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Name: 1,3-Dichloro-2-Propanol
Other names: 1,3-DCP, Glycerol Dichlorohydrin
Chemical formula: C3H6Cl2O
Appearance: Colorless to pale yellow liquid with a pungent odor
Common uses: Intermediate in manufacturing, especially for epichlorohydrin and surfactants
CAS number: 96-23-1
Acute dangers: Strongly irritating to eyes, skin, and respiratory tract, possible mutagenic effects
Chronic risks: Has shown carcinogenic properties in animal studies, may cause kidney and liver toxicity
Routes of exposure: Inhalation, skin contact, ingestion
Physical dangers: Flammable; vapors heavier than air can spread along floors
Local impacts: Spills quickly affect confined spaces, leaving little time for response
Main component: 1,3-Dichloro-2-propanol (~98‒100%)
Impurities: Trace chlorinated byproducts possible from manufacturing
Characteristic structure: Two chlorine atoms attached to a propane backbone with one hydroxyl group
Inhalation: Move the affected person outside to fresh air, seek immediate medical help if symptoms persist, support breathing if needed
Skin contact: Remove contaminated clothing, wash skin thoroughly under running water for several minutes
Eye contact: Rinse eyes with low-pressure clean water for at least fifteen minutes, keeping eyelids wide, call for medical advice
Ingestion: Rinse mouth, do not induce vomiting, and call poison control or medical personnel without delay
Key facts: Prompt action makes a difference with aggressive chemicals like this one
Extinguishing media: Use water spray, foam, dry powder, or carbon dioxide for fires involving 1,3-Dichloro-2-Propanol
Fire hazards: Vapors can form explosive mixtures with air; decomposition releases phosgene, hydrogen chloride, carbon monoxide
Protective actions: Wear self-contained breathing apparatus and full protective gear; toxic gases from combustion can endanger even seasoned responders
Other notes: Cool tanks and storages exposed to fire with water as long as it can be done safely
Personal precautions: Evacuate unnecessary personnel, ventilate area, avoid direct contact, put on proper PPE
Spill cleanup: Use inert absorbent (sand or earth) for small spills, collect in sealed containers for disposal
Environmental considerations: Prevent chemical runoff from entering water systems or soil, which can spread contamination far beyond the workplace
Other insights: Trained responders with awareness of the chemical’s hazards make all the difference here
Handling: Always keep in tightly closed containers; avoid inhaling vapors or contact with skin; work within fume hoods if available
Storage: Store in cool, dry, well-ventilated spaces away from incompatible substances such as strong oxidizers, metals, and acids
General practices: Label containers clearly, rotate stock to prevent aging, check for leaks
Personal routines: Wash hands thoroughly after handling, avoid eating or drinking nearby, keep emergency wash stations ready
Engineering controls: Local exhaust ventilation is critical; enclosures or extraction fans reduce airborne risk
Personal protective equipment: Chemical-resistant gloves, safety goggles or faceshields, lab coats or chemical aprons, and suitable respirators if vapors are present
Exposure limits: Some national agencies set occupational exposure limits from 0.1 to 1 ppm—staying well below these numbers takes priority
Practical advice: Regular maintenance of protective gear increases its reliability, and attention to proper fit prevents small leaks from becoming bigger problems
Molecular weight: 128.99 g/mol
Boiling point: 174 °C
Melting point: −57 °C
Vapor pressure: Moderate, 1.3 mm Hg at 20 °C
Solubility: Soluble in water and most organic solvents
Odor: Sharp, pungent, somewhat sweet
Other notable traits: Liquids with this volatility and odor profile tend to linger in the air, which can increase personal exposure unnoticed
Stability: Stable under recommended conditions if isolated from strong oxidizing agents
Incompatible materials: Avoid contact with aluminum, alkali metals, and concentrated acids
Hazardous decomposition: In a fire or heated environment, releases toxic fumes: hydrogen chloride, phosgene, carbon oxides
Reactivity warnings: Moisture, heat, or contact with reactive metals increases the risk of unwanted reactions
Acute effects: Irritation to eyes, nose, throat; potential headache, nausea, or dizziness at moderate inhalation levels
Chronic effects: Increased risk of cancer based on animal research, serious damage to liver and kidneys possible with repeated exposure
Mutagenicity: Studies in bacteria and some animal tissues suggest genetic mutation risks
Routes of harm: Contact with skin may lead to dermatitis or chemical burns, inhalation can affect the central nervous system
Essential truth: Regular health surveillance and exposure review make sense for people working with this chemical over the long term
Environmental hazards: Harmful to aquatic life—small spills escape standard wastewater treatment, building up in rivers or lakes
Persistence: Not readily biodegradable
Bioaccumulation: Data limited, but similar chlorinated compounds tend to persist in food webs
Practical response: Treat wastewater and dispose of residues carefully, monitor local water sources if use is ongoing
Waste handling: Collect and label waste for specialized incineration or chemical disposal facilities, never pour down the drain
Packaging: Rinse empty containers with care, triple rinse before disposal, puncture or crush to prevent reuse
Other insights: Only certified contractors should transport or process large-scale waste, as improper disposal spreads the compound beyond the workplace
UN number: UN 1992
Shipping class: Toxic liquids, organic, n.o.s. (not otherwise specified)
Packing group: II (medium danger)
Transport precautions: Use sealed drums with clear labeling; drivers trained in chemical transport laws have fewer accidents than general haulers
Incident readiness: Emergency response kits and spill control plans belong on every vehicle carrying dangerous goods
Global restrictions: 1,3-Dichloro-2-Propanol appears on lists of hazardous substances in Europe, North America, and Asia; some countries limit handling or require workplace monitoring
Cancer status: Certain regulatory bodies flag this as a probable human carcinogen, based on animal studies
Other regulations: Storage, labeling, and transport face close scrutiny from health and environment agencies
Community engagement: Workers and local communities have legal rights to information on use and disposal for chemicals like this, and whistleblower laws now protect those who report unsafe practices
