Material Safety Data Sheet

1. Product and Company Identification

Product Name: Bentonite, Inc.
Supplier:Texas Sodium Bentonite, Inc.
18301 Hwy 16 South
Comanche, Texas 76442
Phone # 325-885-2339
Fax # 325-885-2138

2. Hazards Identification

Hazardous Ingredients: Silica SiO2 Quartz
%: N/A
CAS #: N/A

3. Physical Data

Appearance and Odor: Light tan to gray solid, no odor
Specific Gravity: 2.5
Boiling Point: N/A
Vapor Density: (Air=1) N/A
Vapor Pressure: (mm/hg) N/A
Evaporation Rate: N/A
Solubility in Water: N/A

4. Fire and Explosion Data

Flash Point: Not flammable
Flammable Limits in Air: Not flammable
Extinguishing Agents: None required
Unusual Fire and Explosion Hazards: Bentonite is not explosive, will not support combustion

5. Reactivity Data

Stability: Stable
Incompatibility with other substances: N/A

6. Toxicity and First Aid

Unless specified otherwise, limits are expressed as eight-hour time-weighted averages (TWA)
Respirable Crystalline Silica (quartz): MSHA-Proposed and OSHA-Proposed
PEL = 0.1 mg/m3
Total Dust: MSHA = 30 mg/m3 divided by (%SiO2 + 3)

MSHA, ACGEH, and OSHA have determined that adverse effects are not likely to occur in the workplace provided exposure levels do not exceed the appropriate TLVs/PELs. However, because of the wide variation in individual susceptibility, lower exposure limits may be appropriate for some individuals including persons with pre-existing medical conditions such as those listed below.

Medical Conditions Aggravated by Exposure
Inhaling respirable dust and/or crystalline silica may aggravate existing respiratory system disease(s) and /or dysfunctions. Exposure to dust may aggravate existing skin and/or eye conditions.

Primary Routes(s) of Exposure
Inhalation
Skin
Ingestion

Acute Toxicity
Eye Contact: Direct contact with dust may cause irritation by mechanical abrasion.
Skin Contact: Direct contact may cause irritation by mechanical abrasion
Skin Absorption: Not expected to be a significant exposure route.
Ingestion: Expected to be practically non-toxic.
Inhalation: Dusts may irritate the nose, throat, and respiratory tract by mechanical abrasion.

First Aid
Eyes: Immediately flush eye(s) with plenty of clean water for at least 15 minutes, while holding the eyelids open.
Skin: Wash with soap and water
Ingestion: N/A
Inhalation: Remove to fresh air. Dust in throat and nasal passages should clear spontaneously. Contact physician if irritation persists.

7. Personal Protection and Controls

Respiratory Protection: Use a NIOSH approved respirator
Skin Protection: Wash dust-exposed skin with soap and water before eating and drinking. Wash work clothes after each use.
Eye protection: Safety glasses with side shields should be worn as minimum protection. Dust goggles should be worn when excessively dusty conditions are present.

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