Whatever cannot be saved for recovery or recycling should be managed in an appropriate and approved waste disposal facility. Processing, use or contamination of this product may change the waste management options. State and local disposal regulations may differ from federal disposal regulations. Dispose of container and unused contents in accordance with federal, state and local requirements.
Ventilation System: A system of local and/or general exhaust is recommended to keep employee exposures as low as possible. Local exhaust ventilation is generally preferred because it can control the emissions of the contaminant at its source, preventing dispersion of it into the general work area. Please refer to the ACGIH document, Industrial Ventilation, A Manual of Recommended Practices, most recent edition, for details.
Personal Respirators (NIOSH Approved): For conditions of use where exposure to dust or mist is apparent and engineering controls are not feasible, a particulate respirator (NIOSH type N95 or better filters) may be worn. If oil particles (e.g. lubricants, cutting fluids, glycerine, etc.) are present, use a NIOSH type R or P filter. For emergencies or instances where the exposure levels are not known, use a full-face positive-pressure, air-supplied respirator. WARNING: Air-purifying respirators do not protect workers in oxygen-deficient atmospheres.
Skin Protection:Wear impervious protective clothing, including boots, gloves, lab coat, apron or coveralls, as appropriate, to prevent skin contact. Eye Protection: Use chemical safety goggles and/or full face shield where dusting or splashing of solutions is possible. Maintain eye wash fountain and quick-drench facilities in work area.
Borax is used for brazing and forge welding flux. It is applied several ways. Brazing rods are coated with it or plain. When using plain rods the end is heated and then dipped in some borax powder which sticks to the rod and begins to melt.
When forge welding it is common to sprinkle it on. Occasionally a hot piece of iron or steel is "dipped" in the can or box. Many smiths go to the trouble to forge a long handled spoon. Another method is to use a "poker" with a short bent end. The end is heated then dipped in the flux. The flux is then transferred to the part while it is still in the fire. This has the advantage of not removing the part from the fire OR sprinkling a lot of flux in the forge.
The high temperature solvent effect of borax will also dissolve refractories (such as your forge lining or fire brick), which after all, are metal oxides.
|(SODIUM TETRABORATE) Na2B4O7 |
|CAS ||1330-43-4 |
|Melting Point °C ||741 |
|Boiling Point °C ||1575 |
|Density G/Cm3 ||2.369 |
|Catalog ||Product Description ||Purity ||Particle ||Cost Per Pound || || || |
|No. || ||% ||Size ||2-Jan ||10-Mar ||25-Nov ||26-100 |
|BO-620 ||borax, high purity ||98 ||60 mesh ||inquire || || || |
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