Chemical Product Identification & Regulatory Data
Official chemical identifiers, CAS numbers, and regulatory compliance information
Basic Product Information
Regulatory Identifiers
Chemical Abstracts Service registry number - unique identifier for chemical substances
European Community number - used for regulatory compliance in EU/EEA
Uses Information
Overview
Trimethyl phosphite (CAS: 121-45-9 ) is a unpleasant substance commonly used su24 scientific research and development.
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GHS Hazard Classification & Safety Warnings
Globally Harmonized System (GHS) hazard pictograms, signal words, and safety classifications
Classification Status
Signal Word
Hazard Classifications
GHS Hazard Pictograms & Safety Symbols
GHS02
GHS07
GHS08
GHS (Globally Harmonized System) pictograms indicate specific chemical hazard categories and safety precautions
Hazard Statements
- H226: Flammable liquid and vapour.
- H302: Harmful if swallowed.
- H315: Causes skin irritation.
- H319: Causes serious eye irritation.
- H335: May cause respiratory irritation.
- H361: Suspected of damaging fertility or the unborn child.
Precautionary Statements
- P201: Obtain special instructions before use.
- P210: Keep away from heat/sparks/open flames/hot surfaces. - No smoking.
- P261: Avoid breathing dust/fume/gas/mist/vapours/spray.
- P280: Wear protective gloves/protective clothing/eye protection/face protection.
- P281: Use personal protective equipment as required.
- P303+P361+P353: IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
- P304+P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
- P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
- P405: Store locked up.
- P501: Dispose of contents/container in accordance with local/regional/national/international regulations.
Chemical Manufacturers & Supply Chain
Authorized suppliers, manufacturers, and distribution network information
Alfa Aesar Thermo Fisher Scientific Chemicals, Inc.
manufacturer
24/7 Emergency Response & Poison Control
Critical emergency contact numbers for chemical spills, exposure incidents, and medical emergencies
Emergency Contact
(800) 343-0660
Monday-Friday, 8am-7pm EST
Carechem 24
(866) 928-0789
Chemical Composition & Hazardous Ingredients
Detailed component analysis, concentration ranges, and hazardous substance identification
Product Type
substanceGeneral Composition
Substances
Chemical Components & Hazardous Substances
| Chemical Name | CAS Number | Concentration | Hazardous |
|---|---|---|---|
| Trimethyl phosphite EC: 204-471-5 | 121-45-9 | 100% | ✓ Non-hazardous |
Emergency First Aid Measures
Critical first aid procedures for chemical exposure incidents and medical emergencies
🫁 Inhalation Exposure
Supply fresh air. If required, provide artificial respiration. Keep patient warm.
Symptoms:
May cause respiratory irritation.
🖐️ Skin Contact
Immediately wash with water and soap and rinse thoroughly.
Symptoms:
Causes skin irritation.
👁️ Eye Contact
Rinse opened eye for several minutes under running water. Then consult a doctor.
Symptoms:
Causes serious eye irritation.
🍽️ Ingestion/Swallowing
Seek medical treatment.
Symptoms:
Harmful if swallowed.
🚨 Immediate Medical Attention Required
No further relevant information available.
Related Chemical Substances & Alternative Products
Similar chemicals with comparable safety profiles and industrial applications
Technical Specifications & Material Properties
Physical state, chemical properties, melting point, boiling point, and material characteristics
Exposure Controls & Personal Protective Equipment (PPE)
Occupational exposure limits, engineering controls, and required safety equipment
🏭 Engineering Controls
Properly operating chemical fume hood designed for hazardous chemicals and having an average face velocity of at least 100 feet per minute.
🧤 Hand Protection
Impervious gloves. Check protective gloves prior to each use for their proper condition. The selection of suitable gloves not only depends on the material, but also on quality. Quality will vary from manufacturer to manufacturer. Material of gloves Butyl rubber, BR. Penetration time of glove material (in minutes) 480. Glove thickness 0.3 mm.
👁️ Eye Protection
Safety glasses.
😷 Respiratory Protection
Use suitable respirator when high concentrations are present. Recommended filter device for short term use: Use a respirator with multi-purpose combination (US) or type ABEK (EN 14387) as a backup to engineering controls. Risk assessment should be performed to determine if air-purifying respirators are appropriate. Only use equipment tested and approved under appropriate government standards such as NIOSH (USA) or CEN (EU).
🦺 Skin/Body Protection
Protective work clothing.
Transportation & Shipping Information
UN numbers, shipping names, transport classes, and regulatory transport requirements
🏷️ UN Number
UN2329
📦 Proper Shipping Name
Trimethyl phosphite
⚠️ Transport Hazard Class
3
📋 Packing Group
II
🚢 IMDG Maritime Transport Precautions
F-E,S-Ď
✈️ IATA Air Transport Precautions
F-E,S-Ď
Chemical Safety FAQ & Common Questions
Most frequently asked questions about safety, handling, storage, and regulatory compliance
What is the hazard signal word for Trimethyl phosphite?
The signal word for this substance is "warning".
What is the physical form of Trimethyl phosphite?
Trimethyl phosphite is a liquid appearing as unpleasant . It has unpleasant odor.
What is the solubility of Trimethyl phosphite?
Hydrolyzes
What is Trimethyl phosphite used for?
SU24 Scientific research and development
What are the hazard statements for Trimethyl phosphite?
This substance has 6 hazard statements: H226: Flammable liquid and vapour. H302: Harmful if swallowed. H315: Causes skin irritation. H319: Causes serious eye irritation. H335: May cause respiratory irritation. H361: Suspected of damaging fertility or the unborn child.
What is the melting point of Trimethyl phosphite?
The melting point is -78 ℃ (-108 ºF) and the boiling point is 111-112 °C (232-234 °F).