Description
METHANOL TECHNICAL GRADE A
Reference document
GOST ******5
chemical formula
SN3OH
Number of the substance in the CAS Registry
******1
Common synonyms
Methyl alcohol , wood alcohol , carbinol metilgidrat hydroxide
bromide
codes:
Customs number ***5 *1 ***0
GNG *******0
ETSNG **1,**4
UN number ***0
sphere of application
Raw methanol is widely used in the gas industry in order to combat
and prevent hydrate formation in gas production and transportation
of natural and associated gas for the testing of new wells and
boreholes renovated and partly for the dehydration of natural
gas.
In the chemical industry methanol is used as the precursor . In the
largest amount of methanol used to obtain formaldehyde , acetic
acid , a synthetic rubber , as well as the methylating agent in the
manufacture of dimethyl terephthalate , methylamine , methyl
methacrylate , pentaerythritol, hexamine . A large amount of
methanol consumed for various chemicals such chlorophos , malathion
, methyl chloride and methyl bromide , dimethyl sulphate , vinyl
methyl ether , dimethylaniline dimetilhlortiofosfata , methyl
mercaptan .
Methanol is used in the production of film , amines, polyvinyl
chloride , urea and ion exchange resins , dyestuffs and
intermediates, the solvent in the paint industry.
In the oil refining industry methanol serves as a selective solvent
to clean gasoline from mercaptans and azeotropic agent in the
allocation of toluene distillation. In a mixture of methanol and
ethylene glycol is used for toluene extraction of gasoline.
Methanol has a high octane number and can be used as part of a
motor fuel
MAIN PRODUCT CHARACTERISTICS
Methanol is one of the most important organic products, the
simplest representative of the limit of monohydric alcohols.
Methanol is miscible in all respects to water and many organic
liquids , but is not miscible with aliphatic hydrocarbons. It
absorbs water vapor , carbon dioxide and some other substances
appearance
Colorless transparent liquid without insoluble impurities
The main physical and chemical properties
Number Norm
1. Appearance Colorless transparent liquid without insoluble
impurities
2 . The molecular weight of *2.*4
3 . Density at *0 ° C , g/cm3 0,****0,**2
4 . MPC in industrial premises , mg/m3 5,0
technical characteristics
Number Norm
Grade A Grade B
1. Appearance Colorless transparent liquid without insoluble
impurities
2 . Density at *0 ° C , g/cm3 0,****0,**2
3 . Mass fraction of water,%, max 0.*5 0.*8
4 . Miscible with water mixed with water without traces of
turbidity and opalescence
5 . Temperature limits :
A) limit the boil, C
B) *9 % of the product distils in the range C , not more than
*4,***5,5
0.8 1.0
6. Mass fraction of free acid in formic acid,% , not more than
0.***5
7. Mass fraction of aldehydes and ketones based on acetone, %, not
more than 0,**3 0,**8
8. Mass fraction of volatile iron compounds based on iron ,%, max
0.***1 0.***5
9. Test with potassium permanganate , min, at least *0 *0
*0 . Mass fraction of ammonia and amino compounds based on
ammonia,% , not more than 0.****1 -
*1. Content of chlorine ,%, no more than 0.***1 0.**1
*2. Sulphur content, %, not more than 0.***1 0.**1
*3. Mass fraction of non-volatile residue after evaporation ,%, not
more than 0.*1 0.**2
*4. Electrical conductivity , S / m , not more than 3 * ***5 -
*5. Mass fraction etilogovogo alcohol,% , not more than 0.*1 -
*6. Colour, Pt - Co scale , Hazen units , no more than 5 -
Packaging and Storage
Methanol is poured into special railway tanks without bottom drain
device , trucks, steel barrels with a capacity of **0 dm3 according
to GOST ****0 .
Methanol is not allowed to fill in galvanized containers .
Requirements for packaging - in accordance with GOST ****9 .
Methanol is stored in compliance with the rules governing the
storage of flammable and toxic liquids and in accordance with the
"General sanitary rules when working with methanol "
transportation
Methanol is transported by all modes of transport in accordance
with the rules of carriage of goods, operating in this mode of
transport .
Transportation methanol rail roads should be carried out only in
tank-wagons , in barrels - by road
Product safety information
Methanol - a particularly dangerous flammable liquid . Flash Point
6C . Ignition temperature of *3 oC. Auto-ignition temperature of
**0 ° C
Methanol - a poison that acts on the nervous and cardiovascular
systems . Toxic effect of methanol due to the so -called " lethal
synthesis" - the metabolic oxidation in the body to a highly toxic
formaldehyde.
Ingestion (***0) ml of methanol leads to severe poisoning ( one of
the consequences - blindness) , and *0 grams or more - death.
Maximum allowable concentration of methanol in the air is equal to
1 mg / m ³ ( in isopropyl alcohol 0,6 mg / m³, with ethanol - 5 mg
/ m³,
Special hazards of methanol due to the fact that the smell and
taste of it is indistinguishable from ethyl alcohol , which is why
there are cases and its ingestion . Known annual events such as the
mass and the unit of methanol poisoning .
Guaranteed shelf life
Guaranteed shelf life Technical methanol - six months from the date
of manufacture
