Aluminum Hydroxide-High White

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By Color

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Aluminum Hydroxide-High White

Al(OH)₃

CAS NO. 21645-51-2

▎General Properties

Molecular weight	78	Mohs hardness	3
Density g/cm³	2.4	Ratio of refraction	1.58

▎Physical and Chemical Properties

Item Model		HJX-3G	HJM-7G	HJM-8G	HJM-10G	HJM-15G	HJM-20G	HJM-25G	HJM-50G	HJ-80G
Chemical constituent	Al(OH)₃ [%] ≥	99.5	99.5	99.5	99.5	99.5	99.5	99.5	99.5	99.5
	Al₂O₃ [%] ≥	64.5	64.5	64.5	64.5	64.5	64.5	64.5	64.5	64.5
	SiO₂ [%] ≤	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02
	Fe₂O₃ [%] ≤	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01
	Na₂O [%] ≤	0.30	0.30	0.30	0.30	0.30	0.30	0.30	0.30	0.30
	Loss on ignition ≤	35.0	35.0	35.0	35.0	35.0	35.0	35.0	35.0	35.0
	Attached water ≤	0.4	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3
	+325 mesh 325mesh≤	0.01	0.01	0.01	0.1	15	25	-	-	-
	oil absorption ≈	33	25	24	24	18	18	16	18	20
Mean particle diameter（D50） µ m≈		3.5	7	8	10	15	20	25	50	80
Whiteness [R457] ≥		98	97	97	97	96	94	94	93	92
PH value ≈		9