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Glycerol

Cas:
56-81-5
Molecular Structure:
MDL:
--MFCD00004722
Molecular Formula:
C3H8O3;HOCH2CH(OH)CH2OH
Molecular Weight:
92.09
Alias:
1,2,3-丙三醇,丙三醇 Glycerol Glycerin
Product order:
Name Specifications Packing Price Delivery
Glycerol >99.0% 100ml RMB 82.5 現(xiàn)貨
Glycerol >99.0% 500ml RMB 330 現(xiàn)貨
Glycerol Natural, USP, EP, BP, JP 級 4L RMB 902 Consulting service
Glycerol 分子生物學(xué)級,無菌 100g RMB 423.5 Consulting service
Glycerol EP, BP, JP, USP級 250Kg RMB 9020 Consulting service
Glycerol EP, BP, JP, USP級 500ML RMB 85.8 Consulting service
Glycerol 分析標準品 1Mg RMB 528 現(xiàn)貨
Glycerol 分子生物學(xué)級 1L RMB 528 Consulting service
Glycerol 分子生物學(xué)級 250ML RMB 181.5 Consulting service
Glycerol 色譜固定液 100ML RMB 52.8 Consulting service
Glycerol ACS 500ML RMB 41.8 Consulting service
Glycerol AR 25Kg RMB 858 Consulting service
Glycerol GCS 5ML RMB 57.2 促銷
Character:
澄清、粘稠液體無臭,溶于水、醇,不溶于醚、苯、三氯甲烷及二硫化碳,于空氣中易吸收水分。有暖甜味。能從空氣中吸收潮氣,也能吸收硫化氫、氰化氫和二氧化硫。對石蕊呈中性。長期放在0℃的低溫處,能形成熔點為 17.8℃有光澤的斜方晶體。遇強氧化劑如三氧化鉻、氯酸鉀、高錳酸鉀能引起燃燒和爆炸。能與水、乙醇任意混溶,1份本品能溶于11份乙酸乙酯,約500 份乙醚,不溶于氯仿、四氯化碳、石油醚和油類。半數(shù)致死量(大鼠,經(jīng)口)>20ml/kg。有刺激性。
密度:1.25
熔點:17.8℃
沸點:182 °C/20 mmHg
閃點:176℃
折光率n20/D:1.4746
Quality Standard:
   GB/T 687-94
項目Item                                               分析純     化學(xué)純
                                                       (AR)        (CP)
含量(C3H8O)Assay,%                                     ≥99.0      97.0
色度,黑曾單位Color                                    ≤10        30
酸度(以H+計)Acidity,m mol/100g                         ≤0.05      0.1
堿度(以O(shè)H-計)Alkalinity,m mol/100g                     ≤0.03      0.06
灼燒殘渣(以硫酸鹽計)Ignition residue,%                 ≤0.001     0.005
氯化物(Cl)Chloride,%                                   ≤0.0001    0.001
硫酸鹽(SO4)Sulfate,%                                   ≤0.0005    0.001
銨(NH4)Ammonium,%                                      ≤0.0005    0.001
砷(As)Ansenic,%                                        ≤0.00005   0.0002
重金屬(以Pb計)Heavy metals,%                           ≤0.0001    0.0005
脂肪酸酯(以甘油三丁酯計)Aliphatic ester                ≤0.05      0.1
蔗糖和葡萄糖Cane sugar and glucose                       合格      合格
還原銀物質(zhì)Substances reducing silver                     合格      合格
硫酸試驗Substances darkened by sulfuric acid             合格      合格

ACS級
項目名稱Item                                           ACS Grade
含量(以體積計CH2OHCHOHCH2OH)Assay                      ≥99.5%
色度,黑曾單位Color(APHA)                              ≤10
灼燒殘渣Residue after ignition                         ≤0.005%
酸堿度試驗Neutrality                                   Passes test
氯化合物(Cl)Chloride compounds(as Cl)                  ≤0.003%
硫酸鹽(SO4)Sulfate                                     ≤0.001%
丙烯醛和葡萄糖Acrolein and glucose                     Passes test
脂肪酸酯(以丁酸計)Fatty acid esters(as butyric acid)   ≤0.05%
易炭化物質(zhì)Substances Darkened by sulfuric acid         Passes test
重金屬(以Pb計)Heavy metals(as Pb)                      ≤2ppm
水分(H2O)Water                                         ≤0.5%

項目                                                   分子生物學(xué)級
                                                (Molecular  biology grade)
砷Arsenic(%)                                            ≤0.0003
灰分Ash(%)                                              ≤0.01
DNA酶DNase                                              無
重金屬Heavy Metals (as Pb)(%)                           ≤0.0005
純度Purity (無水級)                                   ≥99.0%
Purity (Anhydrous)(%)                                   >99.0
RNA酶RNase                                              無
比重Specific Gravity                                    1.249-1.262
滅菌Sterility                                           合格


項目                                                   優(yōu)級純  
                                                        (GR)
純度Purity                                             ≥99.5%
折光率Refractive index n20/D                           ≥1.4731
水分water                                              ≤0.3%
酸堿度Fatty acids &esters (ml0.1N NaOH/25g)            ≤0.2
色澤colour Shade                                       ≤5 APHA
相對密度Specific gravity (20/20°C)                    ≥1.2623
酯esters (ml 0.1 N HCI/25g)                            ≥8.0
糖Sugars2                                              Negative
鹵化物Halogenated cpd(as CI)2                         ≤5 ppm
重金屬Heavy metals(as Pb)                              ≤1ppm
灰分Sulphates ppm                                      ≤0.01%


品級Grade                        USP級
Identification                 PASSES TEST
Specific gravity               ≤1.249 ,25°C
Color Test                     PASSES TEST
Residue on ignition            ≤ 0.01%
Chloride                       ≤0.001%
Sulfate                        ≤ 0.002%
Heavy Metals                   ≤ 5 PPM
Chlorine Compounds (AS CL)     ≤ 0.003%
Origanic Volatile              PASSES TEST
Fatty Acid Esters              ≤ 1 ML
H2O                            ≤ 5.0%  (KARL FISCHER TITRATION")
Total impurities               ≤ 1.0%
Individual impurities          ≤ 0.1%  
  (EXCLUDING DIETHYLENE GLYCOL GLYCOL & RELATED CMPDS INCLUDING DIETHYLENE GLYCOL)
Purity                         99.0% - 101.0% C3H8O3 (ANHYDROUS BASIS)

Storage:
密封保存。
用途  氣相色譜固定液(最高使用溫度75℃,溶劑為甲醇),分離分析低沸點含氧化物、胺類化合物、氮或氧雜環(huán)化合物,能完全分離3-甲基吡啶(沸點144.14℃)和4-甲基吡啶(沸點145.36℃)。適用于水溶液的分析。溶劑。
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