good idea. Finally found our scale and its definitely trisodium citrate anhydrous with density of 1.008 g/ml (and not the heavier dihydrate).
updating my calculations for Pure Ingredients brand Sodium Citrate (trisodium citrate anhydrous)
- 1 teaspoon = 4.93 ml
- trisodium citrate anydrous is 1.008 g/ml
- 4.969 grams per teaspoon (4.93 x 1.008)
- using molecular weights of trisodium citrate anhydrous and 3 sodium atoms, by weight the sodium is 26.7% of sodium citrate (3 x 22.989 / 258.07)
- 1327mg of sodium in 1 teaspoon (4.93 x 1.008 x .267)