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Calcium carbonate

Cas:
471-34-1
Molecular Structure:
MDL:
--MFCD00010906
Molecular Formula:
CaCO3
Molecular Weight:
100.09
Alias:
轻质碳酸钙,沉淀碳酸钙,轻钙,沉降碳酸钙 Precipitated chalk Calcium carbonate precipitated
Product order:
Name Specifications Packing Price Delivery
Calcium carbonate USP 500g RMB 473 Consulting service
Calcium carbonate 99.999% 100g RMB 4287.8 Consulting service
Calcium carbonate 99.999% 25g RMB 1724.8 Consulting service
Calcium carbonate 99.999% 5g RMB 437.8 Consulting service
Calcium carbonate 用于昆虫细胞培养,99% 500g RMB 418 Consulting service
Calcium carbonate 用于昆虫细胞培养,99% 100g RMB 231 Consulting service
Calcium carbonate 99.99% 100g RMB 308 Consulting service
Calcium carbonate 99.99% 25g RMB 94.6 现货
Calcium carbonate SP 25g RMB 94.6 Consulting service
Calcium carbonate PT 50g RMB 94.6 Consulting service
Calcium carbonate AR 25Kg RMB 1078 Consulting service
Calcium carbonate AR 500g RMB 26.4 Consulting service
Character:
白色粉末或无色结晶。无气味。无味。825℃分解为氧化钙和二氧化碳。溶于稀酸而放出二氧化碳,不溶于及醇。有两种结晶,一种是正交晶体文石,一种是六方菱面晶体方解石。方解石,有刺激性。
密度:2.711
熔点:1339℃
Quality Standard:
 
 
   GB/T 15897-1995
项目ltem                                 分析纯          化学纯
                                          (AR)            (CP)
含量(CaCO3)Assay,%                         ≥99.0          98.0
澄清度试验Clarity                         合格           合格
盐酸不溶物Insoluble in hy-
drochloride acid,%                       ≤0.01          0.03
碱度(以OH)Alkalinity,mmol/100g           ≤0.25          0.25
氯化物(Cl)Chloride,%                     ≤0.002         0.01
硫酸盐(SO4)Sulfate,%                     ≤0.01          0.05
钠(Na)Sodium,%                           ≤0.1           0.3
钾(K)Potassium,%                         ≤0.005         0.05
镁(Mg)Magnesium,%                        ≤0.05          0.20
锶(Sr)Strontium,%                        ≤0.05          0.10
钡(Ba)Barium,%                           ≤0.02          0.04
铁(Fe)lron,%                             ≤0.001         0.005
重金属(以Pb计)Heavy metals,%             ≤0.002         0.01

GB 12596-90
项目ltem                                  基准试剂
                        (PT)
含量(CaCO3),%                            99.95~100.05
澄清度试验Clarity                           合格
干燥失重Loss on drying,%            ≤0.2
碱度(以OH计)Alkalinity,mmol/100g          ≤0.25
氯化物(Cl)Chloride,%                      ≤0.001
硫酸盐(SO4)Sulfale,%                      ≤0.01
总氮量(N)Total nitrogen,%                 ≤0.01
镁(Mg)Magnesium,%                         ≤0.02
铁(Fe)Iron ,%                             ≤0.001
重金属(以Pb计)Heavy metals,%              ≤0.001


ACS级
项目名称Item                                                 ACS Grade
含量(干基,CaCO3)Assay                                        99.0%
稀盐酸不溶物Insoluble in dilute hydrochloride                ≤0.001%
氯化物(Cl)Chloride(Cl)                                       ≤0.001%
氟化物(F)Fluoride(F)                                         ≤0.0015%
硫酸盐(SO4)Sulfate                                           ≤0.005%
铵(NH4)Ammonium                                              ≤0.003%
重金属(以Pb计)Heavy metals(as Pb)                            ≤0.001%
铁(Fe)Iron(Fe)                                               ≤0.002%
钡(Ba)Barium(Ba)                                             ≤0.01%
镁(Mg)Magnesium(Mg)                                          ≤0.01%
钾(K)Potassium(K)                                            ≤0.01%
钠(Na)Sodium(Na)                                             ≤0.01%
锶(Sr)Strontium(Sr)                                          ≤0.1%    

品级Grade                               用于昆虫细胞培养  
                                (for insect cell culture, ~99%)
外观Appearance                          白色粉末
红外光谱鉴别Infrared spectrometry       Conforms
纯度Purity                              ≥99.0% (GC)
昆虫细胞培养Insect cell test            pass
盐酸溶解试验solubility in HCL           500MG/ML, clear, colorless


99.999%:

外观Appearance                          白色粉末
X-射线衍射分析X-Ray Diffraction         Conforms to standard
纯度Purity                              ≥99.99% Based On Trace Metals Analysis
Ca                                      38.6 - 41.4 % (Complexiometric EDTA)
ICP Assay                               Confirms Calcium component
痕量金属杂质Trace Metal Analysis        ≤10ppm by ICP Atomic emission
(Al、As、Ba、Cu、Fe、K、Mg、Na、Ti、V、Zn)

USP级
ASSAY (DRIED BASIS) 98.0 - 100.5 % 
LOSS ON DRYING -- 2.0 % 
ACID-INSOLUBLE SUBSTANCES -- 0.2 % 
FLUORIDE -- 0.005 % 
ARSENIC (As) -- 3 PPM 
BARIUM -- TO PASS TEST 
IRON (Fe) -- 0.1 % 
LEAD (Pb) -- 3 PPM 
MERCURY -- 0.5 ppm 
MAGNESIUM AND ALKALI SALTS -- 1.0 % 
HEAVY METALS -- 0.002 % 

Storage:
密封保存。
用途  检定和测定有机化合反应中的卤素,与氯化铵一起分解硅酸盐,制备氯化钙溶液以标化皂液,水分析,检定磷。制造光学钕玻璃原料。
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