
414 REporT OF THE CHEMIST OF THE ~ 
How to MAKE A CoMMERCIAL VALUATION OF SoME UNMIXED 
CHEMICALS. 
1. Sulphate of ammonia. 
Multiply the per cent. of ammonia by .8235 and then multiply 
the obtained result by eighteen and one-half cents (the price of 
- one pound of nitrogen in the form of ammonia salts). Multiply 
the result by twenty. 
Example.— A manufacturer guarantees the ammonium 
sulphate sold by him to contain twenty per cent. of 
ammonia. 
.8235 x 2016.47 per cent. of ammonia. 
16.47 x 185 cents 304 cents, the value of the nitrogen in 100 
of ammonium in sulphate. 
304 cents x 20 =6,080 cents or $60.80 per ton. 
2. Sulphate of potash. 
Multiply the guaranteed per cent. of sulphate of potash 
by .54 and the result by five and a half and the product by 
twenty. 
Example.—A manufacturer guarantees his product to contain 
forty per cent. of sulphate of potash; .54x40—21.6 per cent. of | 
actual potash ; 21.6x55}—118.8 cents, the value of actual potash 
in 100 pounds of sulphate. 
118.8 cents x 202,376 cents or $23.76 per ton. 
3. Muriate (chloride) of potash. 
Multiply the per cent. of muriate guaranteed by .63; then this. 
_ result by four and one-half cents, and this product by twenty. 
4, Nitrate of soda. 
Multiply the guaranteed per cent. of nitrate of soda by 16.47 to 
find the per cent. of nitrogen. Multiply the per cent. of nitrogen 
by fourteen and one-half cents (the value of one pound of nitro- 
gen in the form of nitrates), then multiply the last result by 
twenty to get the value of one ton, 
As a matter of convenience for reference, there are given below 
in brief form the methods already used in converting one 

