◆industrial chemical items(1) ◆industrial chemical items(2)
（1）Thiopropionic acid (TDPA)
CAS-NO : 111-17-1
Chemical name : 3,3-Thiodipropionic acid
Trade name : TDPA
Molecular formula : C6H10O4S
Structural formula :
Molecular weight : 178.20
Physiochemical properties : white granular powder, nontoxic, flammable,
melting point : 131-133°C. Soluble in water.
Specification :
Item |
Specification |
Testing method |
Appearance |
White granular powder |
QB/YZWY-02 |
Color of solution(Pt-Co#) |
≤40 |
QB/YZWY-02 |
Melting point |
128~134 |
QB/YZWY-02 |
Acid number(mgKOH/g) |
623~630 |
QB/YZWY-02 |
Ash content(wt%) |
≤0.3 |
QB/YZWY-02 |
Iron content(mg/Kg) |
≤10.0 |
QB/YZWY-02 |
Sulfate content(wt%) |
≤0.3 |
QB/YZWY-02 |
Ammonium content(wt%) |
≤0.03 |
QB/YZWY-02 |
Heating loss(wt%) |
≤0.4 |
QB/YZWY-02 |
Purity(wt%) |
≥99.0 |
QB/YZWY-02 |
Packing, preservation and transportation : cardboard drum with plastic film lining,NW:20kg. Stored in cool and dry place.
Use:Chemical intermediates
（2）Dioctadecyl 3,3'-thiodipropionate (DSTDP)
CAS-NO : 693-36-7
Chemical name : dioctadecyl 3,3'-thiodipropionate
Trade name : DSTDP
Molecular formula : S(C2H4COO C18H37)2
Molecular weight : 683.18
Physiochemical properties : White granular powder,nontoxic, flammable; specific gravity:(d)1.027, Soluble in organic substance including acetone, petroleum and benzene, slightly soluble in water.
Specification :
Item |
Index |
Appearance |
White granular powder |
Melting point(oC) |
63.5-68.5 |
Melting color(Pt-Co#) |
≤60 |
Ash content(wt%) |
≤0.01 |
Acid number(mgKOH/g) |
≤0.05 |
Heating loss(wt%) |
≤0.05 |
Saponification value(mgKOH/g) |
160-170 |
Packing, preservation and transportation : Cardboard drum with plastic lining, NW:20kg. Stored in dry, cool and draugty place.
Use : As co-antioxidant in synthetic resin production, used together with antioxidant to generate synergetic effect and improve processing properties.
（3）Dydecyl thiopropionate (DLTDP)
CAS-NO : 123-28-4
Chemical name : Dydecyl thiopropionate
Trade name : DLTP
Molecular formula : C30H58O4S
Structural formula :
Molecular weight : 514.824
Physiochemical properties : White granular powder,nontoxic, flammable, melting point:40°C, specific gravity:(d)0.975. Soluble in organic substance including acetone, petroleum and benzene, slightly soluble in water.
Specification :
Index name |
Specification |
Appearance |
White granular powder |
Crystallization point(°C) |
39.5-42.0 |
Melting color(Pt-40) |
≤60 |
Ash content(wt%) |
≤0.01 |
Iron content(*10-6) |
≤3 |
Acid number(mgKOH/g) |
≤0.05 |
Volatiles(wt%) |
≤0.05 |
Sieving less than 10 mesh(wt%) |
100 |
Less than 16 mesh(wt%) |
≥95 |
Packing, preservation and transportation : Cardboard drum with plastic lining, NW:20kg. Stored in dry, cool and draugty place.
Use : As co-antioxidant in polyethylene production, used together with antioxidant to generate synergetic effect and improve processing properties. （4）2,6-Dinitro-4-methylphenol (DNPC)
Product name : 2,6-Dinitro-4-methylphenol
Trade name : DNPC
Molecular formula : C7H6N2O5
Structural formula :
Molecular weight : 198.13
Properties : yellow or light brown crystal,solubility in 20°C water:0.04 % (W/W),soluble in organic solvents including benzene, ethyl benzene, ethanol etc..
Specification :
Item |
Medical grade |
Industrial grade |
Testing method |
Appearance |
Yellow crystal |
Yellow or light brown crystal |
QB/YZWY-02 |
Content(wt%) |
≥99.0 |
≥98.0 |
QB/YZWY-02 |
Water content(wt%) |
1-2 |
1-2 |
QB/YZWY-02 |
Insolubles in benzene(wt%) |
≤0.05 |
≤0.5 |
QB/YZWY-02 |
Melting point : |
80.0-81.5 |
78.5-80.5 |
QB/YZWY-02 |
Use : Widely used to distillate aromatic compounds of ethylene type; avoid the generation of monomer autopolymer. Besides, it can be used in pesticide, weedicide and coating. It is also intermediates for synthesizing some chemicals.
Storage : Stored in dry, cool place. Avoid fire, moisture.
Transportation : on the clients' requirements.
Packing : plywood drum with plastic lining, NW: 25kg. |
