CAS No: 7784-31-8, Chemical Name: Patent alum
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7784-31-8 Patent alum

product Name Patent alum
Synonyms dialuminum trisulfate nonahydrate; aluminum sulfate hydrate (2:3:9); Aluminum sulfate octadecahydrate
Molecular Formula H18Al2O21S3
Molecular Weight 504.2884
InChI InChI=1/2Al.3H2O4S.9H2O/c;;3*1-5(2,3)4;;;;;;;;;/h;;3*(H2,1,2,3,4);9*1H2/q2*+3;;;;;;;;;;;;/p-6
CAS Registry Number 7784-31-8
Molecular Structure 7784-31-8 Patent alum
Melting point 86℃
Boiling point 330°C at 760 mmHg
Water solubility soluble
Vapour Pressur 3.35E-05mmHg at 25°C
Hazard Symbols  Xn:Harmful;
 N:Dangerous for the environment;
Risk Codes R22:;
R36/37/38:;
R41:;
R51/53:;
Safety Description S26:;
S29:;
S37/39:;
S61:;