Review of chemical storage and handling protocols in the Environmental Radioactivity laboratories of



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Appendix 5 Chemical incompatibility assessment for EnRad holdings


Chemical compatibility assessment for the EnRad laboratories as of February 2009.

Table A5.1 Incompatibility classes as taken from the Cameo and NOAA website (http://cameochemicals.noaa.gov/)

Incompatibilities













Incompatible 1

Exothermic reaction. May generate heat and/or cause pressuriasation




Incompatible 2

Reaction may be intense or violent







Incompatible 3

May form explosive peroxides







Incompatible 4

Increased sensitivity to detonation







Incompatible 5

Generates water soluble toxic products







Incompatible 6

May be hazardous but unknown







Incompatible 7

Reaction proceeds with explosive violence and/or forms explosive products




Incompatible 8

Explosive when mixed with combustible material




Incompatible 9

Combination liberates gaseous products, including both flammable and toxic gases. May cause presssurisation

Incompatible 10

Combination liberates combustion-enhancing gas (eg oxygen). May cause pressurisation

Incompatible 11

Forms very unstable explosive metallic compounds




Incompatible 12

Heat generated from chemical reaction may initiate explosion




Incompatible 13

Spontaneous ignition of reactants or products due to reaction heat




Incompatible 14

Combination liberates gaseous products, at least one of which is toxic. May cause pressurisation



Table A5.2 Cross reactivity assessment for solid poisons held by EnRad

Reactivity Data information for Solid Poisons held by EnRad.

Chemical Name

Barium Chloride

Diphenylamine

Lead Nitrate

Mercurisorb (Silver Nitrate)

Barium Chloride

N/A

Incompatible 5

Incompatible 1

Incompatible 1

Diphenylamine

Incompatible 5

N/A

Incompatible 1, 7, 11-14

Incompatible 1, 7, 11-14

Lead Nitrate

Incompatible 1

Incompatible 1, 7, 11-14

N/A

Incompatible 6

Mercurisorb (Silver Nitrate)

Incompatible 1

Incompatible 1, 7, 11-14

Incompatible 6

N/A

Suitable Storage Groups identified

Updated 13/11/2008. PSM







Group 1: PSC19.01

Class










Barium Chloride

6.1










Diphenylamine

6.1










Lead Nitrate*

5.1 (6.1)










Mercurisorb (Silver Nitrate)*

5.1 (6.1)










*Lead Nitrate and Mercurisorb (Silver Nitrate) are incompatible with the other Class 6 chemicals. Due to limited quantities and limited storage capacity these are to be stored in the same Poisons Cabinet on different shelves. PSM



Table A5.3 Cross reactivity assessment for solids held by EnRad and stored in dessicators

Chemical Name

Ammonium Persulfate*

DDTC

Ferric Chloride

Potassium Permanganate

Sodium Hydrogen Sulfate

Sodium Hydroxide

Ammonium Persulfate*

N/A

Incompatible 1, 2, 13, 14, 15

Incompatible 1, 9

None

Incompatible 1, 9

Incompatible 1, 7, 10, 13, 14

DDTC

Incompatible 1, 2, 13, 14, 15

N/A

None

Incompatible 1, 2,13, 14, 15

None

Incompatible 1, 14

Ferric Chloride

Incompatible 1, 9

None

N/A

Incompatible 1, 9

None

Incompatible 1, 3

Potassium Permanganate

None

Incompatible 1, 2,13, 14, 15

Incompatible 1, 9

N/A

Incompatible 1, 9

Incompatible 1, 7, 10, 13, 14

Sodium Hydrogen Sulfate

Incompatible 1, 9

None

None

Incompatible 1, 9

N/A

Incompatible 3

Sodium Hydroxide

Incompatible 1, 7, 10, 13, 14

Incompatible 1, 14

Incompatible 1, 3

Incompatible 1, 7, 10, 13, 14

Incompatible 3

N/A






















*It is not required that Potassium Permanganate be stored in a dessicator. As a Class 5.1 chemical it has been assessed as best stored with Ammonium Persulfate, and is thus included in this group. PSM

Suitable Storage Groups identified

Updated 20/11/2008. PSM













Group 1

Class
















DDTC

None
















Ferric Chloride

8
















Sodium Hydrogen Sulfate

8
















Group 2



















Sodium Hydroxide*

8
















Ammonium Persulfate

5.1
















Potassium Permanganate

5.1





































*Sodium Hydroxide is incompatible with the Class 5.1 chemicals. Due to limited quantities and limited storage capacity these are to be stored in the same Dessicator on different shelves, until a new solid corrosives cabinet is acquired. Ensure Sodium Hydroxide has a tray sufficient to capture any spillage. PSM



Table A5.4 Reactivity data held for flammable liquids held by EnRad

Reactivity Data information for Flammable liquids held by EnRad.

Chemical Name

Acetic Acid, Glacial

Acetone

Chloroform

Ethanol

Isopropanol

LSC Cocktails

Nitromethane

Toluene

Tri-butyl phosphate

Xylenes

Acetic Acid, Glacial

N/A

None

None

Incompatible 1, 2

Incompatible 1, 2

Unknown

None

None

None

None

Acetone

None

N/A

Incompatible 2*

Incompatible 3

Incompatible 3

Unknown

Incompatible 4

None

None

None

Chloroform

None

Incompatible 2*

N/A

None

None

Unknown

Incompatible 4

None

None

None

Ethanol

Incompatible 1, 2

Incompatible 3

None

N/A

None

Unknown

Incompatible 1, 2

None

None

None

Isopropanol

Incompatible 1, 2

Incompatible 3

None

None

N/A

Unknown

Incompatible 1, 2

None

None

None

LSC Cocktails

Unknown

Unknown

Unknown

Unknown

Unknown

N/A

Unknown

Unknown

Unknown

Unknown

Nitromethane

None

Incompatible 4

Incompatible 4

Incompatible 1, 2

Incompatible 1, 2

Unknown

N/A

Incompatible 1

None

Incompatible 1

Toluene

None

None

None

None

None

Unknown

Incompatible 1

N/A

None

None

Tri-butyl phosphate

None

None

None

None

None

Unknown

None

None

N/A

None

Xylenes

None

None

None

None

None

Unknown

Incompatible 1

None

None

N/A

*This incompatibility taken from the ChemWatch MSDS. Not indicated on NOAA website.

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