Zinc Hydroxide Extra Pure

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Zinc Hydroxide Extra Pure is a high-purity, white, odorless powder used extensively in laboratory applications involving zinc chemistry. It acts as a key reagent in qualitative and quantitative analyses and the synthesis of zinc compounds. Insoluble in water but soluble in acids, it plays an important role in precipitation and buffering reactions. The Extra Pure grade ensures minimal impurities for sensitive experimental work. Zinc Hydroxide is also studied in pharmaceutical and environmental research for its bioactivity and water treatment potential. It requires careful handling to avoid dust inhalation and moisture exposure, and is stable under standard laboratory storage conditions.

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Categories: Analytical Reagents, Inorganic and Organic Standards Tags: AnalyticalReagent, ExtraPure, HighPurity, LaboratoryChemical, ZincCompound, ZincHydroxide, Zn(OH)2

Description

Table of Contents

Zinc Hydroxide Extra Pure

PRIMARY USES

Analytical Reagent & Laboratory Applications:

Used as a reagent for qualitative and quantitative chemical analysis
Employed in synthesis of zinc-based compounds and coordination complexes
Utilized in precipitation reactions for zinc ion detection and separation
Acts as a standard reagent in laboratory preparation of zinc salts
Used in pH buffering and neutralization studies involving zinc chemistry

Pharmaceutical & Cosmetic Research:

Applied in formulation studies for topical and dermatological products
Used in research on zinc compounds’ bioavailability and therapeutic properties

SECONDARY USES

Environmental & Water Treatment Research:

Used to study zinc hydroxide’s role in water purification and heavy metal removal

PRODUCT KEY FEATURES

Basic Identification Attributes
Chemical Name: Zinc Hydroxide
CAS Number: 20427-58-1
HS Code: 2815.20.00
Molecular Formula: Zn(OH)₂
Synonyms:

Zinc dihydroxide
Basic zinc hydroxide
Zinc hydrate

Physical & Chemical Properties
Physical State: Solid powder or fine crystalline powder
Color & Odor: White, odorless
Melting Point: Decomposes at approximately 125 °C releasing water
Boiling Point: Not applicable (decomposes)
Density/Specific Gravity: ~3.4 g/cm³
Solubility:

Insoluble in water
Soluble in acids forming zinc salts
pH Level: Slightly alkaline in suspension (pH ~7.5 - 8.5)
Vapor Pressure & Volatility: Not volatile
Flash Point: Not flammable
Autoignition Temperature: Not applicable
Viscosity: Not applicable

Safety & Hazard Attributes
Hazard Class (GHS Classification):

Eye irritation (Category 2A)
May cause mild skin irritation
NFPA Ratings:
Health: 1
Flammability: 0
Reactivity: 0
Exposure Limits:
No specific OSHA PEL or ACGIH TLV established for zinc hydroxide powder
Reactivity:
Stable under normal laboratory conditions
Reacts with acids releasing heat and zinc salts

Storage & Handling Attributes
Storage Conditions:

Store in a dry, cool, well-ventilated place
Keep container tightly closed to avoid moisture absorption
Incompatible Materials:
Strong acids (reacts releasing heat)
Strong oxidizing agents
Container Type:
Plastic or glass containers with tight seals
Shelf Life & Expiration Date:
Stable for years when stored properly
Special Handling Requirements:
Use gloves and eye protection
Avoid inhaling dust and prolonged skin contact

Regulatory & Compliance Attributes
Regulatory Status:

Listed in chemical inventories such as REACH and TSCA
Approved for laboratory use; not classified as hazardous for transport
Transportation Restrictions:
No special transportation requirements
Waste Disposal Method:
Dispose according to local regulations for inorganic chemical waste

Environmental & Health Impact
Ecotoxicity:

Low toxicity to aquatic organisms at typical environmental concentrations
Persistence in Environment:
Zinc hydroxide slowly dissolves to release zinc ions; low persistence as solid
Carcinogenicity/Mutagenicity:
Not classified as carcinogenic or mutagenic
Biodegradability:
Inorganic compound; not biodegradable but low environmental impact

SAFETY HANDLING PRECAUTIONS

SAFETY PRECAUTIONS
Personal Protective Equipment (PPE):

Wear nitrile or other chemical-resistant gloves
Use safety goggles or face shield
Wear lab coat or protective clothing
Use dust mask if powder dust is generated

Handling:

Work in well-ventilated area
Avoid inhaling dust
Avoid skin and eye contact
Wash hands thoroughly after handling

Storage:

Keep containers tightly sealed
Store in dry, cool, well-ventilated area
Protect from moisture and incompatible materials

FIRST AID MEASURES
Inhalation:

Move to fresh air immediately
Seek medical attention if irritation persists

Skin Contact:

Wash affected area with soap and water
Remove contaminated clothing
Seek medical advice if irritation develops

Eye Contact:

Rinse thoroughly with water for at least 15 minutes
Keep eyelids open during rinsing
Obtain medical attention promptly

Ingestion:

Rinse mouth with water
Do not induce vomiting unless advised
Seek medical attention if symptoms occur

FIRE FIGHTING MEASURES
Flammability:

Non-flammable solid
Extinguishing Media:
Use water spray, foam, dry chemical or CO₂
Hazardous Combustion Products:
May release zinc oxide fumes if heated to decomposition
Firefighter Protection:
Wear full protective gear and self-contained breathing apparatus