depressing agent in froth flotation

{"cid":"91200036","title":"Professional Froth Flotation Reagents Q80 Mining Flotation Chemical","imgUrl":"https:\/\/img.ismap.com\/nimg\/1d\/1f\/ec7710df51c36e47492e60a8b035-200x200-1.jpg","attrs":{"Brand Name":"YX","Model Number":"Q80","Place of Origin":"China","Packaging Details":"1000kg\/IBC drum, 200kg\/barrel","Payment Terms":"FOB\/CIF, T\/T","Cas Number":"108-11-2","Source":"Factory","Ph":"9-11","Vapor Density":"Not Applicable","Appreance":"Oilly Liquid","Attribute":"Flotation Chemical","Solubility":"Soluble In Water","Useage":"Mining Flotation"}}

{"cid":"91220186","title":"CMC Food Additive PH Value 6.0-8.5 Total Plate Count \u22641000cfu\/g Yeast Mold \u2264100cfu\/g","imgUrl":"https:\/\/img.ismap.com\/nimg\/25\/ba\/7651427cd63986abc34d0af89baa-200x200-1.jpg","attrs":{"Price":"3.75$\/kg","Brand Name":"Linguang","Model Number":"Food additive","Minimum Order Quantity":"1tons","Place of Origin":"Shandong,China","Packaging Details":"25kg craft paper with woven inner per bag, or packing based on the customers' requirement","Supply Ability":"2000tons\/year","Yeast & Mold":"\u2264100cfu\/g","PH Value":"6.0-8.5","Viscosity":"5000-10000mpa.s","Product Name":"Comestic Grade CMC","Total Plate Count":"\u22641000cfu\/g","Appearance":"White Or Light Yellow Powder And Granular","Purity":"\u226599.5%"}}