Defoaming agent XP-187 for use in sea water drilling fluid Specifications : Project Index The external outlook Easy flow of liquid Water dispersion Milky liquid Density （ g/cm 3 ） 0.90~1.10.

Serial number Project Index 1 Appearance A colorless or slightly yellow liquid 2 The pH value (2% aqueous solution) 7.0 ～ 10.0.

Project Index Appearance The black solid powder.

Table 1 the physical and chemical performance index Project Index Water content 8.5%. Water insoluble matter 2.5% .

Project Index Appearance White or slightly yellow soil powder Moisture 10 Potential mV 10 Sieve residue (0.25mm in diameter) 5 Acid dissolution.

Project Index Appearance The black solid powder Moisture 15.0 %.The pH value 7 ～ 9 Fineness (0.45mm sieve residue) 10.0% Medium.

1. Appearance Viscous liquid 2. The value of pH 7.0 ～ 9.0. 3. The cloud point 30.0℃ .

Physical and chemical performance index Project Index Appearance Volatile black wet powder.

Physical and chemical performance index Project index Appearance Black powder Volatile 10%. Fineness (20 mesh sieve residue) 10%.

1. Appearance Viscous liquid. 2. Density ， 3 1.00 ～ 1.14g/cm. 3. Fluorescence level 5.0.

1. Appearance :thick emulsion. 2. Intrinsic viscosity number 10dl/g . 3. Solid phase volume 28.0% .

Appearance Brown black powder.