Glycerol

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	现货
Glycerol	＞99.0%	500ml	RMB 330	现货
Glycerol	Natural, USP, EP, BP, JP 级	4L	RMB 902	Consulting service
Glycerol	分子生物学级，无菌	100g	RMB 423.5	Consulting service
Glycerol	EP, BP, JP, USP级	250Kg	RMB 9020	Consulting service
Glycerol	EP, BP, JP, USP级	500ML	RMB 85.8	Consulting service
Glycerol	分析标准品	1Mg	RMB 528	现货
Glycerol	分子生物学级	1L	RMB 528	Consulting service
Glycerol	分子生物学级	250ML	RMB 181.5	Consulting service
Glycerol	色谱固定液	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	促销

Character：
澄清、粘稠液体无臭，溶于水、醇，不溶于醚、苯、三氯甲烷及二硫化碳，于空气中易吸收水分。有暖甜味。能从空气中吸收潮气，也能吸收硫化氢、氰化氢和二氧化硫。对石蕊呈中性。长期放在0℃的低温处，能形成熔点为 17.8℃有光泽的斜方晶体。遇强氧化剂如三氧化铬、氯酸钾、高锰酸钾能引起燃烧和爆炸。能与水、乙醇任意混溶，1份本品能溶于11份乙酸乙酯，约500 份乙醚，不溶于氯仿、四氯化碳、石油醚和油类。半数致死量(大鼠，经口)>20ml/kg。有刺激性。
密度：1.25
熔点：17.8℃
沸点：182 °C/20 mmHg
闪点：176℃
折光率n20/D：1.4746

Quality Standard：
   GB/T 687-94
项目Item                                               分析纯     化学纯
                                                       (AR)        (CP)
含量(C3H8O)Assay,%                                     ≥99.0      97.0
色度，黑曾单位Color                                    ≤10        30
酸度(以H+计)Acidity,m mol/100g                         ≤0.05      0.1
碱度(以OH-计)Alkalinity,m mol/100g                     ≤0.03      0.06
灼烧残渣(以硫酸盐计)Ignition residue,%                 ≤0.001     0.005
氯化物(Cl)Chloride,%                                   ≤0.0001    0.001
硫酸盐(SO4)Sulfate,%                                   ≤0.0005    0.001
铵(NH4)Ammonium,%                                      ≤0.0005    0.001
砷(As)Ansenic,%                                        ≤0.00005   0.0002
重金属(以Pb计)Heavy metals,%                           ≤0.0001    0.0005
脂肪酸酯(以甘油三丁酯计)Aliphatic ester                ≤0.05      0.1
蔗糖和葡萄糖Cane sugar and glucose                       合格      合格
还原银物质Substances reducing silver                     合格      合格
硫酸试验Substances darkened by sulfuric acid             合格      合格

ACS级
项目名称Item                                           ACS Grade
含量(以体积计CH2OHCHOHCH2OH)Assay                      ≥99.5%
色度，黑曾单位Color(APHA)                              ≤10
灼烧残渣Residue after ignition                         ≤0.005%
酸碱度试验Neutrality                                   Passes test
氯化合物(Cl)Chloride compounds(as Cl)                  ≤0.003%
硫酸盐(SO4)Sulfate                                     ≤0.001%
丙烯醛和葡萄糖Acrolein and glucose                     Passes test
脂肪酸酯(以丁酸计)Fatty acid esters(as butyric acid)   ≤0.05%
易炭化物质Substances Darkened by sulfuric acid         Passes test
重金属(以Pb计)Heavy metals(as Pb)                      ≤2ppm
水分(H2O)Water                                         ≤0.5%

项目                                                   分子生物学级
                                                （Molecular  biology grade)
砷Arsenic(%)                                            ≤0.0003
灰分Ash(%)                                              ≤0.01
DNA酶DNase                                              无
重金属Heavy Metals (as Pb)(%)                           ≤0.0005
纯度Purity （无水级）                                   ≥99.0%
Purity (Anhydrous)(%)                                   ＞99.0
RNA酶RNase                                              无
比重Specific Gravity                                    1.249-1.262
灭菌Sterility                                           合格

项目                                                   优级纯  
                                                        (GR)
纯度Purity                                             ≥99.5%
折光率Refractive index n20/D                           ≥1.4731
水分water                                              ≤0.3%
酸碱度Fatty acids &esters (ml0.1N NaOH/25g)            ≤0.2
色泽colour Shade                                       ≤5 APHA
相对密度Specific gravity (20/20°C)                    ≥1.2623
酯esters (ml 0.1 N HCI/25g)                            ≥8.0
糖Sugars2                                              Negative
卤化物Halogenated cpd(as CI)2 　                       ≤5 ppm
重金属Heavy metals(as Pb)                              ≤1ppm
灰分Sulphates ppm                                      ≤0.01%

品级Grade                        USP级
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  气相色谱固定液(最高使用温度75℃，溶剂为甲醇)，分离分析低沸点含氧化物、胺类化合物、氮或氧杂环化合物，能完全分离3-甲基吡啶(沸点144.14℃)和4-甲基吡啶(沸点145.36℃)。适用于水溶液的分析。溶剂。