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Material Safety Data Sheet

Identity: Potassium Dichromate reference cell.
Cell Identity: 'PDC'.

General Information
Manufactured by: Optiglass Ltd.,
52/54 Fowler Road,
Phone: +44 (0)20 8501 5550.
Date of preparation:
28 March 2001.
Prepared by:
John Hammond.

Ingredients/Identity Information
Blank Contains: Aqueous solution of 0.001M perchloric acid.  
Test Cell Contains: Aqueous solution of 0.001M perchloric acid (HClO4) with Potassium Dichromate (K2Cr2O7) from 20 mg/l to 100 mg/l.

Physical/Chemical Characteristics
Appearance: Transparent liquid heat fusion sealed in a quartz cell, 3ml.
Boiling Point: 100 °C.
Specific Gravity: 1.0.
Vapor Pressure (mm Hg): n/a.
Melting Point: 0 °C.
Vapor Density: n/a.
Evaporation Rate: n/a.
Solubility in Water: soluble.

Fire and Explosion Hazard
Flash point: n/a.
Flamable limits: non flamable.
Extinguishing Media: n/a.
Special Fire Fighting Procedure: n/a.
Unusual Fire and Explosion Proceures: n/a.

Reactivity Data
Stability: stable.  
Conditions to avoid: Avoid contact with incompatible materials if broken.  
Incompatible Materials: Perchloric acid: acids, combustible materials, metals, oxidizing agents, metal oxides, halo carbons, metal salts, and bases. Potassium dichromate: organic combustible substances, anhydrides, hydrazine and derivatives, hydroxylamine, sulfides/water, reducing agents, concentrated sulfuric acid, glycerol, boron, iron, magnesium, metals in powder form.  
Hazardous Decomposition Products: Perchloric acid: can produce acid halides and oxides of chlorine.
Health Hazard Data
Route of Entry - Inhalation: no (sealed cells).
Route of Entry - Skin: no (sealed cells).
Route of Entry - Ingestion: no (sealed cells).
Health Hazard acute and chronic: Due to the small size and volume of the sealed cells and the complete sealing of the materials in quartz cells the only contact that can be made to the chemicals is through the breakage of the cells. The quartz shards would be more hazardous and must be handled as with any glass breakage.
Perchloric acid: Direct skin contact will cause skin irritation.
Carcinogenicity: potassium dichromate is a suspected carcinogen. 
Signs and symptoms of exposure: possible skin irritation.
Medical Conditions aggravated by exposure: none.
Emergency and First Aid Procedures: In the event of breakage of any of cells, wash with water and safely dispose of the quartz pieces.

Precautions for Safe Handling and Use
Steps if material Released/Spill: In the event of breakage of any of cells, wash with water and safely dispose of the quartz pieces
Waste disposable method: The only waste generated by the breakage would be the quartz container. Dispose of the quartz pieces as you would for any broken laboratory glassware.
Precautions to be taken in Handling and Storing: none.

Control Measures
Respiratory Protection: none required.
Ventilation: none required.
Protective Gloves: Chemical resistant gloves.
Eye Protection: Chemical resistant goggles.
Other protective equipment: Have immediate availability of eye wash.
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