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DMSO in Paint Stripping products safe Gaylord Chemical

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DMSO in Paint Stripping products safe Gaylord Chemical Powered By Docstoc
					  DMSO in Paint Stripping products
                              A safe alternative to NMP




                          Gaylord Chemical


www.gaylordchemical.com
   Contents
   1. Introduction
         – Gaylord Chemical              3. Comparison to NMP-
           Corporation
                                            based products
                                           – Relative performance
   2. Product Basics                       – Safety
         – Physical                        – Regulatory aspects
           Properties
         – Safety and
           Handling
         – Product
           specification
         – Formulation!



Your Global Leader for DMSO Solutions!
   Gaylord Chemical Corporation

• Manufacturer of Dimethyl Sulfide, Dimethyl Sulfoxide, and
Dimethyl Sulfone
• Unique Industrial Process Utilizes Biorenewable Resources
• Reliable Producer of DMSO grades for electronic, industrial,
pharmaceutical, and healthcare applications since 1961




                                  Manufacturing facility in Bogalusa, Louisiana, USA.

Your Global Leader for DMSO Solutions!
  2. Dimethyl Sulfoxide Product Basics

Gaylord Chemical Corporation….

• ISO-9001:2000 Certified Manufacturing Facility
• Has extensive experience in shipping and handling of DMSO
• Supports new DMSO applications with a dedicated technical
service team and applications lab

•Can provide an extensive amount of safety and use data

•Offers DMSO in various product grades and packaging sizes
(bottles, 500 lb net wt. drums, bulk)


Your Global Leader for DMSO Solutions!
    Product Basics

     Simple Physical Properties                                                     Hansen Parameter Solvent Map
Molecular wt                    78.13                                                                      Methanol
                                                                                                                      Ethanol Amine
Boiling Point (760 mm Hg)   189 C (372 F)                      1 0

Melting Point               18.5 C (72 F)
                                                                                         IPA
Vapor Pressure (25C)        0.62 mm Hg                          8
                                                                                                     DMSO -     Highly Polar and Wide Solubility




                                            HYDROGEN BONDING
                                                                                                                          with Other Solvents
Flashpoint (TOC)            95 C (203 F)
                                                                                           Ethyl Lactate
                                                                                                                                 DMSO2
                                                                6                                             DMF
                                                                                    Butyl Carbitol

Features of DMSO:
                                                                                                     DMAC
                                                                                                                          DMSO
                                                                                    DBE          EEP

• Miscible with water                                           4
                                                                         Butyl Acetate
                                                                                               Acetone
                                                                                                      NMP
                                                                                         Methylene Chloride
• Low level of toxicity                                                        Ether            MEK
                                                                2                                                           Propylene Carbonate
• Powerful solvent for coatings and                                        Aromatic HC


   polymers                                                     0        Aliphatic HC

• Compatible with a wide range of                                    0          2          4           6              8          1 0     1 2       1 4


   Formulation ingredients                                                                      POLAR PARAMETER


• Biodegradable
Your Global Leader for DMSO Solutions!
  Safety Data
                    Acute toxicity                                   Chronic toxicity
 Oral LD50        Inhalation LC50 Dermal LD-50                 Oral LOEL          Oral NOEL
 (mg / kg)               (ppm)              (mg / kg)           (mg / kg)           (mg / kg)
   14,500-
   28,300           none @ 2900               40,000               8800               1100
 Data recorded for rats. Chronic studies occurred over 13 weeks. LOEL= Lowest Observed Effect
 Level NOEL= No Observed Effect Level


DMSO has a low level of acute and chronic toxicity. DMSO is not a
carcinogen (NTP, IARC), and is not a reproductive or developmental
toxin.
Gaylord Chemical Corporation provides extensive survey of toxicological and pharmacological data through
EPA High Production Volume Program (HPV) for Dimethyl Sulfoxide available on-line at:

http://www.epa.gov/chemtrk/dimthslf/c14721tc.htm

Your Global Leader for DMSO Solutions!
  Safety and Handling

  Hand Protection: Butyl rubber or nitrile gloves
  Storage: HDPE / HDPE, mild & 304, 316 Stainless Steel, Al
           6061-T6
  Gaskets/ Polymers: PFTE, Kalrez®




        For detailed information regarding materials of
        construction, storage conditions, piping, and
        unloading conditions, refer to Gaylord Bulletin
        107 (available from www.gaylordchemical.com)



Your Global Leader for DMSO Solutions!
 Formulation!                            Cosolvents for DMSO stripping products


Dibasic Esters (DBE, DME): ↑safe, miscible ↓solvent strength
P-series glycol ethers: (DPM, TPM)↑solvent power, miscible ↓cost
AR-100,150,200: ↑cost ↓’moth ball’ smell
Ethyl lactate: ↑safety ↓solvent strength
D-limonene / citrus terpenes: ↑smell ↓DMSO solubility
t-butyl acetate: ↑VOC content ↓flashpoint

Water: ↓negative affect on stripping performance
Propylene carbonate: (Jeffsol) ↑safe, miscible ↓solvent strength
Oxsol? ↑VOC content, solvent strength ↓safety, availability
Benzyl alcohol?

Your Global Leader for DMSO Solutions!
Formulation!                       additives for DMSO stripping products



   •    Viscosity modification: Methocel OS, Klucel H, Carbopol 934
   •    Activators: Monoethanolamine (MEA), triethanolamine (acids,
        peroxides not recommended)
   •    Inhibitors: Cobratec 928 (copper, zinc at lower pH), Alox
        products (mild steel, low pH)
   •    Fragrance: pine oil, limonene, citrus oil
   •    Surfactants nonionics: Igepal OD-410 (Rhodia), Triton (Dow),
        Ethomeens (Akzo Nobel), Ninol (Stepan)




Your Global Leader for DMSO Solutions!
   Formulation!                           sample formulation



                                         Sample Formulation
      Raw Material                 Amount
                                                       Preparation: Ethanolamine and DMSO are
      DMSO                         38-44%
                                                       combined at room temperature, and
      AR-I50ND®                    15-23%              Methocel® 311 is added with stirring. As the
                                                       mixture thickens, DBE, EEP and AR150 are
      DBE®                         19-30%
                                                       added sequentially. Rhodasurf® DA-630 is
      EEP                          8-17%               added last; Final product has a viscosity of
                                                       ~7000 cps. Package in HDPE.
      Methocel® 311                1%

      Ethanolamine                 0.5%

      Rhodasurf® DA-630            0.5%


                                    AR-150ND® is a product of the ExxonMobil Corporation.
                                    DBE® (dibasic ester blends) are products of DuPont. Monsanto markets a similar product
                                    line (DME® blends)
                                    EEP (3-ethoxyethylpropionate) is produced by Eastman Chemical Company
                                    Methocel® thickeners are produced by Dow Chemical.
                                    RhodaSurf ® DA-630 is a product of Rhodia.


Your Global Leader for DMSO Solutions!
   Relative Performance

 • DMSO and NMP-based products perform similarly on
   paints
 • Both require 2-3 times as long to work than MC-
   based products
 • DMSO-based products are especially effective at
   stain/varnish removal
 • Formulation considerations nearly identical for DMSO
   & NMP




Your Global Leader for DMSO Solutions!
   Relative Safety

                     Acute Toxicity
                 (mg / kg, rat)
                   Oral LD50             Dermal
   DMSO         14,500-28300             40,000
   NMP                 3914               8000


 •NMP is a suspect reproductive hazard.
 •DMSO has a low level of acute and chronic toxicity.
 DMSO is not a carcinogen (NTP, IARC), and is not a
 reproductive or developmental toxin.
Your Global Leader for DMSO Solutions!
   Regulatory Aspects

   Reporting/Labeling Requirements

   •    SARA III: NMP is section 13 listed; DMSO is not.

   •    California Proposition 65 labelling: NMP is listed; DMSO is not.


       Prop 65 Warning label for NMP-containing products:

       WARNING:
       THIS PRODUCT CONTAINS A CHEMICAL(S)
       KNOWN TO THE STATE OF CALIFORNIA TO
       CAUSE BIRTH DEFECTS OR OTHER
       REPRODUCTIVE HARM

Your Global Leader for DMSO Solutions!
   4. ‘Take-Home’ Message.


  • DMSO is an effective and safe
    replacement for NMP
  • Gaylord Chemical can help you
    formulate DMSO-based stripping
    products



Your Global Leader for DMSO Solutions!
 For More information, please contact:


Bob Strub
bstrub@gaylordchem.com                   Gaylord Chemical Company LLC
                                         106 Galeria Blvd
                                         Slidell, LA 70458
or:
                                         USA
Artie McKim                              +001 (985) 732-6308

amckim@gaylordchem.com



Your Global Leader for DMSO Solutions!

				
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posted:5/5/2013
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