Chemical name

                   1,3-Diphenyl guanidine

Classification

                   Guanidines Accelerator

Molecular formula

                   C13H13N3

CAS No.

                   102-06-7

Specification

Item

Unit

                           Index

 Test Method

Physical Form

 — —

Powder

     Oil powder

Granule

      Visual

Appearance

 — —

White or Grey white

      Visual

Purity

% min.

97

HG/T2342-2010

Initial M.P.

°C min.

     144.0

     144.0

144.0

HG/T2342-2010

Loss on drying

% max.

     0.30

     0.50

0.30

HG/T2342-2010

Ash content

% max.

     0.40

     0.30

0.30

HG/T2342-2010

Residue on 100 mesh sieve

% max.

     0.10

     0.10

— —

HG/T2342-2010

Oil content

  %

     — —

     1~2

— —

HG/T2342-2010

Application

DPG can be used for NR, IR, SBRr NBR and CR. Very useful basic accelerator that can be used in combination with acidic accelerators, very seldom used alone. It can be used with MBT, MBTS, CBS, MOR, TMTD, TETD, TMTM,ZDMC, ZDEC, ZDBC, ZEPC and others. Used as secondary accelerator with thiazoles and sulphenamides in NR and SBR compounds, giving good physical properties. Better storage stability compared to thiurams and dithiocarba-mates, but not as active. As it has a bitter taste, it cannot be used for products in contact for foodstuff.

Storage

To keep the bags tightly closed in a cool, well-ventilated place. And to avoid from moisture, sunshine, light and fires. The recommended max.shelf life is two years.

Package

25kg paper bag or PP weaved bag lined with plastic bag. Or to pack asrequired.