Pyrogel 2250, 3250, 6250, 9250

Appearance/Odor

Black fabric material with no characteristic odor. Under certain conditions, product may have faint ammonia-like odor. Emergency Inhalation of excessive amounts of dust from the product may cause mechanical irritation to the Overview: respiratory tract. Dermal contact may cause mechanical irritation.

Potential health effects

Inhalation: Inhalation of airborne dusts may cause mechanical irritation of the upper respiratory tract. Eye Contact: Exposure to dust from this product can produce a drying sensation and mechanical irritation of the eyes. Skin Contact: Skin contact with dust from this product can produce a drying sensation and mechanical irritation of the skin and mucous membranes. Ingestion: This material is not intended to be ingested (eaten). If ingested in large quantity, the material may produce mechanical irritation and blockage

Acute Health Hazards

Dust from this product is a physical irritant, and may cause temporary irritation or scratchiness of the throat and / or itching and redness of the eyes and skin.

Health hazards

Some studies of long term amorphous silica dust exposures indicate a potential for decreased lung function. In surveyed studies, this effect is characterized as compounded by smoking. Additionally, surveyed studies characterize the decreased lung function effect as reversible on discontinuation of exposure. This product contains a proprietary opacifier whose elemental components include copper and manganese. Because of the structure of the copper and manganese and the respective weight percentage in this proprietary component, exposure to these elements is expected to be below levels which would cause chronic health effects. The final product contains less than 1% of each of these elements. Chronic overexposure to manganese and its compounds may have effects on the lungs and central nervous system.

Medical Conditions Generally Aggravated by Exposure

Excessive inhalation of dust may aggravate pre-existing chronic lung conditions including, but not limited to, bronchitis, emphysema, and asthma. Dermal contact may aggravate existing Exposure: dermatitis. CARCINOGENICITY Component ACGIH NTP IARC Amorphous Silica NA Not Listed 3 Oxidized polyacrylonitrile fiber NA Not Listed None Proprietary opacifier A4 Not Listed None SECTION 2 NOTES: This product is composed of synthetic amorphous silica dioxide, often referred to as silica gel or amorphous precipitated silica. Amorphous silica should not to be confused with crystalline silica. Epidemiological studies indicate low potential for adverse health effects from exposure to amorphous silica. The ACGIH A4 designation is based on the base ingredients in the proprietary opacifier.