7.2 Cleaning Products, Personal Care Products, and Household Chemicals
Key Takeaways
- Most household cleaning exposures involve dilute anionic or nonionic surfactants that cause only oral irritation and vomiting, so the triage task is separating these from the concentrated caustics, cationic detergents, and hydrocarbon-containing products that cause real injury.
- Household bleach at 3% to 8% sodium hypochlorite is an irritant, while industrial hypochlorite above about 10% and automatic dishwasher products are alkaline caustics capable of mucosal burns.
- Mixing bleach with an acid generates chlorine gas and mixing bleach with ammonia generates chloramine gas, both of which cause intermediate-solubility airway injury.
- Concentrated hydrogen peroxide (about 35% "food grade") causes caustic injury and life-threatening oxygen gas embolism, unlike the 3% household product which causes only foaming and irritation.
- Nail products containing acetonitrile are metabolized to cyanide with a delay of several hours, and naphthalene mothballs cause hemolysis in glucose-6-phosphate dehydrogenase deficiency, both of which are missed if the product is dismissed as a cosmetic.
Last updated: September 2026
Household products dominate poison center call volume, and most calls end in reassurance. The specialist's value lies in the minority of products that injure: concentrated caustics, cationic detergents, low-viscosity hydrocarbons, and a handful of chemicals with delayed systemic toxicity.
Surfactants by Ionic Class
| Class | Examples | Toxicity |
|---|---|---|
| Anionic (alkyl sulfates) | Dish soap, laundry detergent, shampoo | Mucosal irritation, vomiting, diarrhea; large volumes cause dehydration. Airway concern only from foaming and aspiration |
| Nonionic (ethoxylated alcohols) | Hand dishwashing liquid, many all-purpose cleaners | Mild irritation; among the least toxic surfactants |
| Cationic (quaternary ammonium compounds: benzalkonium chloride, cetrimide) | Disinfectant wipes and sprays, fabric softeners, algaecides, some sanitizers | Concentration dependent: dilute products irritate, but concentrations above roughly 7.5% to 10% are corrosive and can cause mucosal burns, and massive ingestions cause systemic effects with hypotension, seizures, and neuromuscular blockade |
| Amphoteric | Specialty cleaners, some shampoos | Mild |
Foaming hazard: any surfactant can generate foam that is aspirated. That is why emesis is never induced and why large fluid volumes are avoided.
Alkaline and Acidic Household Caustics
| Product | Typical Composition | Injury Potential |
|---|---|---|
| Household liquid bleach | 3% to 8% sodium hypochlorite, pH about 11 | Irritant: oral burning, vomiting; serious esophageal injury is rare |
| Industrial or "ultra" hypochlorite | 10% to 20%+ | True caustic: mucosal burns possible |
| Automatic dishwasher detergent and rinse agents | Alkaline salts (sodium metasilicate, carbonate), sometimes with hydroxide | Alkaline burns, especially granular products that adhere to mucosa |
| Drain and oven cleaners | Sodium or potassium hydroxide, often 10% to 50% | Severe liquefaction necrosis; see the caustics section |
| Toilet bowl and tile cleaners | Hydrochloric or sulfuric acid, or sodium bisulfate | Coagulation necrosis, gastric injury |
| Rust removers | Oxalic, phosphoric, or hydrofluoric acid | Hydrofluoric acid products cause pain out of proportion to appearance plus hypocalcemia |
| Ammonia cleaners | 5% to 10% ammonium hydroxide | Irritant to airway and eyes; concentrated industrial forms are caustic |
Gas Generation From Mixing
| Mixture | Gas Produced | Clinical Effect |
|---|---|---|
| Bleach + acid (toilet cleaner, vinegar) | Chlorine | Intermediate solubility: eye and airway irritation, cough, bronchospasm, delayed pulmonary edema |
| Bleach + ammonia | Chloramine | Similar to chlorine, often milder but with the same delayed potential |
| Acid + sulfide-containing product | Hydrogen sulfide | Rapid knockdown; a rescuer hazard |
Management of these inhalations is fresh air, humidified oxygen, bronchodilators for wheezing, and observation for delayed pulmonary edema in significant exposures.
Specific Household Hazards Worth Memorizing
Concentrated Hydrogen Peroxide
- 3% household peroxide: foaming, oral irritation, vomiting; essentially benign in small ingestions.
- 35% "food grade" peroxide: caustic mucosal injury plus massive oxygen gas liberation. Each milliliter of 35% peroxide releases more than 100 mL of oxygen, which can produce portal venous gas, gastric distension, and arterial gas embolism with stroke or cardiac arrest. Any concentrated peroxide ingestion requires emergency evaluation, imaging, and consideration of hyperbaric oxygen for embolism.
Nail Products
- Acetonitrile (in some artificial nail removers) is metabolized by CYP450 to cyanide, with symptom onset delayed 3 to 12 hours. A small ingestion by a toddler has been fatal. Treatment is cyanide antidote therapy with hydroxocobalamin and prolonged observation.
- Acetone removers cause central nervous system depression, ketosis without acidosis, and a fruity odor.
- Methacrylate products cause irritation.
Mothballs
- Naphthalene causes hemolysis, particularly in patients with glucose-6-phosphate dehydrogenase deficiency, and methemoglobinemia. Presentation is delayed 24 to 72 hours with pallor, jaundice, and dark urine.
- Paradichlorobenzene is far less toxic and causes mainly gastrointestinal upset.
- The two can be distinguished at home with a float test: in a saturated salt solution (about 3 heaping tablespoons of salt in 4 ounces of warm water), naphthalene floats and paradichlorobenzene sinks, while both sink in plain tap water. Camphor, by contrast, floats even in tap water.
Personal Care Products
| Product | Concern |
|---|---|
| Mouthwash | Ethanol up to about 27%; hypoglycemia and central nervous system depression in young children |
| Hand sanitizer | 60% to 70% ethanol, sometimes methanol-contaminated in recalled products; pediatric ethanol intoxication and hypoglycemia |
| Hair relaxers | Alkaline (sodium or guanidine hydroxide): oral and ocular burns |
| Permanent wave neutralizers | Bromates: vomiting, then hemolysis, irreversible sensorineural hearing loss, and kidney failure; sodium thiosulfate has been used |
| Perfumes and colognes | Ethanol content is the issue in children |
| Talc powders | Aspiration pneumonitis in infants |
| Essential oils | Small volumes cause seizures (camphor), apnea (eucalyptus), or hepatotoxicity (clove, pennyroyal) |
| Diaper creams, calamine, lip balm | Nontoxic in exploratory amounts |
| Silica gel packets, glow stick fluid, chalk, crayons, pencil "lead" | Nontoxic; classic reassurance calls |
Other Household Products
| Product | Concern |
|---|---|
| Fire extinguishers | Dry chemical (irritant), carbon dioxide (asphyxiant in closed space), halon (myocardial sensitization) |
| Glues and adhesives | Cyanoacrylate bonds skin and eyelids (treat with mineral oil and patience, not solvents); model glue solvents cause inhalant abuse |
| Fertilizers and plant food | Nitrate content can cause methemoglobinemia in infants; large ingestions irritate |
| Swimming pool chemicals | Calcium hypochlorite and trichloroisocyanurate are caustic and release chlorine when wet |
| Automotive products | Antifreeze (ethylene glycol), windshield fluid (methanol), gasoline (hydrocarbon aspiration) |
| Glycol ethers (ethylene glycol monobutyl ether in glass and all-purpose cleaners) | Small household ingestions cause irritation only; massive ingestions have caused CNS depression, metabolic acidosis, and kidney injury and have been treated with fomepizole and hemodialysis |
| Epoxy adhesives | Two-part resins and amine hardeners irritate skin and eyes and cause allergic contact dermatitis; a taste of cured glue is nontoxic |
| Sunscreens | Low toxicity; spray products add ethanol and an aspiration risk |
| Holiday hazards | Bubble lights (small amounts of methylene chloride), snow sprays and angel hair (irritants), tree preservatives (usually sugar and dilute fertilizer), older lead tinsel, button-battery toys, and alcoholic drinks left within reach; holiday plants are covered with the gastrointestinal irritant plants |
Triage Framework
- Identify the concentration, not just the product name. Bleach at 6% and bleach at 15% are different exposures.
- Ask about symptoms that predict injury: drooling, refusing to swallow, persistent vomiting, stridor, or chest pain warrant referral regardless of the product.
- Never induce emesis, never neutralize, and avoid large fluid volumes. Small sips of water are acceptable.
- Irrigate eyes and skin immediately for 15 to 20 minutes before further questioning.
- Watch for the delayed agents: acetonitrile (cyanide), naphthalene (hemolysis), bromates (hearing loss and kidney failure), concentrated peroxide (gas embolism), and low-solubility gases from mixing (pulmonary edema).
Test Your Knowledge
A caller reports that her 2-year-old drank an unknown amount of artificial nail remover containing acetonitrile about 1 hour ago. The child is currently asymptomatic. What is the correct advice?
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D
Test Your Knowledge
An adult swallowed about 15 mL of 35% hydrogen peroxide purchased as a health supplement and now has retching, abdominal distension, and transient hemiparesis. What mechanism explains the neurologic finding?
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B
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D
Test Your Knowledge
A homeowner mixed bleach with an ammonia-based glass cleaner in a small bathroom and now has cough, burning eyes, and wheezing. Which statement is correct?
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B
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D