Caesium chloride

Hazardous Substances Policy - Assessment

CHEMICAL HAZARD AND RISK ASSESSMENT

School of Biosciences

Name of supervisor / Lynne E. Macaskie / Assessment Number* / 1829
Signature
Assessor / M. Paterson-Beedle / Date of Assessment / 11 July 2001

Signature

Notes A School COSHH form in Word is available on the School Server.

Available from the Health and Safety Unit.

Guidance on making an assessment is given in Making a Chemical Hazard and Risk Assessment.

Guidance is also available from Guidance on Completing the Chemical Hazard and Risk Assessment Form.

Use a continuation sheet to expand any section of this form in hard copy version.

1 / LOCATION OF THE WORK ACTIVITY / Tracer Laboratory N101 and Laboratory T102
2 / PERSONS WHO MAY BE AT RISK
List names where possible / M. Paterson-Beedle and all other current and future research workers in laboratories N101 and T102
3 / ACTIVITY ASSESSED / Uptake of caesium by Citrobacter sp. cells (and biofilm)
4 / MATERIALS INVOLVED / Attach copies of data sheet(s)
NAME / AMOUNT
max/stored / HAZARD / RISK PHRASES / HAZDAT NO*** / BIOSCIENCESNO***
Caesium chloride / 0.1684 g / Not available (source: Fisher) / Not available (source: Fisher) / Not available
Safety phrases: avoid contact with skin and eyes (S 24/25)
5 / INTENDED USE**
Give brief details and attach protocol/instructions
Study the bioaccumulation of caesium by immobilised Citrobacter sp. cells in packed bed reactors (working volume of ca. 13 mL)
Composition of the challenge solution: caesium chloride (1 mM, 0.1684 g/L), glycerol-2-phosphate (5 mM) in citrate buffer (2 mM), pH 6.0.
6 / RISKS to HEALTH and SAFETY from INTENDED USE
From personal exposure or hazardous reactions. Refer to OELs, flash points, etc., as appropriate. Are pregnant women, breast-feeding mothers especially at risk?
Potential health effects: may cause eye irritation; may cause skin irritation; ingestion of large amounts may cause gastrointestinal irritation; may cause respiratory tract irritation.
Stable at room temperature. Conditions to avoid: incompatible materials (strong oxidising agents, strong acids), dust generation, moisture and excess heat.
7 / CONCLUSIONS ABOUT RISKS
Is level of risk acceptable? Can risk be prevented or reduced by change of substance/procedure? Are control measures necessary?
Risk level is acceptable.
Personal protection: safety glasses, gloves and good ventilation.
8 / CONTROL MEASURES
Additional to Good Chemical Practice
Observe good chemical practise, including clothing, gloves and goggles.
9 / INSTRUCTION/TRAINING
Specify course(s) and/or special arrangements.
None
10 / MONITORING
Performance of control measures,
N/A
Personal exposure / Health Surveillance
11 / WASTE DISPOSAL PROCEDURE
See School Server for Approved Procedure Document on specific Chemical Waste Disposal.
Dispose of the outlet solutions from the bioreactors (containing less than 1 mM of caesium chloride) in appropriate sink (Tracer Laboratory, N101 or Laboratory T102).
12 / REVIEW
Enter the date or circumstances for review of assessment (maximum review interval 5 years)
In 5 years or if quantities or procedures significantly alter
13 / EMERGENCY ACTION
TO CONTROL HAZARDS / To stabilize situation eg spread absorbant on liquid spill; eliminate sources of ignition, etc.
Eliminate sources of ignition
TO PROTECT PERSONNEL / Evacuation, protection for personnel involved in clean-up, Special First Aid
First aid measures:
Eyes: Flush eyes with plenty of water for at least 15 min, occasionally lifting the upper and lower eyelids. If irritation develops, get medical aid.
Skin: Flush skin with plenty of soap and water for at least 15 min while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. Wash clothing before reuse.
Ingestion: Do not induce vomit. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid.
Inhalation: Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
TO RENDER SITE OF EMERGENCY SAFE / Clean-up/decontamination
Spills: vacuum or sweep up materials and place into a suitable disposal container. Clean up spills immediately. Avoid generating dusty conditions. Provide ventilation. Do not get water inside containers.
CONTACT PHONE

10.10.00

* Prefix T is used for Teaching Assessment Number.

** Please include amount of chemicals used and how.

*** Hazdat No is the UNICOSHH datasheet report number.

Biosciences No is the Biosciences data sheet number.

UNICOSHH IS A CHEMICAL DATABASE ON THE HEALTH AND SAFETY UNIT SERVER.

BIOSCIENCES DATA SHEETS ARE AVAILABLE IN THE SCHOOL SAFETY OFFICE.