cyclohex-3-ene-1-carbaldehyde

Flammable Liquid

ERG2024, Guide 129 (1,2,3,6-Tetrahydrobenzaldehyde): In Canada, an Emergency Response Assistance Plan (ERAP) may be required for this product. Please consult the shipping paper and/or the "ERAP" section.

ERG2024, Guide 129 (1,2,3,6-Tetrahydrobenzaldehyde): · Many liquids will float on water.

FIRE INVOLVING TANKS, RAIL TANK CARS OR HIGHWAY TANKS: Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles. Cool containers with flooding quantities of water until well after fire is out. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks in direct contact with flames. For massive fire, use unmanned master stream devices or monitor nozzles; if this is impossible, withdraw from area and let fire burn. (ERG, 2024)

LC50 (rat) = 2,000 ppm/4h

ERG2024, Guide 129 (1,2,3,6-Tetrahydrobenzaldehyde): · Runoff from fire control or dilution water may cause environmental contamination.

Hydrocarbons, Aliphatic Unsaturated

Dermatotoxin - Skin burns.

A strong tissue irritant; May cause burns to skin and eyes; [CAMEO] An irritant; May cause burns to eyes; [MSDSonline]

2498 129

SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.

1,2,3,6-TETRAHYDROBENZALDEHYDE is an aldehyde. Aldehydes are frequently involved in self-condensation or polymerization reactions. These reactions are exothermic; they are often catalyzed by acid. Aldehydes are readily oxidized to give carboxylic acids. Flammable and/or toxic gases are generated by the combination of aldehydes with azo, diazo compounds, dithiocarbamates, nitrides, and strong reducing agents. Aldehydes can react with air to give first peroxo acids, and ultimately carboxylic acids. These autoxidation reactions are activated by light, catalyzed by salts of transition metals, and are autocatalytic (catalyzed by the products of the reaction). The addition of stabilizers (antioxidants) to shipments of aldehydes retards autoxidation.

Personnel protection: Avoid breathing vapors. Keep upwind. Avoid bodily contact with the material. ... Do not handle broken packages unless wearing appropriate personal protective equipment. Wash away any material which may have contacted the body with copious amounts of water or soap and water. If contact with the material anticipated, wear appropriate chemical protective clothing.

LARGE SPILL: Dike far ahead of liquid spill for later disposal. Water spray may reduce vapor, but may not prevent ignition in closed spaces. (ERG, 2024)

Flammable. Slightly soluble in water.

The mucus membranes of the nasal and oral passages and the upper respiratory tract are affected, producing a burning sensation ... bronchial constriction, choking, and coughing. The eyes tear, and a burning sensation is noted on the skin of the face. /Aldehydes/

If material on fire or involved in fire: Do not extinguish fire unless flow can be stopped or safely confined. Use water in flooding quantities as fog. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. Solid streams of water may be ineffective. Use "alcohol" foam, dry chemical or carbon dioxide.

Evacuation: ERG2024, Guide 129 (1,2,3,6-Tetrahydrobenzaldehyde): · If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions.

Placard/Label(s)

NFPA Instability Rating: 0 - Materials that in themselves are normally stable, even under fire conditions.

Spill or Leak: ERG2024, Guide 129 (1,2,3,6-Tetrahydrobenzaldehyde): · Water spray may reduce vapor, but may not prevent ignition in closed spaces.

Study was conducted to determine if HCHO pretreatment would cause sensory irritation cross tolerance to other inhaled aldehydes. Male F-344 rats, weighing 190 to 210 g, were pretreated with 15 ppm HCHO, 6 hr/day for 9 days, and challenged on the 10th day with a saturated (acetaldehyde, propionaldehyde, and butyraldehyde), unsaturated (acrolein and crotonaldehyde), or cyclic (cyclohexanecarboxaldehyde, 3-cyclohexene-1-carboxaldehyde, and benzaldehyde) aldehyde. The sensory irritation response in these animals was quantified by measuring respiratory rate depression in a head-only inhalation chamber in naive (nonpretreated) animals, the concentration eliciting a 50% decrease in respiratory rate (RD50) was 23 ppm or less for unsaturated aliphatic aldehydes. For cyclic and saturated aliphati...

Flammable agents - 2nd degree

Personnel protection: ... Wear appropriate chemical protective gloves, boots, and goggles.

IMO 3.3; 1,2,3,6-TETRAHYDROBENZALDEHYDE

Emergency Response: ERG2024, Guide 129 (1,2,3,6-Tetrahydrobenzaldehyde): · For massive fire, use unmanned master stream devices or monitor nozzles; if this is impossible, withdraw from area and let fire burn.

The low molecular weight aldehydes, the halogenated aliphatic aldehydes, and the unsaturated aldehydes are particularly irritating. /Aldehydes/

Protective Clothing: ERG2024, Guide 129 (1,2,3,6-Tetrahydrobenzaldehyde): · Structural firefighters' protective clothing provides thermal protection but only limited chemical protection.