CDA 12-A (n-Heptane) – Safety Data Sheet (SDS)

Link to Safety Data Sheet (PDF)

Quick Facts

• Product Name: CDA 12-A (n-heptane)

• Type/Synonyms: Completely Denatured Alcohol (CDA); Denatured Ethanol

• Composition: Ethanol 95–99%; n-heptane 1–5%

• Recommended Uses: Fuel additive, solvent, food additive, cosmetics, beverages

• Supplier/Emergency: Carbon Chemistry Ltd.; CHEMTREC CCN832309 (+1-800-424-9300)

Hazards & Safety

• GHS Classification: Flammable Liquid Cat. 2; Skin Irrit. Cat. 2; Eye Irrit. Cat. 2; Aquatic Acute/Chronic Cat. 2.

• Signal Word/Pictograms: Danger.

• Hazard Statements: H225 Highly flammable liquid and vapor; H315 Causes skin irritation; H319 Causes serious eye irritation; H401/H411 Toxic to aquatic life (acute and long-lasting).

• Prevention: Keep away from heat/sparks/open flames; keep container tightly closed; ground/bond; use explosion-proof/non-sparking equipment; avoid release to the environment; wear protective gloves/eye/face protection.

First Aid Measures

• Eyes: Rinse cautiously with water for ≥15 minutes; remove contacts if easy; get medical attention if irritation persists.

• Skin: Wash thoroughly; remove and launder contaminated clothing.

• Inhalation: Move to fresh air; support breathing if needed.

• Ingestion: Do not induce vomiting; call physician/poison control; never give anything by mouth to an unconscious person.

• Notes: Treat symptoms; reduce over-exposure.

Fire & Explosion Data

• Extinguishing Media: Dry powder/sand, alcohol-resistant foam, dry chemical, CO₂; do not use water jet.

• Special Hazards: Not sensitive to mechanical impact/static by SDS; cool containers with water spray; prevent runoff entry to drains/waterways.

Handling & Storage

• Use polyethylene/plastic, lined steel, or stainless equipment; protect containers from damage.

• Ground and bond during transfer; use non-sparking tools and explosion-proof equipment.

• Store tightly closed in a cool, dry, isolated, well-ventilated area away from ignition sources and incompatibles; keep drum bungs up.

Exposure & PPE

• Exposure Limits: Ethanol—ACGIH TWA 1000 ppm; OSHA TWA 1000 ppm (1900 mg/m³). n-Heptane—ACGIH TWA 400 ppm; OSHA TWA 500 ppm (2000 mg/m³).

• Controls: Adequate ventilation/local exhaust; provide eyewash/safety shower.

• PPE: Safety glasses; protective gloves and clothing as needed; approved respiratory protection if airborne levels may exceed limits.

Physical & Chemical Properties

• State/Appearance/Odor: Colorless liquid; agreeable odor

• pH: ~7.3

• Boiling Point: ~172 °F (77.7 °C)

• Flash Point: 55.4 °F (13 °C)

• Solubility: Miscible in water

• Viscosity: ~1.2 mPa·s (20 °C)

• Specific Gravity: ~0.785 g/mL (20 °C)

Stability & Reactivity

• Stability: Stable under recommended conditions.

• Avoid: Heat, flames, sparks.

• Incompatibles: Strong oxidizers, alkali metals, peroxides.

• Decomposition: Carbon oxides under fire conditions.

Toxicology & Ecology

• Toxicity Data (components): Ethanol—oral LD₅₀ (rat) 10,470 mg/kg; inhalation LC₅₀ (rat, 4 h) 30,000 mg/L. n-Heptane—inhalation LC₅₀ (rat, 4 h) 103,000 mg/m³.

• Effects: Irritating to eyes/skin; not a sensitizer per SDS.

• Aquatic: n-Heptane toxic to aquatic organisms; avoid environmental release.

Transport & Disposal

• US DOT/IMDG/IATA: UN1987, Alcohols, n.o.s. (contains ethanol and n-heptane), Class 3, PG II; ERG 127; ingredients classified by DOT as a marine pollutant.

• Disposal: Incinerate in approved facility; avoid dispersal to soil/waterways; comply with all federal/state/local regulations.

Regulatory Status

• TSCA: All components listed.

• SARA 311/312: Acute Health—Yes; Chronic—No; Fire—Yes; Reactivity—No.

• SARA 302/304/313: Not subject to reporting.

• Prop 65/State Regs: None listed in SDS.

• HMIS/NFPA: HMIS—Health 1, Flammability 3, Physical Hazard 0; NFPA—Health 1, Flammability 3, Instability 0.