hazard form for experiment 1
DESCRIPTION
OXIDATION OF BENZYLIC METHYLENE GROUP USING SODIUM DICHROMATE DIHYDRATETRANSCRIPT
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