Details: You are purchasing 500 gm of Sodium Phosphate, monobasic. It is NOT the monohydrate as the pic shows. It is ANHYDROUS. I will also use plastic bottles to save on shipping costs. Good luck!! Buyer must be 21 years of age. Buyer assumes all liability for the use of this item. Buyer agrees to use this item in accordance with all local, state, and federal laws. This is for laboratory and scientific use only! Shipping will comply with all USPS regulations. Picture may not reflect new GHS labeling.