Cồn tuyệt đối - C2H5OH - AR - 500ml - Hóa chất tinh khiết TQ

Cồn tuyệt đối
C2H5OH
AR 500ml
Hóa chất tinh khiết TQhttp://vietnamchemtech.com.vn/chitietSP.asp?id_pro=235
Ethanol absolute

C₂H₆O

Methylcarbinol, Spirit, Spirit of wine

CAS-No. 64-17-5 EC-No. 200-578-6 HS-No. 2207100000 

M = 46.07g/mol Spec. density 0.790-0.793 g/cm³(20 °C)

Ignition temp. 425 °C Flash point 12 °Cc.c.

Melting point -114.5 °C

Boiling point 78.3 °C

 R 11 S 7-16 UN 1170   DG:3,II     *Quarantine

Ethanol absolute  AR

Specification  GB/T 678-2002

Assay

>=99.7%

Density(20°C),g/ml

0.789~0.791

Solubility in water

Pass

Evaporation residue

<=0.001%

Water(H₂O)

<=0.3%

Acidity(as H⁺), mmol/100g

<=0.04

Alkalinity(as OH^-), mmol/100g

<=0.01

Methanol(CH₃OH)

<=0.05%

iso-Propanol((CH₃)₂CHOH)

<=0.01%

Carbonyl compounds(as CO)

<=0.003%

Substances reducing potassium permanganate(as O)

<=0.00025%

Readily carbonizable substances