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
anhydrous (CAS: 7772-98-7 ) is a crystalline powder substance .
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GHS Hazard Classification & Safety Warnings
Globally Harmonized System (GHS) hazard pictograms, signal words, and safety classifications
Classification Status
Signal Word
GHS Hazard Pictograms & Safety Symbols
GHS (Globally Harmonized System) pictograms indicate specific chemical hazard categories and safety precautions
Hazard Statements
Precautionary Statements
Manufacturers & Suppliers
Authorized suppliers, manufacturers, and distribution network information
Alfa Aesar Thermo Fisher Scientific Chemicals, Inc.
manufacturer
24/7 Emergency Response
Critical emergency contact numbers for chemical spills, exposure incidents, and medical emergencies
Emergency Contact
(800) 343-0660
During normal business hours (Monday-Friday, 8am-7pm EST)
Carechem 24
(866) 928-0789
After normal business hours
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 |
|---|---|---|---|
| Sodium thiosulfate, anhydrous EC: 231-867-5 | 7772-98-7 | 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.
Skin Contact
Immediately wash with water and soap and rinse thoroughly.
Eye Contact
Rinse opened eye for several minutes under running water. Then consult a doctor.
Ingestion/Swallowing
Seek medical treatment.
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
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 Nitrile rubber, NBR. Penetration time of glove material (in minutes) 480. Glove thickness: 0.11 mm.
Eye Protection
Safety glasses with side shields / NIOSH (US) or EN 166(EU).
Respiratory Protection
Use suitable respirator when high concentrations are present. Use suitable respiratory protective device in case of insufficient ventilation. Recommended filter device for short term use: Use a respirator with type N95 (USA) or PE (EN 143) cartridges 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.
Skin/Body Protection
Protective work clothing.
Transportation & Shipping Information
UN numbers, shipping names, transport classes, and regulatory transport requirements
Proper Shipping Name
Not applicable
Transport Hazard Class
Not applicable
Packing Group
Not applicable
Chemical Safety FAQ & Common Questions
Most frequently asked questions about safety, handling, storage, and regulatory compliance
What is the hazard signal word for anhydrous?
The signal word for this substance is "no signal word".
What is the solubility of anhydrous?
700 g/l
What is the melting point of anhydrous?
The melting point is Not determined and the boiling point is Not determined.