Oxalic Acid Extra Pure

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SHORT DESCRIPTION

Oxalic Acid Extra Pure is a high-purity, crystalline organic compound known for its strong reducing and chelating properties. Appearing as a white, odorless solid, it is highly soluble in water and widely utilized in both laboratory and industrial settings.

This Extra Pure grade ensures reliable performance in analytical chemistry, metal cleaning, rust removal, and rare earth element processing. In the laboratory, it is commonly used to precipitate calcium ions and to prepare standard solutions for titration. In industries, Oxalic Acid is valued for its effectiveness in bleaching wood, cleaning marble, and removing iron stains from surfaces and textiles. Due to its toxicity and corrosiveness, it must be handled with appropriate personal protective equipment and stored securely in a cool, dry, well-ventilated area.

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Category: LABORATORY CHEMICALS Tags: AnalyticalReagent, CleaningAgent, ComplexometricTitration, ExtraPure, labchemical, OrganicAcid, Oxalate, OxalicAcid, ReducingAgent

Description

USES

PRIMARY USES:

Rust and stain remover in metal cleaning.
Bleaching agent in wood and textile industries.

SECONDARY USES:

Analytical reagent in laboratories.
Precursor for oxalates and chemical polishing of metals.

KEY PRODUCT FEATURES

KEY ATTRIBUTES

1. Basic Identification Attributes

Chemical Name: Oxalic Acid
CAS Number: 144-62-7
HS Code: 2917.11.00
Molecular Formula: C₂H₂O₄ (Anhydrous)
Synonyms:
- Ethanedioic acid
- Dicarboxylic acid
- Oxalate (conjugate base)

2. Physical & Chemical Properties

Physical State: Solid (crystalline powder)
Color & Odor: White; odorless
Boiling Point: Decomposes before boiling
Melting Point: ~189–191 °C (decomposes)
Density: 1.9 g/cm³ (anhydrous)
Solubility:
- Soluble in water (9.5 g/100 mL at 25 °C)
- Soluble in alcohols
pH Level: ~1.3 (0.1 M aqueous solution; strongly acidic)
Vapor Pressure: Negligible
Flash Point: Not applicable (non-volatile solid)
Autoignition Temperature: Not flammable under standard conditions
Viscosity: Not applicable

3. Safety & Hazard Attributes

Hazard Class (GHS Classification):
- Acute toxicity (oral, dermal) – Category 4
- Skin corrosion/irritation – Category 1B
- Serious eye damage – Category 1
NFPA Ratings:
- Health: 3
- Flammability: 1
- Reactivity: 1
Exposure Limits:
- OSHA PEL: 1 mg/m³ (TWA)
- ACGIH TLV: 1 mg/m³ (TWA)
Reactivity:
- Incompatible with strong oxidizers, bases, and reducing agents
- Can react with metals to produce hydrogen gas

4. Storage & Handling Attributes

Storage Conditions:
- Store in tightly closed containers
- Keep in cool, dry, well-ventilated area
Incompatible Materials:
- Strong bases, oxidizers, sodium hypochlorite, nitric acid
Container Type: Plastic or corrosion-resistant glass
Shelf Life & Expiration Date: Stable for 2–3 years under recommended conditions
Special Handling Requirements:
- Use gloves, safety goggles, lab coat
- Handle in a fume hood to avoid inhalation

5. Regulatory & Compliance Attributes

Regulatory Status:
- Listed in REACH, TSCA, and other major regulatory databases
- Controlled under workplace exposure laws
Hazard Symbols (GHS Pictograms):
Transportation Restrictions:
- UN Number: UN 3261 (Corrosive solid, acidic, organic, n.o.s.)
- Hazard Class: 8
Waste Disposal Method:
- Dispose of according to local regulations
- Do not release into sewers or environment

6. Environmental & Health Impact

Ecotoxicity:
- Harmful to aquatic life at high concentrations
Persistence in Environment: Readily biodegradable
Carcinogenicity/Mutagenicity:
- Not classified as carcinogenic
- No mutagenic effects reported in standard assays
Biodegradability: Rapidly biodegradable under aerobic conditions

SAFETY HANDLING PRECAUTIONS

SAFETY PRECAUTIONS

Personal Protective Equipment (PPE):

Wear a lab coat, nitrile gloves, and chemical safety goggles.
Use a dust mask or handle in a well-ventilated area or fume hood.

Handling:

Avoid contact with skin, eyes, and clothing.
Prevent inhalation of dust or vapors.
Wash hands thoroughly after handling.
Do not mix with strong oxidizers or bases.

Storage:

Store in a tightly sealed container in a cool, dry, and well-ventilated place.
Keep away from moisture, heat sources, and incompatible substances such as bases and oxidizing agents.
Protect from light and humidity.

FIRST AID MEASURES

Inhalation:

Move the person to fresh air immediately.
Seek medical attention if symptoms such as coughing or breathing difficulty occur.

Skin Contact:

Remove contaminated clothing.
Wash skin thoroughly with soap and water.
Get medical attention if irritation or burns develop.

Eye Contact:

Rinse cautiously with water for at least 15 minutes.
Remove contact lenses if present and easy to do.
Seek immediate medical attention.

Ingestion:

Rinse mouth with water.
Do not induce vomiting.
Seek immediate medical attention—can be harmful or fatal if