Product Name

  • Name

    Polyoxyethylene sorbitan monopalmitate

  • EINECS
  • CAS No. 9005-66-7
  • Density 1.083 g/mL at 25 °C(lit.)
  • Solubility 100 g/L
  • Melting Point 0.1 °C
  • Formula Unspecified
  • Boiling Point 797.89°C (rough estimate)
  • Molecular Weight 338.26472
  • Flash Point >230 °F
  • Transport Information
  • Appearance
  • Safety 24/25
  • Risk Codes
  • Molecular Structure Molecular Structure of 9005-66-7 (Polyoxyethylene sorbitan monopalmitate)
  • Hazard Symbols
  • Synonyms Sorbitan,monopalmitate, polyoxyethylene derivs. (8CI);Crill 7;Crillet 2;Durfax 60;E434;Emsorb 6910;Emulgen TWP 120;Ethoxylated sorbitan monopalmitate;Glycosperse P 20;Lonzest SMP 20;MP 55F;Montanox 40;Nikkol TP 10;NissanNonion PT 221;Polysorbate 40;Rheodol Super TW-P 120;Rheodol TW-P 120;Rheodol TW-P 120V;Sorbimacrogolpalmitate 300;Sorbon T 40;TP 10EX;Tween 16:0;Tween 40;
  • PSA 133.14000
  • LogP 3.55880

Polyoxyethylene sorbitan monopalmitate Chemical Properties

The Molecular formula of POLYOXYETHYLENE SORBITAN MONO-PALMITATE(9005-66-7): C22H42O6.(C2H4O)n
The Molecular Weight of POLYOXYETHYLENE SORBITAN MONO-PALMITATE(9005-66-7):
The Molecular Structure of POLYOXYETHYLENE SORBITAN MONO-PALMITATE(9005-66-7) is:
Density:1.083 g/mL at 25 °C(lit.)
Melting point:0.1 °C  
Solubility in water:100 g/L
refractive index:n20/D 1.47(lit.) 
Appearance:Yellow to amber liquid  
Synonyms:POLYSORBATE 40;POLYOXYETHYLENE SORBITAN MONOPALMITATE;POLYOXYETHYLENE GLYCOL SORBITAN MONOPALMITATE;POLYOXYETHYLENE (20) SORBITAN MONOPALMITATE;TWEEN NO 40;TWEEN(R) 40;crill7;TWEEN 40

Polyoxyethylene sorbitan monopalmitate Toxicity Data With Reference

1.   

ivn-rat LD50:1580 mg/kg

   FAONAU    Food and Agriculture Organization of United Nations, Report Series. 53A (1974),257.
RTECS#: CAS# 9005-66-7: WG2933000 
 LD50/LC50: RTECS:
CAS# 9005-66-7: Oral, rat: LD50 = >38400 mg/kg;
Carcinogenicity: Tween® 40 - Not listed as a carcinogen by ACGIH, IARC, NTP, or CA Prop 65.

Polyoxyethylene sorbitan monopalmitate Consensus Reports

Reported in EPA TSCA Inventory.

Polyoxyethylene sorbitan monopalmitate Safety Profile

Moderately toxic by intravenous route. When heated to decomposition it emits acrid smoke and irritating fumes.
Safety Description
S24/25:Avoid contact with skin and eyes.  

Polyoxyethylene sorbitan monopalmitate Specification

Chemical Stability: Not available 
Conditions to Avoid: Incompatible materials. 
Incompatibilities with Other Materials: Strong oxidizing agents. 
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide. 
Hazardous Polymerization: Will not occur. 

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