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Low-sodium ultra-stable high-silicon Y molecular sieve DAY-12

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Low-sodium ultra-stable high-silicon Y molecular sieve DAY-12

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Low-sodium ultra-stable high-silicon Y molecular sieve DAY-12

Low-sodium ultra-stable high-silicon Y molecular sieve DAY-12

Low-sodium ultra-stable high-silicon Y molecular sieve DAY-12

Na₂O is more than 0.1% and SiO₂/Al₂O₃ molar ratio is no less than 10.

DAY-12 Quality Control Targets

Item	Unit	Max	Typical	Max	Analytical Method
Relative crystallinity	%	70	75		X-ray diffractometer
Cell parameter	×10-10m	24.42	24.46	24.48	X-ray diffractometer
Silica-alumina ratio	/	10	10.5	13	X-ray diffractometer
Total specific surface	m²/g	680	700		N₂ Adsorption
Na₂O	wt %			0.1	N₂ Adsorption
SO₄^2-	wt %		0.2	0.4	Flame Photometric Analysis
LOI	wt %			15	Gravimetric Analysis
CI^-	wt %		0.2	0.4	Chemical Analysis
D,50	μm		5	6	Laser Scatter Distribution

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