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Calcium chloride Dihydrate

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Calcium chloride dihydrate is a chemical compound with the molecular formula CaCl2·2H2O. It is a crystalline salt that is highly soluble in water and has a variety of industrial and medical applications. It is commonly used as a desiccant to absorb moisture, as a de-icing agent for roads and sidewalks, and as a food preservative. It is also used in the production of cement, as a laboratory reagent, and in medicine as a source of calcium for intravenous therapy.

Description

 Calcium chloride dihydrate Uses

De-icing agent:

Calcium chloride dihydrate is used as a de-icing agent to remove ice and snow from roads, sidewalks, and other surfaces.

Concrete acceleration:

Calcium chloride dihydrate is added to concrete to accelerate the setting time, which reduces the time required for the concrete to set and harden.

Food processing:

Calcium chloride dihydrate is used in the food industry as a firming agent, preservative, and sequestrant.

Oil and gas drilling:

Calcium chloride dihydrate is used in the oil and gas industry to increase the density of drilling mud and to prevent the formation of hydrates in pipelines.

Desiccant:

Calcium chloride dihydrate is used as a desiccant to absorb moisture from the air and prevent the growth of mold and mildew.

Medical applications:

Calcium chloride dihydrate is used as a source of calcium in intravenous therapy, to treat hypocalcemia, and to manage hyperkalemia.

Water treatment:

Calcium chloride dihydrate is used in water treatment as a flocculant to remove impurities from water.

Fire extinguishers:

Calcium chloride dihydrate is used as an ingredient in some dry powder fire extinguishers to suppress fires by smothering them and removing oxygen from the fire.

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Additional information
AVAILABLE PACK SIZE

25kg( Metal or Plastic Jerrycan/ Bucket, Bag, Box, Polythene bag, Carton bag)

KEY ATTRIBUTES

1. Basic Identification Attributes

  • Chemical Name: Calcium chloride dihydrate (IUPAC)
  • CAS Number: 10035-04-8
  • HS Code: 2827.20.00 (Inorganic chlorides)
  • Molecular Formula: CaCl₂·2H₂O
  • Synonyms:
    • Calcium dichloride dihydrate
    • E509 (food-grade, hydrated form)

2. Physical & Chemical Properties

  • Physical State: White or colorless crystalline solid
  • Color & Odor: White, odorless
  • Boiling Point: Decomposes before boiling (~176°C, loses water)
  • Melting Point: ~176°C (dehydration occurs)
  • Density: 1.85 g/cm³
  • Solubility:
    • Water: 97 g/100 mL (20°C)
    • Ethanol: Slightly soluble
  • pH Level: 7–9 (5% solution; neutral to slightly alkaline)
  • Hygroscopicity: Absorbs moisture (less aggressive than anhydrous form)
  • Vapor Pressure: Negligible
  • Flash Point: Non-flammable

3. Safety & Hazard Attributes

  • Hazard Class (GHS):
    • Eye Irritation (Category 2)
    • Skin Irritation (Category 2)
  • NFPA Ratings:
    • Health: 1| Flammability: 0 | Reactivity: 0
  • Exposure Limits:
    • OSHA PEL: N/A (nuisance dust)
    • ACGIH TLV: 10 mg/m³ (inhalable dust)
  • Reactivity:
    • Exothermic dissolution in water
    • Incompatible with strong oxidizers(e.g., peroxides), bromine trifluoride

4. Storage & Handling Attributes

  • Storage Conditions:
    • Airtight containers (HDPE plastic or coated steel)
    • Cool, dry place (avoid humidity to prevent caking)
  • Incompatible Materials:
    • Aluminum, zinc (corrosion risk in moist conditions)
    • Organic compounds (potential heat generation)
  • Container Type:
    • Plastic bags, lined drums, or moisture-resistant packaging
  • Shelf Life: Indefinite if kept sealed (hygroscopic but stable)
  • Special Handling:
    • Use gloves and safety goggles
    • Minimize dust generation (ventilation recommended)

5. Regulatory & Compliance Attributes

  • Regulatory Status:
    • FDA: GRAS (E509) for food use
    • EPA: Exempt from toxicity reporting (low environmental risk)
    • REACH: Registered
  • Hazard Symbols (GHS): (Irritant)
  • Transportation Restrictions:
    • UN Number: Not regulated (non-hazardous for transport)
    • DOT: No special requirements
  • Waste Disposal:
    • Dispose as non-hazardous waste (dilute for aqueous disposal)

 

6. Environmental & Health Impact

  • Ecotoxicity:
    • Low toxicity to aquatic life (LC50 > 100 mg/L for fish)
    • High concentrations may increase soil salinity
  • Persistence:
    • Dissolves readily; migrates in water but does not bioaccumulate
  • Carcinogenicity:
    • Not listed by IARC, NTP, or OSHA
  • Biodegradability: N/A (inorganic salt)

 

SAFETY PRECAUTIONS
Personal Protection
  • Respiratory Protection: Use a dust mask (NIOSH N95 or higher)when handling powder to prevent inhalation of dust particles.
  • Eye Protection: Wear safety gogglesto prevent eye irritation from dust or splashes.
  • Skin Protection: Use impermeable gloves (nitrile or neoprene)to avoid skin contact, especially with concentrated solutions.
  • General Hygiene: Avoid ingestion and prolonged skin exposure. Wash hands thoroughly after handling.
Handling & Storage
  • Store in a cool, dry, well-ventilatedarea, away from moisture and incompatible chemicals (e.g., strong oxidizers).
  • Keep containers tightly sealedto prevent absorption of moisture (hygroscopic).
  • Use non-sparking toolswhen handling large quantities.
  • Avoid contact with water(exothermic dissolution, may cause splattering).
Spill Management
  • For dry spills: Sweep up carefully (avoid dust generation) and dispose of in a sealed container.
  • For liquid spills (solution): Absorb with inert material (e.g., vermiculite, sand) and clean with water.
  • Large spills: Contain and prevent entry into drains or waterways (may be harmful to aquatic life).
Inhalation
  • Move to fresh air
  • If breathing difficulties occur, seek medical attention.
Skin Contact
  • Remove contaminated clothing.
  • Rinse affected area with plenty of water for at least 15 minutes.
  • If irritation or burns develop, seek medical attention.
Eye Contact
  • Rinse immediately with lukewarm water for at least 15 minutes, holding eyelids open.
  • Seek immediate medical attentionif irritation persists.
Ingestion
  • Do NOT induce vomiting.
  • Rinse mouth with water and drink milk or waterto dilute.
  • Seek medical attentionif large amounts are ingested.

Non-flammable, but reacts exothermically with water (can cause steam burns or splattering).

Hazardous Decomposition:

At high temperatures, decomposes into calcium oxide and chlorine gas.

Extinguishing Media:

  • Use dry chemical powder, CO₂, or sandfor surrounding fires.
  • Avoid water jets(can intensify reaction with hot CaCl₂).

Firefighter Protection:

  • Wear self-contained breathing apparatus (SCBA)and full protective gear.
  • Cool containers exposed to fire with water spray from a safe distance.