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Dipentaerythritol

CAS No.126-58-9
Chemical Name:Dipentaerythritol
CBNumber:CB4494074
Molecular Formula:C10H22O7
Formula Weight:254.28
MOL File:126-58-9.mol

Dipentaerythritol Property

Melting point 215-218 °C (lit.)
Boiling point 356°C
Density 1.36 g/cm3 (20℃)
bulk density 400-450kg/m3
vapor pressure <0.00001 hPa (20 °C)
refractive index 1.4455 (estimate)
storage temp. Store below +30°C.
solubility 2.4g/l
form Crystalline Powder
pka 13.38±0.10(Predicted)
color White
PH 5 (2g/l, H2O, 20℃)
Water Solubility 0.29 g/100 mL (20 ºC)
Sensitive Hygroscopic
InChIKey TXBCBTDQIULDIA-UHFFFAOYSA-N
LogP 1.8 at 23℃
CAS DataBase Reference 126-58-9(CAS DataBase Reference)
Indirect Additives used in Food Contact Substances DIPENTAERYTHRITOL
FDA 21 CFR 175.105
FDA UNII 6699UJQ478
NIST Chemistry Reference 1,3-Propanediol, 2,2'-[oxybis(methylene)]bis[2-(hydroxymethyl)-(126-58-9)
EPA Substance Registry System Dipentaerythritol (126-58-9)
UNSPSC Code 12352104
NACRES NA.22

Safety

Safety Statements :24/25
WGK Germany :1
Autoignition Temperature :370 °C
TSCA :Yes
HS Code :29094919
Hazardous Substances Data :126-58-9(Hazardous Substances Data)
Toxicity :LD50 orally in Rabbit: > 2000 mg/kg

NFPA 704:

	0
1		0

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal wordWarning
Hazard statements H315-H319-H335
Precautionary statements P261-P305+P351+P338

Dipentaerythritol Price More Price(6)

Brand: Sigma-Aldrich(India)
Product number: 8.14810
Product name : Dipentaerythritol
Purity: for synthesis
Packaging: 25G
Price: ₹2320
Updated: 2022/06/14
Buy: Buy

Brand: Sigma-Aldrich(India)
Product number: 8.14810
Product name : Dipentaerythritol
Purity: for synthesis
Packaging: 100G
Price: ₹3140
Updated: 2022/06/14
Buy: Buy

Brand: Sigma-Aldrich(India)
Product number: D203203
Product name : Dipentaerythritol
Purity: technical grade
Packaging: 500G
Price: ₹3821.23
Updated: 2022/06/14
Buy: Buy

Brand: Sigma-Aldrich(India)
Product number: 8.14810
Product name : Dipentaerythritol
Purity: for synthesis
Packaging: 500G
Price: ₹6590
Updated: 2022/06/14
Buy: Buy

Brand: TCI Chemicals (India)
Product number: D1342
Product name : Dipentaerythritol
Purity: min. 80.0 %
Packaging: 25G
Price: ₹1800
Updated: 2022/05/26
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Dipentaerythritol Chemical Properties,Usage,Production

Description Dipentaerythritol, also known as 2,2-[oxybis(methylene)- bis[2-hydroxymethyl]-1,3-propanediol, is a byproduct of pentaerythritol production. Because of its low solubility in water (0.22 g/ 100 g H2O at 20 ℃ and 10.0 g/100 g H2O at 100 ℃) it can be separated from pentaerythritol by fractional crystallization. The yield can be increased by changing the ratio of formaldehyde/ acetaldehyde towards stoichiometric. Adding pentaerythritol before starting the reaction also increases the yield. An effective method is to use acrolein instead of acetaldehyde. Dipentaerythritol can be produced intentionally from pentaerythritol by acid catalysis. Dipentaerythritol is purified as a coproduct by many pentaerythritol producers.
Chemical Properties white crystalline powder
Uses 2,2''-(Oxybis(methylene))bis(2-(hydroxymethyl)-propane-1,3-diol) is used in preparation of new type of explosion-proof and flame-retardant tape material for cables.
Application PVC stabilizers based on calcium – zinc carboxylates use micronized dipentaerythritol as costabilizer to improve the thermal stability of PVC during processing. This system grows fast in economic significance at the expense of leadbased stabilizers due to environmental reasons. Micronized dipentaerythritol is also used in intumescent paints. Synthetic lubricants are another important application for dipentaerythritol. The C5 – C10 esters are used as lubricants in jet engines and refrigerators. Rosin esters made from dipentaerythritol have a higher softening point than rosin esters from pentaerythritol.
Application Dipentaerythritol (DPE) is an attractive raw material used for the production of polyesters, polyethers, polyurethanes, alkyd resins, photosensitive resin film. DPE is also employed in a wide range synthesis of specialty chemicals such as lubricants, coatings, adhesives, plasticizers and cosmetics.
Preparation Dipentaerythritol is obtained as a byproduct in the manufacture of pentaerythritol; it is separated by fractional distillation.

Dipentaerythritol (DPE) has been prepared from a slurry of Pentaerythritol (PE) in sulfolane catalyzed by a low amount of sulfuric acid and was isolated with 16% yield (72% GPC purity) and 57% isolated selectivity.
synthesis of dipentaerythritol from pentaerythritol under acidic conditions
Flammability and Explosibility Not classified