Thiourea Dioxide, TDO, TUD Purity: 99.0% min Cas no.: 1758-73-2 Reducing agent used in ... 26.7g/l (20 degrees centigrade), while its PH is 5.0 in saturated solution. TDO appears terrific stable even in 20 ... .2Specific Gravity 1.68SpecificationsThiourea dioxide(%) ≥99%Thiourea(%) ≤0.1%Moisture(%) ≤0.05%Iron (Fe) (%) ≤10PPMSulphate(%) ≤0.17%Packing25kgs kraft paper compound plastic bags25kgs ...