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7784-31-8 Patent alum

product Name	Patent alum
CAS No	7784-31-8
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;;31-5(2,3)4;;;;;;;;;/h;;3(H2,1,2,3,4);91H2/q2+3;;;;;;;;;;;;/p-6
Molecular Structure
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:;
MSDS	Material Safety Data Sheet

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