Glycerol Extra Pure

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SHORT DESCRIPTION

Glycerol Extra Pure is a clear, viscous, and odorless liquid widely valued for its hygroscopic and solvent properties. With a purity suitable for laboratory, pharmaceutical, and analytical applications, it serves as a versatile reagent and humectant. In laboratories, Glycerol is commonly used in sample preservation, preparation of enzyme storage solutions, and as a stabilizing agent in electrophoresis gels. Its non-toxic and biodegradable nature also makes it ideal for educational experiments and sensitive chemical processes. Its high purity ensures consistent performance in both qualitative and quantitative analysis.

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Category: LABORATORY CHEMICALS Tags: cosmetichumectant, Cryopreservation, enzymebuffer, foodgradeadditive, glycerin, LabReagent, pharmaceuticalsolvent, proteinstabilizer, slidepreparation

Description

USES

Table of Contents

Primary Laboratory Uses:

Cryoprotectant in biological storage:
Widely used to preserve cells, enzymes, and bacteria during freezing by preventing ice crystal formation.
Molecular biology reagent:
Commonly used in enzyme storage buffers, sample loading buffers for electrophoresis, and DNA/RNA preservation.

Secondary Laboratory Uses:

Viscosity modifier in chemical formulations:
Acts as a thickener or stabilizer in the preparation of lab-grade lotions, gels, and emulsions.
Calibration and reference standard:
Employed in refractive index calibration and density measurement experiments.
Solvent in pharmaceutical and food simulations:
Used in dissolution testing, and solubility experiments due to its hygroscopic and non-toxic nature.

KEY PRODUCT FEATURES

KEY ATTRIBUTES

1. Basic Identification Attributes

Chemical Name: Glycerol
Other Names: Glycerin, 1,2,3-Propanetriol
Chemical Formula: C₃H₈O₃
CAS Number: 56-81-5
Molecular Weight: 92.09 g/mol
Grade: Extra Pure (Laboratory Reagent Grade)
Appearance: Clear, colorless, viscous liquid
Odor: Odorless or faintly sweet

2. Physical & Chemical Properties

Boiling Point: ~290 °C (decomposes)
Melting Point: ~18 °C
Density: ~1.26 g/cm³ at 20 °C
Viscosity: High; ~945 cP at 20 °C
Solubility: Miscible with water and alcohol; slightly soluble in ether
Refractive Index: ~1.473

3. Safety & Hazard Attributes

Hazard Classification (GHS):
✅ Non-hazardous under typical laboratory use
Hazard Statements:
- Not classified as hazardous, but may cause mild eye/skin irritation with prolonged contact
PPE Requirements:
- Lab coat
- Gloves (nitrile recommended)
- Safety goggles
First Aid Measures:
- Inhalation: Not expected to pose a hazard; move to fresh air if discomfort occurs
- Skin Contact: Wash with soap and water
- Eye Contact: Rinse with water for several minutes
- Ingestion: Non-toxic in small quantities, but seek medical advice for large ingestion

4. Storage & Handling Attributes

Storage Conditions:
- Store in a tightly sealed container
- Keep in a cool, dry, well-ventilated place
- Protect from excessive heat and light
Handling Notes:
- Avoid contamination
- Use clean dispensing tools to prevent microbial growth
- Clean up spills immediately (slippery on floors)

5. Regulatory & Compliance Attributes

Food/Pharma Relevance:
- GRAS status (Generally Recognized As Safe) for food/pharma (non-lab grade)
- Found in USP, BP, and FCC for specific purities
Labeling Compliance:
- GHS-compliant labeling preferred for lab supply
- No significant environmental hazard

6. Laboratory Applications

Primary Uses:
- Used as a solvent and humectant in laboratory preparations
- Medium for enzyme reactions or sample preservation
- Component in buffer solutions and biological media
Secondary Uses:
- Cryoprotectant in microbiology and cell storage
- Viscosity modifier in reagents and formulations
- Calibration fluid in refractometry

SAFETY HANDLING PRECAUTIONS

SAFETY PRECAUTIONS

Personal Protective Equipment (PPE):

Wear lab coat, nitrile gloves, and safety goggles.
Use in a well-ventilated area or fume hood if heated.

Handling:

Avoid contact with eyes and prolonged skin exposure.
Prevent spills and clean up immediately to avoid slipping hazards.
Wash hands thoroughly after use.

Storage:

Store in a tightly closed container.
Keep in a cool, dry, well-ventilated area away from direct sunlight and heat.
Avoid storage near strong oxidizers.

FIRST AID MEASURES

Inhalation:

Move person to fresh air.
Seek medical attention if symptoms such as coughing or dizziness occur.

Skin Contact:

Wash skin with soap and water.
Remove contaminated clothing.
Seek medical advice if irritation develops.

Eye Contact:

Rinse immediately with plenty of water for at least 15 minutes.
Remove contact lenses if present and easy to do.
Get medical attention if irritation persists.

Ingestion:

Rinse mouth with water.
Do not induce vomiting.
Seek medical attention if large quantities are swallowed or if symptoms occur.

FIRE FIGHTING MEASURES

Flammability:

Slightly combustible; may ignite at high temperatures.

Extinguishing Media:

Use dry chemical, CO₂, alcohol-resistant foam, or water spray.

Hazardous Combustion Products:

May release acrolein and carbon oxides upon thermal decomposition.

Firefighter Protection:

Use self-contained breathing apparatus (SCBA) and full protective clothing.
Avoid inhaling smoke or vapors during fire suppression.