MSDS and ToxNet



X-ray Fixer


 X-ray fixer,

Photographic (X-ray) fixer is a mix of chemicals used in the final step in the photographic processing of film or paper. The fixer stabilizes the image, removing the unexposed silver halide remaining on the photographic film or photographic paper, leaving behind the reduced metallic silver that forms the image.1
 During the fixing process, light-sensitive silver-halide crystals present on radiographic films are released as silver-thiosulfate. The concentration of silver in spent fixer solutions is in the range of 3,000 to 8,000 mg/L, while the regulatory level of silver is 5 mg/L.2

Review the MSDS and answer the following questions:
What are the health risks associated with this chemical?
The health hazards are: skin corrosion/irritation, serious eye damage/eye irritation, and reproductive toxicity.

Is the chemical a carcinogen?
Not classifies as to carcinogenicity to humans.

What personal protective equipment or special precautions should be taken when working with this chemical?
According to MSDS, the precautions of safe handling are:
·      Obtain special instructions before use.
·      Do not handle until all safety precautions have been red and understood.
·      Avoid contact with eyes, skin, and clothing.
·      Wear appropriate personal protective equipment.
·      Provide adequate ventilation.
·      Avoid prolonged exposure.
·      Observe good industrial hygiene practices.
·      Wash thoroughly after handling.
·      When use don not eat or drink.

If this is a chemical found in your workplace, what training/education were you given about any risks associated with this chemical?
 As a Dental Assistant Instructor and working in the dental laboratory, we used to handle and use the x-ray fixer solution to process the x-ray films on daily basis, so, one of the standards in my work place is that all the employees prior they start to work they should take a training course on the materials and chemicals that will be used during working in the dental laboratory in order provide the information and knowledge about the health and environment risk factors, the precautions that need to be taken, the right and safe ways to handle and dispense the dental materials and chemicals in order to create a safe working environment and to follow the safety guidelines. The training course is provided be the employer.   

Look up the chemical using the ToxNet databases you mastered while viewing the enviRN-EVIDENCE program. Were there any discrepancies regarding the potential health effects noted in the MSDS?
ToxNet database doesn’t have information about the x-ray fixer solution, so there are no discrepancies regarding the health effect.
In conclusion, MSDS is considered the proper element that can be used to explore the materials and chemicals that used in the dental field. Regarding the MSDS website, it’s clear, informative, easy to read and get information regarding the potential health risks and the protection methods for the major parts except some medical terms that need specialist to understand.

Resources
1. https://en.wikipedia.org/wiki/Photographic_fixer
2. https://www.dentalcare.com/en-us/professional-education/ce-courses/ce499/silver-containing-wastespent-x-ray-fixer-solution


   




           



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