Bismuth Subgallate

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Bismuth Subgallate is a pale yellow, odorless, tasteless powder composed of bismuth and gallic acid derivatives. It is widely used as an internal deodorant for controlling odor from flatulence and stool, especially in patients with gastrointestinal conditions or post-surgery stomas. It also serves as a mild astringent and has hemostatic properties, making it useful in wound care products. Due to its insolubility in water and stability, it is suited for oral and topical formulations.

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Categories: Active Pharmaceutical Ingredients (APIs), Antiseptics and Disinfectants Tags: Antiseptic agent, Bismuth salt, Gastrointestinal treatment, Odor control agent, Pharmaceutical Raw Material, White crystalline powder

Description

Table of Contents

Bismuth Subgallate

Primary Uses

Pharmaceuticals

Used as an internal deodorant to reduce odor from flatulence and stool in patients with ostomies, fecal incontinence, or gastrointestinal disorders.
Formulated in oral deodorizing tablets for post-surgical patients.
Serves as a topical astringent in ointments and creams for minor cuts, abrasions, and ulcers.
Used in wound dressings as a hemostatic agent to stop minor bleeding.

Medical & Clinical

Incorporated in hemorrhoid creams and suppositories for its soothing, anti-odor, and protective effects.
Occasionally used in dental pastes to reduce oral odor and inflammation.

Secondary Uses

Veterinary Medicine

Used as a deodorizing and protective agent in animals with digestive or wound issues.

Cosmetic & Hygiene

Used in some antiperspirants and deodorants for odor control and skin astringency.

Industrial Applications

Rarely used as a component in odor-control formulations in specialized sanitation or medical environments.

PRODUCT KEY FEATURES

Basic Identification Attributes

Chemical Name (IUPAC): Bismuth(3+) 3,4,5-trihydroxybenzoate
Common/Trade Name: Bismuth Subgallate
CAS Number: 99-26-3
HS Code: 2833.29.00
Molecular Formula: C7H5BiO6
Synonyms:
- Basic bismuth gallate
- Bismuth(III) subgallate
- Subgallate of bismuth

2. Physical & Chemical Properties

Physical State: Crystalline powder
Color & Odor: Pale yellow; odorless
Melting Point: Decomposes at ~223°C
Boiling Point: Not applicable (decomposes)
Density: ~1.1 g/cm³
Solubility: Insoluble in water and alcohol; soluble in mineral acids and alkaline solutions
pH (in suspension): Slightly acidic
Vapor Pressure: Negligible
Stability: Stable under normal conditions

3. Safety & Hazard Attributes

Hazard Class (GHS): Not classified as hazardous
NFPA Ratings:
- Health: 1
- Flammability: 0
- Reactivity: 0
Exposure Limits: No specific OSHA/ACGIH limits; avoid dust inhalation
Toxicity: Low acute toxicity; large doses may cause reversible darkening of tongue or stool
Reactivity: Non-reactive under standard conditions; avoid strong acids and bases

4. Storage & Handling Attributes

Storage Conditions: Store in a cool, dry place away from moisture and light
Container Type: Airtight, non-reactive containers (e.g., HDPE or amber glass)
Shelf Life: Typically 3–5 years if properly stored
Special Handling: Avoid dust formation; use PPE when handling powder

5. Regulatory & Compliance Attributes

FDA Status: Approved OTC internal deodorant
Pharmacopoeia Compliance: Listed in USP, BP, and Ph. Eur.
Transportation: Not regulated as hazardous
Waste Disposal: Dispose as non-hazardous pharmaceutical waste in accordance with local regulations

6. Environmental & Health Impact

Ecotoxicity: Minimal; low impact on aquatic life
Persistence: Inorganic, does not biodegrade
Bioaccumulation: Not expected to bioaccumulate
Carcinogenicity/Mutagenicity: Not classified as carcinogenic or mutagenic
Biodegradability: Not biodegradable; chemically inert in soil and water

SAFETY HANDLING PRECAUTIONS

Safety Handling Precautions

Personal Protective Equipment (PPE):
- Gloves
- Dust mask or respirator
- Protective goggles
- Lab coat or apron
Handling Measures:
- Avoid inhalation and skin contact
- Use local exhaust ventilation to minimize dust
- Work in well-ventilated areas
Storage Measures:
- Keep container tightly closed
- Protect from humidity and direct sunlight
Hygiene Practices:
- Wash hands thoroughly after handling
- Do not eat, drink, or smoke while handling the substance

First Aid Measures

Inhalation: Move to fresh air. Seek medical attention if breathing difficulties persist.
Skin Contact: Wash with soap and water. Remove contaminated clothing.
Eye Contact: Rinse with plenty of water for at least 15 minutes. Seek medical advice if irritation continues.
Ingestion: Rinse mouth with water. Do not induce vomiting. Seek medical attention if large quantities are ingested.

Firefighting Measures

Fire Hazards: Non-flammable
Extinguishing Media: Use dry chemical, foam, or water spray as appropriate for surrounding fire
Special Precautions: Firefighters should wear full protective gear and SCBA
Decomposition Products: May emit bismuth and organic fumes under extreme heat