Synthetic resins and their raw materials / A survey of the types and uses of synthetic resins, the organization of the industry, and the trade in resins and raw materials, with particular references to factors essential to tariff consideration. Under the general provisions of section 332, title III, part II, Tariff act of 1930. - United States Tariff Commission

The output of both the crude and the refined has increased in recent years, reaching new highs in 1937. Chemically pure glycerin constitutes about 60 percent of the total refined output and dynamite and other grades about 40 percent. In the production statistics shown in table [48], grades such as yellow distilled are included with the dynamite grade. Since large soap makers refine their own crude glycerin, the sale of crude is only a small part of the total output.

Table [48] shows domestic production of glycerin by grades and table [49] production for sale.

Table 48.—Glycerin: United States production by grades, in specified years, 1919-37

[In thousands of pounds]
Census year	Crude 80 percent basis	Refined
Census year	Crude 80 percent basis	Chemically pure grade	Dynamite grade	Total
1919	61,793	36,693	25,655	62,348
1920	54,688	32,860	31,571	64,431
1923	99,579	47,992	52,369	100,361
1924	95,154	53,243	37,368	90,611
1925	103,407	55,448	52,658	108,106
1926	116,369	64,460	49,579	114,039
1927	128,209	59,126	49,266	108,392
1928	130,499	66,419	46,622	113,041
1929	140,080	66,791	58,981	125,772
1930	138,675	69,654	50,974	120,628
1931	140,002	70,528	43,366	113,894
1932	133,919	63,624	41,539	105,163
1933	119,812	58,585	45,534	104,119
1934	153,115	80,359	48,553	128,912
1935	141,185	74,705	48,685	123,390
1936	154,096	85,386	47,535	132,921
1937	167,882	92,889	51,794	144,683

Source: Bureau of the Census, U. S. Department of Commerce.

Table 49.—Glycerin: United States production for sale, in specified years, 1919-35

Year	Crude¹			Refined
Year	Quantity	Value	Value per pound	Quantity	Value	Value per pound
	1,000 pounds		Cents	1,000 pounds		Cents
1919	18,228	$2,482,779	13.6	47,377	$11,461,213	24.2
1923	27,444	3,124,470	11.4	74,105	12,214,012	16.5
1925	30,735	4,258,351	13.9	94,303	16,991,213	18.0
1927	27,000	3,942,991	14.6	89,585	19,184,806	21.4
1929	28,790	2,358,031	8.2	113,140	12,715,641	11.2
1931	27,530	1,673,733	6.1	102,510	10,316,347	10.1
1931²	25,964	1,551,573	6.0	101,615	10,222,850	10.1
1933	22,161	1,191,000	5.4	107,853	7,915,000	7.3
1935	24,042	2,366,481	9.8	121,262	12,984,684	10.7

¹ By chemical and soap manufacturing plants only.

² Adjusted for comparison with 1933.