Hazard form for Experiment 1

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OXIDATION OF BENZYLIC METHYLENE GROUP USING SODIUM DICHROMATE DIHYDRATE

Transcript of Hazard form for Experiment 1

 

5/5  

 HAZARD  AND  RISK  ASSESSMENT  FORM  –  C1  

NAME:                 DATE:  5  May  2015  

WORKBOOK  AND  PAGE  REFERENCE:  10  

NOTES      1)  Assess  Risk  Class  for  each  reagent,  process  and  product  as  per  sections  4.3  &  4.4  of  the  Safety  Handbook.  Use  numbers  1-­‐4.    2)  Assess  Risk  rating:  how  likely  is  the  hazard  to  hurt  or  injure  someone  and  how  severely?  Use  one  abbreviation  from  each  group:                HL  =  Highly  Likely;  L  =  Likely;  U  =  Unlikely;  HU  =  Highly  Unlikely  AND  XS  =  Extremely  Severe;  S  =  Severe;  M  =  Moderate;  Sl  =  Slight.    3)   In  exceptional   circumstances   a  Modified   Risk   Class  may   be   provided.   A   reason  must   be   specified   and   explicitly   approved   by   your  supervisor.    4)  Procedure  Class  is  then  the  highest  risk  class/modified  risk  class  attributed  to  any  individual  reagent,  process  or  product.    5)  An  appropriate  Reaction  Label(s)  must  be  generated  for  and  physically  accompany  each  process  (except  class  0).    6)  If  a  Scheduled  Carcinogen  is  being  used,  the  University  Risk  Assessment  for  handling  such  chemicals  must  also  be  completed.  

REAGENTS   Quantity   Risk  phrases  and  disposal   Risk  Class  

Risk  Rating  

Modified  Risk  Class  

Fe(C2O4)·2H2O     9.5  g       R21,  Harmful  in  contact  with  skin    R22  Harmful  if  swallowed  

2   S   HU    

Li2CO3     1.95  g      

R36  Irritating  to  eyes  R22  Harmful  if  swallowed  

1   S     U      

 PROCESSES   (include   distillations,  purifications,   rotary   evaporations   and  solvent  quantities)  

Quantity   Risk   phrases,   Hazard   or   SOP   that   lists  Hazards  

Risk  Class  

Risk  Rating  

Modified  Risk  Class  

Muffle  furnace         Explosion,   burns,   absorption   of   toxic  substances.    

2   XS   U    

X-­‐ray  powder  diffraction         Danger  of  radiation  exposure   2   XS   U      PRODUCTS/INTERMEDIATES   Quantity   Risk  phrases  and  disposal   Risk  

Class  Risk  Rating  

Modified  Risk  Class  

LiFeO2     ~7  g     R36  Irritating  to  eyes  R22  Harmful  if  swallowed    R42  -­‐  May  cause  sensitisation  by  inhalation  R43  -­‐  May  cause  sensitisation  by  skin  contact  

2   S     HU    

EQUIPMENT  USED  Max/Min  Temp:   670  °C   Max/Min  Pressure:   1  bar  

 HAZARD  CONTROL  AND  SPECIAL  STORAGE/WASTE  DISPOSAL  MEASURES:    Lab,  coat,  loves,  safety  classes  should  be  worn;  gloves  should  be  changed  to  reduce  chance  of  penetration  of  substances.    Waste  should  be  disposed  of  in  organic  halogenated  waste  container.    USER  DECLARATION:  I  understand  all  hazardous  aspects  of  this  process.  I  am  appropriately  trained  in  the  use  and  handling  of  all  reagents   and   equipment   identified   and   understand   necessary   precautions   to   take   in   the   event   of   an   adverse   incident.   I  acknowledge  that  I  am/am  not  handling  chemicals  belonging  to  a  Schedule  for  Restricted  or  Prohibited  Carcinogens;  if  I  am  using  such  a  chemical,  I  have  completed  an  additional  more  detailed  University  Risk  Assessment  for  handling  a  scheduled  carcinogen.  Name:_____________________________   Signature:  ___________________________________              Date:  _______________  

 REASON/S  FOR  RISK  CLASS  CHANGE:     Supervisor  or  Delegate's  name:         Supervisor  or  Delegate's  signature:         Date:    Supervisor  signature:     Floor   Safety   Officer's   signature    

(Class  4  procedures):    

Updated  February  2014