What is 70% isopropyl alcohol CAS No 67-63-0?
CAS 67-63-0 Isopropyl alcohol (2-propanol), also known as isopropanol or IPA, is the most common and widely used disinfectant within pharmaceutics, hospitals, cleanrooms, and electronics or medical device manufacturing.
70% IPA (isopropyl alcohol) is a low-toxicity solvent made of 70% pure alcohol and 30% water. It is used in first aid products such as rubbing alcohol. It is a diluted form of 99% IPA, which is safe for everyday applications. It is more volatile and lower in flammability than 99% pure IPA, allowing for a broad range of applications.
CAS number: 67-63-0
Structure:
Is it safe to use 70% isopropyl alcohol on your skin?
Yes, for external use only and occasional application, it is generally safe and is the standard concentration for topical antiseptics (like rubbing alcohol). However:
- Do not use on large areas of skin, broken skin, or for prolonged periods. It is a skin irritant and can cause excessive dryness, cracking, and dermatitis by defatting the skin.
- Never use it for "alcohol baths" or to reduce fever. It can be absorbed through the skin, leading to toxicity.
It is for disinfection of small, intact skin areas (e.g., before an injection). For hand sanitizing, alcohol-based gels with emollients are often gentler.
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