تفاعل #417397

معادلة التفاعل

phosphorous acid

formaldehyde

HCl

formaldehyde

Triethylenetetramine

→

Triethylenetetramine Phosphonate

المذيبات

ظروف التفاعل

المعالجة

1. 1
   درجة الحرارةThe mixture is then heated
2. 2
   درجة الحرارةto reflux
3. 3
   درجة الحرارةReflux
4. 4
   درجة الحرارةis maintained for 2 hours
5. 5
   درجة الحرارةis cooled

الإجراء التجريبي

To a 1 liter 5 neck flask fitted with a reflux condenser and dropping funnel is added 234.3 grams (2 mole) 70% phosphorous acid. Triethylenetetramine, 146 grams (1 mole) is then added dropwise while stirring, followed by 146 grams (4 moles) anhydrous HCl. The mixture is then heated to reflux and 162.2 grams (2 moles) 37% aqueous formaldehyde is added dropwise over 1 hour. Reflux is maintained for 2 hours after formaldehyde addition is complete, after which the reaction mixture containing the amino methylene phosphonic acid product is cooled and bottled.

المصدر