Strontium Carbonate
　　Other name：C.I.77837; Strontium carbonate; Strontium carbonate,high purity; Strontium carbonate,electronic grade; Strontiumcarbonate
　　CAS No.: 1633-05-2;1633-55-2
　　EINECS No.: 216-643-7
　　HS No.：2836920000
　　Molecular Formula: SrCO₃    
　　Molecular weight: 147.63
　　1. Appearance: White powder or granule
　　2. Specifications:
　　2.1. Strontium Carbonate Industry Grade
　　Quality standards：HG/T2969-1999

Item                                   Index		Ⅰ	Ⅱ
SrCO3+BaCO3, wt%≥		98.0	98.0
SrCO3 , wt%≥		97	95
BaCO3, wt%≤		2.0	3.0
CaCO3, wt%≤		0.5	1.0
Na2O , wt%≤		0.3	0.3
Iron（Fe2O3）, wt%≤		0.01	0.01
Chloride（as Cl-），wt%≤		0.12	0.12
Total sulfur（as SO42-）,wt%≤		0.35	0.45
Moisture , wt%≤		0.30	0.50
Cr2O3 , wt%≤		0.0005	0.0005
average particle size (D50) （Powder）	um	3.0-5.0	0.5-2.0
Particle size (granular)	+1000um、%≤	1	-
	-150um、%≤	10	-

　　2.2. Strontium Carbonate high purity
　　Quality standards：

Index                      Item	Excellent product	Superior product	First grade
Strontium Carbonate (SrCO3), wt%≥	99.5	99.0	98.5
Calcium (Ca) , wt%≤	0.05	0.05	0.1
Magnesium(Mg) , wt%≤	0.002	0.005	0.01
Iron（Fe）, wt%≤	0.001	0.002	0.005
Sodium (Na) , wt%≤	0.005	0.01	0.02
Chloride (Cl), wt%≤	0.001	0.002	0.01
Heavy metal as Pb, wt%≤	0.002	0.003	0.005
Loss on drying (110℃)，wt%≤	0.5	1.0	1.0

　　3. Uses: Mainly used in Electron component, skyrocket material, to make rainbow glass, and other strontium salt preparation, etc.
　　4. Packaging: Net 25kg in plastic bag lined plastic film woven bag, can also package according to customer request
　　5. Storage: Stored in cool and ventilated, avoid light place.
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