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PENTAERYTHRITOL
EINECS NO.: 204-104-9
FORMULA: C(CH2OH)4
MOL WT.: 136.15
H.S. CODE: 2905.42
TOXICITY: Oral, rat LD50: 19500 mg/kg
RAW MATERIALS CLASSIFICATION: Formaldehyde , Acetaldehyde;
PENTAERYTHRITOL (also called Tetramethylolmethane) is a polyalcohol compound containing 4 esterficable hydroxyl groups, which favor its own fuctions. It is a white crystalline odorless solid moderately soluble in cold water, freely soluble in hot water. It is used to make the explosive pentaerythritol tetranitrate (PETN) and in the manufacture of alkyol resins and other coating compounds. It is produced from formaldehyde and acetaldehyde. There are commercially three grades of pentaerythritol: mono ( 98 percent, with di- and tripentaerythritol impurities), technical (88 percent, with 8 to 10 percent dipentaerythritol, balance tri-) and nitration (99 percent, with di- and tripentaerythritol impurities).
PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE: White crystalline odorless solid
MELTING POINT 255 - 259 C
BOLING POINT: 276 C
SPECIFIC GRAVITY : 1.396
AUTOIGNITION : 490 C
FLASH POINT: 240 C
STABILITY: Stable under ordinary conditions
APPLICATIONS:
Pentaerythritol is used in the manufacture of Alkyd resins, fatty acid rosin and tall oil esters and to make paint and coatings, printing ink, coating adhesives, explosives, sealants, varnish, lacquer, vinyl chloride, synthetic rubber and miscellaneous including pentaerythritol tetranitrate (PETN), urethane coatings, flame retardant paints, polyvinyl chloride stabilizers, olefins antioxidant and pentaerythritol triacrylate.
SALES SPECIFICATION
MONOPENTAERYTHRITOL GRADE
APPEARANCE: White crystalline odorless solid
MONOPENTAERYTHRITOL: 98.0% min
DI & TRIPENTAERYTHRITOL: 2.0% max
HYDROXYL GROUPS : 48.5% min
MOISTURE: 0.5% max
ASH: 0.03% max
PHTHALIC COLOR: 2 max (Gardner)
MELTING POINT: 253 C min
TRANSPORTATION
PACKING 20kgs, 500kgs in Bag
HAZARD CLASS
UN NO.
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