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1,2-Propanediol

Cas:
57-55-6
MDL:
MFCD00064272
Molecular Formula:
C3H8O2
Molecular Weight:
76.09
Alias:
1,2-二羥基丙烷, 甲基乙二醇,丙二醇
Product order:
Name Specifications Packing Price Delivery
1,2-Propanediol AR 200kg RMB 8690 Consulting service
1,2-Propanediol AR 25kg RMB 1078 Consulting service
1,2-Propanediol 分析標(biāo)準(zhǔn)品 250mg RMB 308 Consulting service
1,2-Propanediol ACS 500ml RMB 71.5 Consulting service
1,2-Propanediol GR 500ml RMB 52.8 Consulting service
1,2-Propanediol CP 500ml RMB 47.3 Consulting service
1,2-Propanediol AR 500ml RMB 60.5 Consulting service
Character:
無(wú)色粘稠液體。微有辛辣味。易吸濕,在正常情況下穩(wěn)定,但在高溫時(shí)易生成丙醛、乳酸、丙酮酸和乙酸。能與水、丙酮和氯仿混溶,溶于醚。半數(shù)致死量(大鼠,經(jīng)口)25ml/kg。
Quality Standard:
Q/(HG)SJ 560-91
項(xiàng) 目Item                                       分析純       化學(xué)純
                                                 (AR)         (CP)
沸程Boiling range,℃                          186.0-188.0  186.0-188.0
密度(20℃)Density,g/mL                        1.036-1.039  1.035-1.039
折光率,(nD25)                                1.432-1.434  1.432-1.434
與水混合試驗(yàn)Miscibility with water               合格         合格
灼燒殘?jiān)?以硫酸鹽計(jì))Ignition residue,%         ≤0.005        0.01
水份(H2O)Water,%                               ≤0.2           --
游離酸Free acids,%                             ≤0.003        0.006
氧化物Oxide                                      合格         合格
氯化物(Cl)Chloride,%                           ≤0.001        0.002
硫酸鹽(SO4)Sulfate,%                           ≤0.001        0.002
重金屬(以Pb計(jì))Heavy metals,%                   ≤0.0003       0.0005

ACS級(jí)
項(xiàng)目名稱(chēng)Item                                  ACS Grade
含量(CH3CHOHCH2OH)Assay                        ≥99.5%
色度,黑曾單位Color(APHA)                      ≤10
灼燒殘?jiān)黂esidue after ignition                 ≤0.005%
可滴定酸Titrable acid                          ≤0.0005meq/g
氯化物(Cl)Chloride(Cl)                         ≤1ppm
水分(H2O)Water                                 ≤0.2%

Storage:
密封保存。
用途  溶劑, 有機(jī)合成, 抗凍劑, 增塑劑, 殺菌劑。氣相色譜分析標(biāo)準(zhǔn)。氣相色譜固定液(最高使用溫度150℃,溶劑為氯仿),分離分析醇、酯和酮等。
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