General Information
Version
6
Revision date
2025-12-18
Product name
Formamidinesulfinic acid
Product Synonyms
Aminoiminomethanesulfinic acid; Thiourea dioxide
CAS No.
1758-73-2
Emergency telephone
001-800-227-6701, +32 14 57 52 11, 001-201-796-7100, +32 14 57 52 99, 001-800-424-9300, 001-703-527-3887
Icons in SDS
Company Information
company name
Fisher Scientific Company
GHS Information
Signal word
Danger
Hazard Codes
Hazard statements (CLP)
H252, H315, H318, H335, H373
Hazard statements
Code
Statements
H252
Self-heating in large quantities; may catch fire
Section 2
SECTION 2: Hazards identification
(29 CFR 1910.1200) Classification
Signal word
Danger
Hazard statements
Self-heating in large quantities; may catch fire Causes skin irritation Causes serious eye damage May cause respiratory irritation May cause damage to organs through prolonged or repeated exposure Harmful if swallowed or if inhaled
Prevention
Wash face, hands and any exposed skin thoroughly after handling Do not eat, drink or smoke when using this product Use only outdoors or in a well-ventilated area Wear protective gloves/protective clothing/eye protection/face protection Do not breathe dust/fume/gas/mist/vapors/spray Keep cool. Protect from sunlight
Response
Get medical attention/advice if you feel unwell Inhalation IF INHALED: Remove person to fresh air and keep comfortable for breathing Call a POISON CENTER or doctor if you feel unwell Skin IF ON SKIN: Wash with plenty of soap and water If skin irritation occurs: Get medical advice/attention Take off contaminated clothing Eyes IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing Immediately call a POISON CENTER or doctor/physician Ingestion IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell Rinse mouth
Storage
Store in a well-ventilated place. Keep container tightly closed Store locked up Store separately
Disposal
Dispose of contents/container to an approved waste disposal plant
2.3 Other hazards
Risk of explosion if heated under confinement
2.1 Classification of the substance or mixture
Category 2 Acute oral toxicity Category 4 Acute Inhalation Toxicity - Dusts and Mists Category 4 Skin Corrosion/Irritation Category 2 Serious Eye Damage/Eye Irritation Category 1 Specific target organ toxicity (single exposure) Category 3 Target Organs - Respiratory system. Specific target organ toxicity - (repeated exposure) Category 2 Target Organs - Blood. Label Elements Signal Word
