

Ammonium citrate

3012655

1

0

0

 

Ammonium persulfate

7727540

1

3

0

 

Ammonium sulfate

7783202

1

0

0

 

Ammonium thiosulfate

7783188

0

0

2

 

Amyl alcohol, n-

71410

1

3

0

 

Amyl benzene, n-

538681

1

2

1

 

Amyl butyrate, n-

540181

0

2

0

 

Amyl ether

693652

1

2

0

 

Amyl lactate

6382065

1

2

0

 

Amyl laurate

5350038

0

1

0

 

Amyl naphthalene

1320270

0

1

0

 

Amyl phenyl phenyl ether

70289360

0

2

0

 

Amyl salicylate

2050080

0

1

0

 

Amyl stearate

6382134

0

1

0

 

Amylcyclohexane

4292926

1

0

0

 

Anisole

100663

1

2

0

 

Antifreeze

107211

1

1

0

 

Ascorbic acid

50817

1

1

0

 
           

Bactopeptone

51142188

1

1

0

 

Barium carbonate

513779

1

0

0

 

Barium chloride

10326279

1

0

0

 

Barium nitrate

10022318

2

0

0

 

Barium sulfate

7727437

1

0

0

 

Bentonite0

1302789

0

0

0

 

Benzoic acid

65850

2

1

0

 

Benzyl alcohol

100516

2

1

0

 

Benzyl benzoate

120514

1

1

0

 

Benzyl ether

103504

0

1

0

 

Benzyl salicylate

118581

0

1

0

 

Bis(2-ethylhexyl) maleate

142165

1

1

0

 

Bis(2-ethylhexyl)succinate

2915573

0

1

0

 

Bleach

7778543

2

0

0

 

Boric acid

10043353

1

0

0

 

Buffer solutions (for pH, all)

Multiple

1

0

0

 

Butanediol, 1,2-

584032

1

2

0

 

Butanediol, 1.3-

107880

1

1

0

 

Butanediol, 1,4-

110634

1

1

0

 

Butanediol, 2,3-

513859

1

1

0

 

Butene-1,4-diol, 2-

110656

1

1

0

 

Butyl alcohol

71363

1

3

0

 

Butly oleate, n-

142778

0

1

1

 

Butylstearate

123955

0

1

0

 

Butylbenzylphthalate

85687

1

1

0

 

Butylene glycol, 1,3-

107880

1

1

0

 

Butyrolactone

96480

1

2

0

 
           

Calcium carbonate

471341

2

0

0

 

Calcium chloride

10043524

1

0

0

 

Calcium oxide

1305788

1

0

0

 

Calcium sulfate

7778189

0

0

0

 

Carnauba wax

8015869

1

1

0

 

Castor oil

8001794

1

1

0

 

Cellulose acetate

9004357

1

0

0

 

Cesium chloride

7647178

1

1

0

 

Citric acid

77929

2

1

0

 

Cobalt naphthenate

61789513

1

2

0

 

Cod liver oil

8001692

0

1

0

 

Copper carbonate

1184641

1

0

1

 

Corn oil

8001307

0

1

0

 

Cresyl acetate, p-

140396

1

2

0

 

Cupric acetate

6046931

0

0

0

 

Cupric chloride

13933170

0

0

0

 

Cupric nitrate

19004194

0

0

0

 

Cupric sulfate

7758997

2

0

0

 

Cyclopentanol

96413

1

2

0

 
           

Decane

124185

1

2

0

 

Decane, 1-

872059

0

2

0

 

Developer, Photo (working solutions)

Mixture

1

0

0

Concentrates are not low risk

Dextran

9004540

0

1

0

 

Dextrose

50997

0

1

0

 

Diatomaceous earth

68855549

0

0

0

 

Diethyl maleate

141059

1

1

0

 

Diethyl malonate

105533

1

2

0

 

Diethly succinate

123251

1

2

0

 

Diethyene glycol dimethyl ether

111966

1

2

1

 

Diethylene glycol monobutyl ether acetate

124174

1

1

0

 

Diethylene glycol monomethyl ether

111773

1

2

0

 

Diisodecyl phthalate

26761400

0

1

0

 

Diisooctyl phthalate

27554263

1

1

0

 

Diisopropylbenzene, 1,3-

99627

0

2

0

 

Dimethyl sebacate

106796

1

1

0

 

Dimethyl sulfoxide

67685

2

1

0

Rapidly absorbed through skin, use caution if mixed with other chemicals.

Dimethyl terephthalate

120616

1

1

0

 

Diphenyl phthalate

84628

1

1

0

 

Diphenylethane

103297

0

1

0

 

Diphenylmethane

101815

1

1

0

 

Dipropylene glycol

110985

1

1

0

 

Dodecane

112403

1

2

0

 

Dodecyl benzene

25265785

1

1

0

 

Drierite

7778189

1

0

0

 
           

Ethoxy benzene

103731

0

2

0

 

Ethyl acetamide

625503

0

1

0

 

Ethyl alcohol

75175

0

3

0

 

Ethyl benzoate

93890

1

1

0

 

Ethyl benzoyl acetate

94020

0

2

0

 

Ethyl butyrylacetate

123660

1

2

0

 

Ethyl malonate

105533

1

2

0

 

Ethyl oxalate

95921

1

2

1

 

Ethyl phenylacetate

101973

0

1

1

 

Ethylacetamide, N-

65503

0

1

0

 

Ethylene glycol

107211

1

1

0

 

Ethylene glycol diacetate

111557

1

2

0

 

Ethylene glycol monoacetate

542596

0

1

0

 

Ethylhexanoic acid, 2-

149575

1

1

0

 

Ethylnaphthalene, 2-

1317379

1

0

1

 
           

Fixer (working solution)

Multiple

1

0

0

Concentrates are not low risk

Formalin (10% formaldehyde)

500000

2

2

0

Only if under 250 ml volume

           

Gelatin

9000708

0

0

0

 

Glucose

50997

1

0

0

 

Glucerine

56815

1

1

0

 

Glycerol

56815

1

1

0

 

Glycerol triacetate

102761

0

1

0

 
           

HEPES

7365459

1

1

1

 

Heptanol

543497

0

2

0

 

Hexadecane

544763

1

1

0

 

Hexanedione, 2,5-

110134

1

2

0

 

Hexyl methacrylate

142096

0

2

0

 

Hydroxybenzaldehyde, 4-

123080

0

2

0

 
           

Iron oxide

1309382

0

0

0

 

Isoamyl alcohol

123513

1

2

0

 

Isopropyl alcohol

67630

1

3

0

 
           

Lactic acid

50215

2

0

0

 

Lactic acid, methyl ester

547648

1

2

0

 

Lanolin

8006540

1

1

0

 

Linseed oil

8001261

1

1

0

 

Lithium carbonate

554132

1

0

0

 

Lithium sulfate

10377487

2

0

0

 
           

Magnesium

7439954

0

1

1

 

Magnesium carbonate

23389335

1

0

0

 

Magnesium chloride

7791186

1

0

0

 

Magnesium nitrate

102213157

1

0

0

 

Magnesium oxide

1309484

1

0

0

 

Magnesium sulfate

7487889

1

0

0

 

Manganous sulfate

10034965

1

0

0

 

Mercury

7439976

2

0

0

Thermometers only! Follow mercury thermometer clean up procedure

Methanol

67561

1

3

0

 

Methyl benzoate

93583

1