SDS

5
Engineering Controls: Provide local exhaust ventilation where dust may be generated. Ensure compliance with
applicable exposure limits.
Personal Protective Equipment:
Eyes Protection: Wear safety glasses with side-shields. If eye contact is likely, wear chemical resistant safety
goggles and/or face shield when appropriate.
Skin and Body Protection: As a good hygiene practice, wear protective clothing to minimize skin contact such as
standard industrial work clothes, coveralls, safety footwear. When potential for contact with dry material exists,
wear disposable coveralls suitable for dust exposure, such as Tyvek. When potential for contact with wet
material exists, wear Tychem or similar chemical protective suit. Contaminated clothing should be removed and
laundered before reuse.
Hands, Arms, and Body: As a good hygiene practice, wear appropriate chemical resistant gloves. Consult a
glove supplier for assistance in selecting an appropriate chemical resistant glove.
Respiratory Protection: A NIOSH approved respirator with N95 (dust, fume, mist) cartridges may be
permissible under certain circumstances where airborne dust concentrations are expected to exceed exposure
limits, or when symptoms have been observed that are indicative of overexposure. The added protection of a full
face-piece respirator is required when visible dusty conditions are encountered and eye irritation may occur. A
respiratory protective program that meets 29 CFR 1910.134 must be followed whenever workplace conditions
warrant use of a respirator.
Hygiene Measures: Handle in accordance with good industrial hygiene and safety practices. Good hygiene
practices include but are not limited to: wearing suitable gloves and/or eye protection, washing hands and
affected skin immediately after handling before breaks, and at the end of the workday, regularly cleaning work
area and clothing, etc. Ensure that eyewash stations and safety showers are close to the workstation location.
9. Physical and Chemical Properties
Physical State: Solid
Appearance and Color: Crystalline, off-white spherical beads
Odor: Slight sulfurous odor
Odor Threshold: Not applicable
Molecular Weight: 120
Molecular Formula: NaHSO
4
Decomposition Temperature: Not applicable
Auto ignition Temperature: Not applicable
Boiling Point: Not applicable
Freezing Point: Not applicable
Melting Point: 177
o
C (350.6
o
F)
Vapor Pressure: Not applicable
Vapor Density (air=1): Not applicable
Relative Density/Specific Gravity: 1.28
Bulk Density: 1.28 g/cm
3
Water Solubility: Partially soluble in the following materials: cold water and hot water
Evaporation Rate: Not applicable
pH: <1 (5% w/w solution)
Volatility: Not applicable