Table 9.--U.S. magnesium compounds shipped and used1/ --------------------------------------------------------------------------------------------------------------------------- 1942 1943 1944 1945 ------------------- ------------------- ------------------ -------------------- Quantity Value Quantity Value Quantity Value Quantity Value (metric (thou- (metric (thou- (metric (thou- (metric (thou- tons) sands) tons) sands) tons) sands) tons) sands) --------------------------------------------------------------------------------------------------------------------------- Caustic-calcined and specified (USP and technical) magnesias2/---------- 38,001 $2,028 173,991 $11,498 126,319 $6,482 39,254 $2,504 Magnesium hydroxide [100% Mg(OH)2]-------- NA NA NA NA NA NA NA NA Magnesium sulfate (anhydrous and hydrous)- 18,325 1,030 23,964 1,320 23,192 1,289 24,623 1,377 Magnesium chloride------------------------ 190,509 7,469 588,339 22,270 479,403 19,961 NA NA Precipitated magnesium carbonate2/-------- 59,912 5,597 50,128 4,857 47,865 4,885 45,598 4,824 Refractory magnesia----------------------- 248,261 7,824 273,409 9,341 252,642 8,426 231,327 7,414 ------------------------------------------------------------------------------- 1946 1947 1948 1949 ------------------- ------------------- ------------------ -------------------- Quantity Value Quantity Value Quantity Value Quantity Value (metric (thou- (metric (thou- (metric (thou- (metric (thou- tons) sands) tons) sands) tons) sands) tons) sands) ------------------------------------------------------------------------------- Caustic-calcined and specified (USP and technical) magnesias2/---------- 40,985 $2,855 24,341 $2,509 30,127 $3,381 29,488 $3,109 Magnesium hydroxide [100% Mg(OH)2]-------- NA NA NA NA NA NA NA NA Magnesium sulfate (anhydrous and hydrous)- NA NA NA NA NA NA NA NA Magnesium chloride------------------------ NA NA NA NA NA NA NA NA Precipitated magnesium carbonate2/-------- 42,910 4,707 52,422 6,359 54,534 7,719 50,724 7,106 Refractory magnesia----------------------- 222,101 7,232 285,692 10,128 299,434 13,445 227,149 10,478 ------------------------------------------------------------------------------- 1950 1951 1952 1953 ------------------- ------------------- ------------------ -------------------- Quantity Value Quantity Value Quantity Value Quantity Value (metric (thou- (metric (thou- (metric (thou- (metric (thou- tons) sands) tons) sands) tons) sands) tons) sands) ------------------------------------------------------------------------------- Caustic-calcined and specified (USP and technical) magnesias2/---------- 37,600 $4,137 45,342 $4,810 34,523 $3,769 39,027 $3,991 Magnesium hydroxide [100% Mg(OH)2]-------- NA NA NA NA NA NA 3,932 304 Magnesium sulfate (anhydrous and hydrous)- NA NA NA NA NA NA NA NA Magnesium chloride------------------------ NA NA NA NA NA NA NA NA Precipitated magnesium carbonate2/-------- 49,480 8,374 54,796 8,456 39,247 6,996 36,993 6,067 Refractory magnesia----------------------- 304,306 14,916 392,083 18,400 350,966 17,256 362,087 19,061 ------------------------------------------------------------------------------- 1954 1955 1956 1957 ------------------- ------------------- ------------------ -------------------- Quantity Value Quantity Value Quantity Value Quantity Value (metric (thou- (metric (thou- (metric (thou- (metric (thou- tons) sands) tons) sands) tons) sands) tons) sands) ------------------------------------------------------------------------------- Caustic-calcined and specified (USP and technical) magnesias2/---------- 29,260 $2,155 49,923 $5,688 70,301 $7,971 73,384 $6,525 Magnesium hydroxide [100% Mg(OH)2]-------- 41,778 2,527 70,291 5,675 81,899 5,905 141,936 11,455 Magnesium sulfate (anhydrous and hydrous)- NA NA NA NA NA NA NA NA Magnesium chloride------------------------ NA NA NA NA NA NA 3/316,805 3/16,581 Precipitated magnesium carbonate2/-------- 41,643 11,986 32,715 7,294 29,979 6,499 26,923 6,935 Refractory magnesia----------------------- 261,500 13,851 379,894 20,305 390,651 22,663 424,312 26,319 ------------------------------------------------------------------------------- 1958 1959 1960 1961 ------------------- ------------------- ------------------ -------------------- Quantity Value Quantity Value Quantity Value Quantity Value (metric (thou- (metric (thou- (metric (thou- (metric (thou- tons) sands) tons) sands) tons) sands) tons) sands) ------------------------------------------------------------------------------- Caustic-calcined and specified (USP and technical) magnesias2/---------- 60,539 $6,154 71,021 $6,230 78,417 $8,066 96,310 $9,402 Magnesium hydroxide [100% Mg(OH)2]-------- 176,632 5,731 251,785 7,210 285,022 8,044 345,784 10,412 Magnesium sulfate (anhydrous and hydrous)- NA NA NA NA NA NA NA NA Magnesium chloride------------------------ 3/121,103 3/7,361 3/121,997 3/7,240 3/147,459 3/8,888 3/145,286 3/9,820 Precipitated magnesium carbonate2/-------- 23,506 4,813 20,256 4,723 16,015 3,714 13,323 3,246 Refractory magnesia----------------------- 376,368 23,375 469,869 31,458 458,955 30,863 543,376 35,408 ------------------------------------------ See footnotes at end of table. Table 9.--U.S. magnesium compounds shipped and used1/--Continued --------------------------------------------------------------------------------------------------------------------------- 1962 1963 1964 1965 ------------------- ------------------- ------------------ -------------------- Quantity Value Quantity Value Quantity Value Quantity Value (metric (thou- (metric (thou- (metric (thou- (metric (thou- tons) sands) tons) sands) tons) sands) tons) sands) --------------------------------------------------------------------------------------------------------------------------- Caustic-calcined and specified (USP and technical) magnesias2/---------- 96,980 $9,629 127,500 $10,698 76,288 $8,556 81,659 $9,163 Magnesium hydroxide [100% Mg(OH)2]-------- 321,729 10,042 389,830 11,507 37,688 1,740 61,075 2,577 Magnesium sulfate (anhydrous and hydrous)- NA NA NA NA NA NA NA NA Magnesium chloride------------------------ 3/241,240 3/18,173 3/262,488 3/20,093 277,461 25,025 277,407 25,023 Precipitated magnesium carbonate2/-------- 12,492 3,064 10,873 2,587 6,617 NA 7,456 NA Refractory magnesia----------------------- 522,288 35,186 646,582 44,378 4/763,862 49,220 4/813,820 56,100 ------------------------------------------------------------------------------- 1966 1967 1968 1969 ------------------- ------------------- ------------------ -------------------- Quantity Value Quantity Value Quantity Value Quantity Value (metric (thou- (metric (thou- (metric (thou- (metric (thou- tons) sands) tons) sands) tons) sands) tons) sands) ------------------------------------------------------------------------------- Caustic-calcined and specified (USP and technical) magnesias2/--------- 90,146 $9,686 103,643 $11,250 122,896 $12,226 139,981 $14,698 Magnesium hydroxide [100% Mg(OH)2]-------- 67,705 3,138 59,387 2,688 70,979 2,888 80,402 3,540 Magnesium sulfate (anhydrous and hydrous)- NA NA NA NA NA NA NA NA Magnesium chloride------------------------ 277,119 21,385 347,388 26,396 357,692 27,147 371,647 28,307 Precipitated magnesium carbonate2/-------- 8,534 NA 7,768 NA 7,975 NA 7,076 NA Refractory magnesia----------------------- 4/773,039 52,290 4/623,876 43,148 4/599,551 44,535 4/668,812 51,843 ------------------------------------------------------------------------------- 1970 1971 1972 1973 ------------------- ------------------- ------------------ -------------------- Quantity Value Quantity Value Quantity Value Quantity Value (metric (thou- (metric (thou- (metric (thou- (metric (thou- tons) sands) tons) sands) tons) sands) tons) sands) ------------------------------------------------------------------------------- Caustic-calcined and specified (USP and technical) magnesias2/---------- 111,054 $19,301 114,961 $18,621 116,356 $15,856 143,034 $26,929 Magnesium hydroxide [100% Mg(OH)2]-------- 78,971 3,655 64,742 2,030 60,483 3,606 75,590 4,857 Magnesium sulfate (anhydrous and hydrous)- NA NA NA NA e/55,800 e/4,400 57,163 4,551 Magnesium chloride------------------------ 465,413 36,002 522,243 35,744 NA NA NA NA Precipitated magnesium carbonate2/-------- 6,150 NA 4,999 1,251 4,603 1,476 4,569 1,746 Refractory magnesia----------------------- 4/727,347 60,333 4/568,364 50,359 631,494 60,331 731,689 69,904 ------------------------------------------------------------------------------- 1974 1975 1976 1977 ------------------- ------------------- ------------------ -------------------- Quantity Value Quantity Value Quantity Value Quantity Value (metric (thou- (metric (thou- (metric (thou- (metric (thou- tons) sands) tons) sands) tons) sands) tons) sands) ------------------------------------------------------------------------------- Caustic-calcined and specified (USP and technical) magnesias2/--------- 135,014 $27,916 108,455 $17,207 121,978 $28,277 116,887 $29,574 Magnesium hydroxide [100% Mg(OH)2]-------- 84,426 5,584 54,743 5,410 55,392 7,784 84,653 11,879 Magnesium sulfate (anhydrous and hydrous)- 5,899 6,281 43,053 6,406 50,796 9,835 51,812 11,953 Magnesium chloride------------------------ NA NA NA NA NA NA NA NA Precipitated magnesium carbonate2/-------- 5,355 2,161 6,334 1,605 5,021 1,496 3,670 1,020 Refractory magnesia----------------------- 728,174 77,044 643,624 103,839 696,362 106,522 625,819 94,799 ------------------------------------------------------------------------------- 1978 1979 1980 1981 ------------------- ------------------- ------------------ -------------------- Quantity Value Quantity Value Quantity Value Quantity Value (metric (thou- (metric (thou- (metric (thou- (metric (thou- tons) sands) tons) sands) tons) sands) tons) sands) ------------------------------------------------------------------------------- Caustic-calcined and specified (USP and technical) magnesias2/---------- 141,695 $43,008 148,384 $50,047 142,703 $51,282 145,210 $58,420 Magnesium hydroxide [100% Mg(OH)2]-------- 462,505 40,520 463,908 47,475 447,538 50,791 376,490 47,922 Magnesium sulfate (anhydrous and hydrous)- 47,261 11,885 43,840 10,271 38,898 11,280 30,160 8,120 Magnesium chloride------------------------ NA NA NA NA NA NA NA NA Precipitated magnesium carbonate2/-------- 3,570 1,131 3,647 1,224 4,667 1,456 3,631 900 Refractory magnesia----------------------- 721,753 125,082 768,034 125,289 662,704 162,697 558,519 146,903 ------------------------------------------ See footnotes at end of table. Table 9.--U.S. magnesium compounds shipped and used1/--Continued ----------------------------------------------------------------------------------------------------------------------------- 1982 1983 1984 1985 ------------------- ------------------- ------------------ -------------------- Quantity Value Quantity Value Quantity Value Quantity Value (metric (thou- (metric (thou- (metric (thou- (metric (thou- tons) sands) tons) sands) tons) sands) tons) sands) --------------------------------------------------------------------------------------------------------------------------- Caustic-calcined and specified (USP and technical) magnesias2/---------- 133,833 $56,363 129,502 $57,416 128,488 $42,257 90,280 $33,772 Magnesium hydroxide [100% Mg(OH)2]-------- 323,920 41,597 326,381 47,231 323,852 41,400 237,916 64,075 Magnesium sulfate (anhydrous and hydrous)- 42,206 11,326 34,858 10,769 45,156 13,214 50,678 14,813 Magnesium chloride------------------------ NA NA NA NA NA NA NA NA Precipitated magnesium carbonate2/-------- 3,629 900 5,446 1,101 4,712 875 3,398 702 Refractory magnesia----------------------- 411,103 112,101 413,526 98,473 339,542 87,945 263,330 81,149 ------------------------------------------------------------------------------- 1986 1987 1988 1989 ------------------- ------------------- ------------------ -------------------- Quantity Value Quantity Value Quantity Value Quantity Value (metric (thou- (metric (thou- (metric (thou- (metric (thou- tons) sands) tons) sands) tons) sands) tons) sands) ------------------------------------------------------------------------------- Caustic-calcined and specified (USP and technical) magnesias2/---------- 86,515 $33,969 102,929 $27,565 123,905 $36,500 134,661 $39,529 Magnesium hydroxide [100% Mg(OH)2]-------- 207,670 56,305 238,760 52,578 392,743 76,031 341,933 70,260 Magnesium sulfate (anhydrous and hydrous)- 46,534 15,388 55,605 19,447 61,505 19,185 63,432 19,819 Magnesium chloride------------------------ NA NA NA NA NA NA NA NA Precipitated magnesium carbonate2/-------- 4,418 765 2,566 660 2,877 655 2,332 641 Refractory magnesia----------------------- 248,958 73,172 295,411 80,760 371,296 103,400 348,316 97,673 ------------------------------------------------------------------------------- 1990 ------------------- Quantity Value (metric (thou- tons) sands) ------------------- Caustic-calcined and specified (USP and technical) magnesias2/---------- 134,727 $37,850 Magnesium hydroxide [100% Mg(OH)2]-------- 366,016 69,280 Magnesium sulfate (anhydrous and hydrous)- 55,411 17,366 Magnesium chloride------------------------ NA NA Precipitated magnesium carbonate2/-------- 2,821 703 Refractory magnesia----------------------- 335,341 94,962 --------------------------------------------------------------------------------------------------------------------------- e/Estimated. NA Not available. 1/Prior to 1964, value data for magnesium chloride, magnesium hydroxide, and precipitated magnesium carbonate used by producer were calculated based on the average value, published for the compound that was shipped. 2/Excludes material produced as an intermediate step in the manufacture of other magnesium compounds. 3/Includes magnesium chloride used in production of magnesium metal. 4/Includes both single-burned and double-burned.