Silicon dioxide 155

• CAS: 7631-86-9
• Transport Package: 20kgs or 400kgs
• Specification: 99%
• Trademark: BEST
• Origin: China
• Model NO.: 155
• Production Capacity: 100000

Product Description

Name: silica, silicon dioxide, silica gel, SiO_2, amorphous, hydrated
Formula:  SiO_2.nH₂O
Molecular weight: 60.08
CAS #: 7631-86-9
EINECS #: 231-545-4
Usages: silica for rubber industry:
The Low Polymerizing & High Dispersion Silica developed independently by specially for green tires could significantly reduce rolling resistance, improve. wet-skid resistance, steering controllability and reduce wear for tires, so as to lower fuel consumption and improve driving safety for vehicles. Currently, four series of silica for rubber industry used in market: conventional silica(CS), environmentally protection & dustless granular silica(GRS), Easy dispersion silica(EDS), low polymerizing & high dispersion silica(LPS&HDS)

Packing: 25kg/bag , 400kgs/ bag, 800kgs/bag

1.Conventional Silica(CS)

Product		Conventional Silica (CS)
Item	unit	115	125	155	175	195
physical form		Powder
BET	m2/g	100-130	115-135	140-165	165-185	185-205
CTAB	m2/g	90-120	105-125	130-155	155-175	175-195
bulk density	g/l	190~260
silica(dry basis)	%	≥98
drying loss	%	4.0~8.0
ignition loss (dry basis)	%	≤7.0
pH(10% aqueous solution)		6.0~7.5
DBP	cm3/100g	200~300
Sieve Residue 45um	%	≤0.5
Cu	mg/kg	≤30
Mn	mg/kg	≤50
Fe	mg/kg	≤1000
Soluble salts (in forms of Na2SO4)	%	≤1.6

Granular silica(GRS)

Product		environmentally protection GRanular Silica (GRS)
Item	unit	115GR	125GR	155GR	175GR	195GR
physical form		Granule
BET	m2/g	100-130	115-135	140-165	165-185	185-205
CTAB	m2/g	90-120	105-125	130-155	155-175	175-195
bulk density	g/l	270~340
silica(dry basis)	%	≥98
drying loss	%	4.0~8.0
ignition loss (dry basis)	%	≤7.0
pH(10% aqueous solution)		6.0~7.5
DBP	cm3/100g	200~300
Sieve Residue 45um	%	≤0.5
Cu	mg/kg	≤30
Mn	mg/kg	≤50
Fe	mg/kg	≤1000
Soluble salts (in forms of Na2SO4)	%	≤1.6

Easy Dispersion Silica (EDS)

Product Series		Easy Dispersion Silica (EDS)
Item	unit	125FFG	155FFG	175FFG	195FFG
physical form		Mirco-pearl
BET	m2/g	100-140	140-175	160-190	185-225
CTAB	m2/g	90-130	125-165	150-180	170-215
bulk density	g/l	240~300
silica(dry basis)	%	≥98
drying loss	%	4.0~8.0
ignition loss (dry basis)	%	≤7.0
pH(10% aqueous solution)		6.0~7.5
DBP	cm3/100g	200~300
Sieve Residue 45um	%	≤0.5
Cu	mg/kg	≤30
Mn	mg/kg	≤50
Fe	mg/kg	≤1000
Soluble salts (in forms of Na2SO4)	%	≤1.6

Low Polymerizing & High Dispersion Silica(LPS&HDS)

Product		Low Polymerizing & High Dispersion Silica (LPS & HDS)
Item	unit	HD90GR	HD115GR	HD165GR	HD175GR	HD200GR
physical form		Granule
BET	m2/g	80-100	100-130	150-180	160-190	180-220
CTAB	m2/g	75-95	95-125	145-175	155-185	175-215
bulk density	g/l	280~340
silica(dry basis)	%	≥98
drying loss	%	4.0~8.0
ignition loss (dry basis)	%	≤7.0
pH(10% aqueous solution)		6.0~7.5
DBP	cm3/100g	200~300
sieve residue 45um	%	≤0.5
Cu	mg/kg	≤30
Mn	mg/kg	≤50
Fe	mg/kg	≤1000
Soluble salts (in forms of Na2SO4)	%	≤1.6

 

Product Series		Low Polymerizing & High Dispersion Silica (LPS & HDS)
Item	unit	HD90MP	HD115MP	HD165MP	HD175MP	HD200MP	HD250MP
physical form		Mirco-pearl
BET	m2/g	80~100	100~130	150~180	160~190	200~230	220~270
CTAB	m2/g	75~95	95~125	145~175	155~185	195~225	210~265
bulk density	g/l	240~300
silica(dry basis)	%	≥98
drying loss	%	4.0~8.0
ignition loss (dry basis)	%	≤7.0
pH(10% aqueous solution)		6.0~7.5
DBP	cm3/100g	200~300
sieve residue 45um	%	≤0.5
Cu	mg/kg	≤30
Mn	mg/kg	≤50
Fe	mg/kg	≤1000
Soluble salts (in forms of Na2SO4)	%	≤1.6

2. Silica for Feed Additive
C series of silica is mainly used for feed addictive, divided into three types: carriers, free-flow agent and anti-caking agent. It occupies an important position in international mainstream markets. C series product has already obtained feed addiction production license issued by China Ministry of Agriculture, completed FAMI-QS authentication, certified with ISO9001 and US FDA.

Item	unit	C40	C50	C80	C2000
physical form		Powder	Micro-pearl	Powder	Super-fine powder
Particle Size(D50)	um	25-55	250-330	100-170	5-15
DBP	cm3/100g	250-350	200-300	230-300	250-350
silica(dry basis)	%	≥98
drying loss	%	≤8.0
ignition loss (dry basis)	%	≤7.0
pH(10% aqueous solution)		6.0~7.5
Heavy Metal(in form of Pb)	%	≤0.003
As	%	≤0.0003
Pb	%	≤0.001
Soluble salts (in forms of Na2SO4)	%	≤3.0