U. S. DEPARTMENT OF COMMERCE National Bureau of Standards

Daniel C. Roper, Secretary Miscellaneous Publication Ml26 NATIONAL EUREAU OF STANDARDS Issued *&TM*7 26> 1937 Lyman J. Briggs, Director TEMPERATURE INTERCONVERSION TABLES (°C^5 F) AND MELTING POINTS

OF THE CHEMICAL ELEMENTS

Table 1.

Conversion table: degrees centigrade to degrees Fahrenheit

c 10 20 30 40 50 60 70 80 90

r r F F F i F a M

i?

j? — 200 — 328 — 346 — 364 —382 — 400 — 418 —436 —454

-100 -148 -166 -184 -202 -220 -238 -256 -274 -292 -310

-0 + 32 + 14 -4 -22 -40 -58 -76 -94 -112 -130

32 50 68 86 104 122 140 158 176 194 °C o F

100 212 230 248 266 284 302 320 338 356 374 200 392 410 428 446 464 482 500 518 536 554 1 1. 8 4AA oUU O/Z ton oyu OUo A9A OZO (KAA 044 AA9 OOZ con OoU AOQ oy© 71 ft 1 10 TiA i o4 2

3

3. 6

5. 4 400 752 770 788 806 824 842 860 878 896 914 A 7 9 500 932 950 968 986 1004 1022 1040 1058 1076 1094 4 7. Z OUU 1 1 1 o 1 1 1 -

1i1louqa 111 AG 14o 111100AA 1 1 Q.A 1 lo4 11ZUZ 9A9 1ZZU 1 99A 1 9QQ 11ZOO 9^A 1 97/1 IZi 4

5

6

9. 10. 8 700 1292 1310 1328 1346 1364 1382 1400 1418 1436 1454 809 1472 1490 1508 1526 1544 1562 1580 1598 1616 1634 7

c

12. 6

1 A A 900 1652 1670 1688 1706 1724 1742 1760 1778 1796 1814 o

9

it. t

16. 2 1000 1832 1850 1868 1886 1904 1922 1940 1958 1976 1994 11UU on i o ZUoU 9A4Q 9AAA ZUOO 9AQA ZUo4 91 AO Z1UZ 91Z 1 9AZU 91ZlooQQ 91ZlOO£A 91 7 A Z 1 /4 10 18. 14UU 9 1 09 z iyz OO 1 A ZZ 1U 999Q ZZZS 994 ZZ40A OORA ZZ04 99Q9 ZZoZ OQAA ZoUU Zolo 9QQA ZooO OQ KA Zo04

loUU 9Q79 Zoi Z OQAA Zo9U OA AQ Z4Uo 949A Z±ZO OAAA Z444 OAfkO Z4oU 9 \ OQ z4yo 9^1 Z01OA Z0o4

9 K CO ZOOZ Z570 9 KCQ 9ft AA ZOUO 9A9/1 Z0Z4 9A4 9 Z04Z 9AAA ZOOU 9A70 ZOYo 9AAA zoyo 2714

15UU 97Q9 Z(6Z orr c a 2750 2 / Do Z/oO ZoU4 9Q99 ZoZZ OQA A Zo4U OO CQ Zooo 9Q7A OO A A zoy4

louU 9Q 1 9 zy iz OAO A 90/1 Q zy4o 9QAA zyoo zy©4 QAA9 QA9A OAQQ oUoo O'JOO Q A7/( o y ° C

1700 3092 3110 3128 3146 3164 3182 3200 3218 3236 3254 1 0. 56 1800 3272 3290 3308 3326 3344 3362 3380 3398 3416 3434 2 1. 11 1900 3452 3470 3488 3506 3524 3542 3560 3578 3596 3614 3 1. 67 2000 3632 3650 3668 3686 3704 3722 3740 3758 3776 3794 A4

9 99 Z. ZZ 2100 3812 3830 3848 3866 3884 3902 3920 3938 3956 3974 5 2. 78 2200 3992 4010 4028 4046 4064 4082 4100 4118 4136 4154 6 3. 33

4.300 A 1 70 417Z 4190 A OAO 4208 A 00£ 4ZZo A OA A 4244 A OftO 4Z0Z A OOA 4ZoU A OAO 4zys A Q 1 A 4olO A O O A 4334

7 3. 89 2400 4352 4370 4388 4406 4424 4442 4460 4478 4496 4514 8 4. 44 2500 4532 4550 4568 4586 4604 4622 4640 4658 4676 4694 9 5. 00 2600 4712 4730 4748 47o0 47o4 A OAO 4bOZ A OOA 4oZU A OOQ A o r R 4ooo A 07/i 4o74

1 A

10 K KA O. OO 2700 4892 4910 4928 4946 4964 4982 5000 5018 5036 5054 11 6 11 2800 5072 5090 5108 5126 5144 5162 5180 5198 5216 5234 12 a 67 2900 5252 5270 5288 5306 5324 5342 5360 5378 5396 5414

13

14

7. 22

7. 78 3000 5432 5450 5468 5486 5504 5522 5540 5558 5576 5594

3100 5612 5630 5648 5666 5684 5702 5720 5738 5756 5774 15 8. 33 3200 5792 5810 5828 5846 5864 5882 5900 5918 5936 5954

3300 5972 5990 6008 6026 6044 6062 6080 6098 6116 6134 16 8. 89

9. 44 3400 6152 6170 6188 6206 6224 6242 6260 6278 6296 6314

17 3500 6332 6350 6368 6386 6404 6422 6440 6458 6476 6494 18 10. 00 3600 6512 6530 6548 6568 6584 6602 6620 6638 6856 6674 3700 6692 6710 6728 6746 6764 6782 6800 6818 6836 6854 3800 6872 6890 6908 6926 6944 6962 6980 6998 7016 7034 3900 7052 7070 7088 7106 7124 7142 7160 7178 7196 7214 °C 10 20 30 40 50 60 | 70 80 90

Examples: 1347° C = 2444° F 4- 12.6° F = 2456.6° F. 3367° F = 1850° C + 2.78° C = 1852.78° C. 115117°—37 (1)
2 TABLE 2.

Conversion table: degrees Fahrenheit to degrees centigrade

(Single boldface figures indicate recurring decimals)

Ji 10 20 30 40 50 60 70 80 90

-400

-300

-200

c

-240.

-184. 4 -128. 8

-245. 5 -190.

-134. 4

C

-251. 1 -195. 5 - 140.

-256. 6 -201. 1 -145. 5-262. 2 -206. 6 -151. 1-267. 7 -212. 2 -156. 6

C

-217.~7 -162. 2

C

-223." 3 -167. 7

C

-22&8

-173. 3

C

-234 4 -178. 8 ^-100 -0

-73. 3 -17. 7 -78. 8 -23. 3 -84. 4 -28. 8 -90.

-34. 4 -95. 5 -40.

-101. 1 -45. 5 -106. 6 -51. 1 -112 2 -56. 6 -117. 7 -62. 2 -123. 3 -67. 7 — 17. 7 — 12. 2 — 6. 6 — 1.1 + 4. 4 + 10. + 15. 5 + 21. 1 + 26. 6 + 32. 2 100 200

300

37. 7

93. 3

148. 8

43. 3

98. 8

154. 4

48. 8

104. 4

160.

54. 4

110.

165. 5

60. 115. 5

171. 1

65. 5

121. 1

176. 6

71. 1

126. 6

182. 2

76. 6

132. 2

187. 7

82. 2

137. 7 193. 3

87. 7 143. 3

198. 8 400

500

600

204. 4

2G0. 315. 5

210.

265. 5

321. 1

215. 5

271. 1 326. 6

22], 1 276. 6

332. 2

226. 6

282. 2

337. 7

232. 2 287. 7 343. 3

237. 7 293. 3

348. 8

243. 3

298. 8

354. 4

248. 8

304. 4

360.

254. 4

310.

365. 5 700

800

900

371. 1

426. 6

482. 2

376. 6

432. 2

487. 7

382. 2

437. 7 493. 3

387. 7 443. 3

498. 8

393. 3

448. 8

504. 4

398. 8

454. 4

510.

404. 4

460. 515. 5

410. 465. 5

521. 1

415. 5

471. 1

526. 6

421. 1 476. 6

532. 2 1000 537. 7 543. 3 548. 8 554. 4 560. 565. 5 571. 1 576. 6 582. 2 587. 7 1100

1200

1300

593. 3

648. 8

704. 4

598. 8

654. 4

710.

604. 4

660.

715. 5

610. 665. 5

721. 1

615. 5

671. 1 726. 6

621. 1 676. 6

732. 2

626. 6

682. 2

737. 7

632. 2

687. 7 743. 3

637. 7 693. 3

748. 8

643. 3

698. 8 754 4 1400

1500 1600

760. 815. 5

871. 1

765. 5

821. 1 876. 6

771. 1 826. 6

882. 2

776. 6

832. 2

887. 7

782. 2

837. 7 893. 3

787. 7 843. 3

898. 8

793. 3

848. 8

904. 4

798. 8

854. 4

910.

804. 4

860.

915. 5

810. 865. 5

921. 1 1700 1800 1900

926. 6

982. 2

1037. 7

932. 2

987. 7 1043. 3

937. 7 993. 3

1048. 8

943. 3

998. 8

1054. 4

948. 8

1004. 4

1060.

954. 4

1010. 1065. 5

960. 1015. 5

1071. 1

965. 5

1021. 1 1076. 6

971. 1 1026. 6

1082. 2

976. 6

1032. 2

1087. 7 2000 1093. 3 1098. 8 1104. 4 1110. 1115. 5 1121. 1 1126. 6 1132. 2 1137. 7 1143. 3 2100 2200

2300

1148. 8

1204. 4

1260.

1154. 4

1210. 1265. 5

1160.

1215. 5

1271. 1

1165. 5

1221. 1 1276. 6

1171. 1 1226. 6

12S2. 2

1176. 6

1232. 2

1287. 7

1182. 2

1237. 7 1293. 3

1187. 7 1243. 3

1298. 8

1193. 3

1248. 8

1304. 4

1198. 8

1254. 4

1310. 2400

2500 2600

1315. 5

1371. 1

1426. 6

1321. 1 1376. 6

1432. 2

1328. 6

1382. 2

1437. 7

1332. 2

1387. 7 1443. 3

1337. 7 1393. 3

1448. 8

1343. 3

1398. 8

1454. 4

1348. 8

1404. 4

1460.

1354. 4

1410. 1465. 5

1360.

1415. 5

1471. 1

1365. 5

1421. 1 1476. 6 2700

2800 2900

1482. 2

1537. 7 1593. 3

1487. 7 1543. 3

1598. 8

1493. 3

1548. 8

1601. 4

1498. 8

1554. 4

1610.

1504. 4

1560.

1615. 5

1510.

1565. 5

1621. 1

1515. 5

1571. 1 1626. 6

1521. 1 1576. 6

1632. 2

1526. 6

1582. 2

1637. 7

1532. 2

1587. 7 1643. 3 3000 1648. 8 1654. 4 1660. 1665. 5 1671. 1 1676. 6 1682. 2 1687. 7 1693. 3 1698. 8 3100 3200

3300

1704. 4

1760.

1815. 5

1710. 1765. 5

1821. 1

1715. 5

1771. 1 1826. 6

1721. 1

1776. 6

1832. 2

1726. 6

1782. 2

1837. 7

1732. 2

1787. 7 1843. 3

1737. 7 1793. 3

1848. 8

1743. 3

1798. 8 1854 4

1748. 8

1804. 4

I860.

1754. 4

1810.

1865. 5 3400

3500

3600

1871. 1

1926. 6

1982. 2

1876. 6

1932. 2

1987. 7

1882. 2

1937. 7 1993. 3

1887. 7 1943. 3

1998. 8

1893. 3

1948. 8 2004. 4

1898. 8

1954. 4

2010.

1904. 4

1960. 2015. 5

1910.

1965. 5 2021. 1

1915. 5

1971. 1 2026. 6

1921. 1 1976. 6

2032. 2

J! 10 20 30 40 50 60 70 80 90

c

0. 5

1. 1

1. 6

2. 2

2. 7

3. 3

3. 8 4 4

5.

Examples: -246.0° F = -151.11° C-3.33 C = -154.44° C.

3762° F = 2071.1° C + 1.1° C = 2072.2° C.

2423.5° F = 1326.66° C + 1.66° C + 0.27° C = 1328.61'
3

Table 2—Continued

°F to °c

10 20 30 40 50 60 70 80 90

3700

38C0 3900

2037. 7 2093. 3

2148. 8

c

2043. 3

2098. 8

2154. 4

C

2048. 8

21C4. 4

2160.

C

2054. 4

2110.

2165. 5

C

2060.

2115. 5

2171. 1

C

2065. 5

2121. 1

2176. 6

C

2071. 1 2126. 6

2182. 2

C

2076. 6

2132. 2

2187. 7

C

20S2. 2

2137. 7 2193. 3

C

2037. 7

2143. 3

219S. 8 4000 2204. 4 2210. 2215. 5 2221. 1 2226. 6 2232. 2 2237. 7 2243. 3 2248. 8 2254. 4 4100

4200

4300

2260.

2315. 5

2371. 1

2265. 5

2321. 1 2376. 6

2271. 1 2326. 6

23S2. 2

2276. 6

2332. 2

2387. 7

2282. 2

2337. 7 2393. 3

2287. 7 2343. 3

2398. 8

2293. 3

2348. 8

2404. 4

2298. 8 2354. 4

2410.

2304. 4

2360.

2415. 5

2310. 2365. 5

2421. 1 4400 4500

4G00

2426. 6

2482. 2

2537. 7

2432. 2

2487. 7 2543. 3

2437. 7 2493. 3

2548. 8

2443. 3

2498. 8

2554. 4

2448. 8 2504. 4

2560.

2454. 4

2510.

2565. 5

2460.

2515. 5

2571. 1

2465. 5

2521. 1 2576. 6

2471. 1 2526. 6

2582. 2

2476. 6

2532. 2

2587. 7 4700

4800 4900

2593. 3

2648. 8

2704. 4

2598. 8

2654. 4

2710.

2604. 4

2660.

271 5. 5

2610.

2665. 5 2721. 1

2615. 5 2671. 1 2726.

2621. 1 2676. 6 2732. 22626. 6

2682. 2

2737. 7

2632. 2

2687. 7 2743. 3

2637. 7 2693. 3

2748. 8

2643. 3 2698. 8

2754. 4 5000 2760. 2765. 5 2771. 1 2776. 6 2782. 2 2787. 7 2793. 3 2798. 8 2804. 4 2810. °C

5100

5200

5300

2815. 5

2871. 1 2926. 6

2821. 1 2876. 6

2932. 2

2826. 6

28S2. 2

2937. 7

2832. 2

2887. 7 2943. 3

2837. 7 2893. 3

2948. 8

2843. 3

2898. 8

2954. 4

2848. 8

2904. 4

2960.

2854. 4

2910.

2965. 5

2860.

2915. 5 2971. 1

2865. 5

2921. 1 2976. 6

123

0. 5

1. 1 1. 5400

5500

5G00

2982. 2

3037. 7 3093 3

2987. 7 3043. 3 3098 82993. 3

3048. 8

3104. 4

2998. 8

3054. 4

3110.

3004. 4 3060. 3115. 53010. 3065. 5

3121. 1

3015. 5

3071. 1 3126. 6

3021. 1 3076. 6

3132. 2

3026. 6

3082. 2

3137. 7

3032. 2

3087. 7 3143. 3

4

5

6

2. 2

2. 7

3. 3 5700

5800

5900

3148. 8

3204. 4

3260.

3154. 4

3210.

3265. 5

3160. 3215. 5

3271. 1

3165. 5

3221. 1 3276. 6

3171. 1 3226. 6

3282. 2

3176. 6

3232. 2

3287. 7

3182. 2

3237. 7 3293. 3

3187. 7 3243. 3

3298. 8

3193. 3

3248. 8

3304. 4

3198. 8

3254. 4

3310.

7

89

3. 8

4. 4

5. 6000 3315. 5 3321. 1 3326. 6 3332. 2 3337. 7 3343. 3 3348. 8 3354. 4 3360. 3365. 5 6100

620C 6300

3371. 1 3426! 6

3482. 2

3376. 6

3432! 2

3487. 7

3382. 2 3437! 7 3493. 33387 7 3443! 3

3498. 8

3393 3

3448. 8

3504. 4

3398. 8

3454! 4

3510.

3404. 4

3460!

3515. 5

3410.

3465. 5

3521. 1

3415. 5

3471. 1 3526. 6

3421. 1 3476. 6 3532. 2 6400 6500 UUUU fififtft

3537. 7 3593. 3 QAAQ ft3543. 3

3598. 8

3654. 4

3548. 8 3604 4

^fifift ft

3554. 4

3610.

0\J\JO. ^66^ a

3560.

3615. 5 ou 11. J

3565. 5

3621. 1 3676. 6

3571. 1 3626. 6

3682. 2

3576. 6

3632. 2

3687. 7

3582. 2

3637. 7 3693 3

3587. 7 3643. 3

3698. 8 6700

6800

3704. 4

3760.

Oc lO. o

3710.

3765. 5

OOil, J-1

3715. 5

3771. 1 QQOA ft

3721. 1

3776. 6 QQQO 9 OOOA /v

3726. 6

3782. 2 OOO I . 4

3732. 2

3787. 7 3737. 7 3793. 3

3848. 8

3743. 3

3798. 8

3854. 4

3748. 8

3804. 4 3860 ft

3754. 4

3810. 3865 5 7000 3871. 1 3876. 6 3882. 2 3887. 7 3893. 3 3898. 8 3904. 4 3910. 3915. 5 3921. 1 7100

7200 7300

3926. 6

3982*. 2

4037. 7

3932. 2

3987! 7 4043. 3

3937. 7 3993! 3

4048. 8

3943. 3

3998! 8

4054. 4

3948. 8 4004! 4

4060.

3954. 4

4010!

4065. 5

3960. 4015! 5

4071. 1

3965 5

4021. 1 4076. 6

3971. 1

4026*. 6

4082. 2

3976. 6

4032. 2

4087. 7 7400

7500 7600

4093. 3

4148. 8 4204. 4

4098. 8

4154. 4

4210.

4104. 4

4160.

4215. 5

4110.

4165. 5

4221. 1

4115. 5 4171. 1 4226. 6

4121. 1 4176. 6

4232. 2

4126. 6

4182. 2

4237. 7

4132. 2

4187. 7 4243. 3

4137. 7 4193. 3

424S. 8

4143. 3

4198. 8 4254. 4 7700

7800

7900

4260. 4315. 5 4371. 14265. 5

4321. 1 4376. 6

4271. 1

4326. 6

4382. 2

4276. 6

4332. 2

4387. 7

4282. 2

4337. 7 4393. 3

4287. 7 4343. 3

4398. 8

4293. 3

4348. 8 4404. 4

4298. 8

4354. 4

4410.

4304. 4

4360.

4415. 5

4310. 4365. 5 4421. 1

OJ1 10 20 30 40 50 60 70 80 90
4

Table 3.—The Chemical Elements: Their atomic numbers, symbols, and weights,

and their melting points on the International Temperature Scale

[For International Temperature Scale see BS J. Research 1, 635 (1928) RP22J Temperatures below —190° C are on the Centigrade Thermodynamic Scale. The atomic weights given constitute the complete list of the International Weights of 1936, as approved

and reported by the Committee on Atomic Weights of the International Union of Chemistry. There is reason to believe that the following (unofficial) values may prove more nearly correct: Aluminum, 26.974; carbon, 12.009; gallium, 69.74.

.S O

Ac

AlSb

A

AsBa

Be

BiB

BrCd

Ca

C

Ce

Cs

CICr

Co

Cb

Cu

Dy

ErEu

F

Gd

Ga

Ge

Au

Hf

He

Ho

H

IIIn

IIrFeKr

La

Pb

LiLu

Mg

Mn

Ma

Hg

Mo

Name of element

Actinium

Aluminum..

Antimony. _ Argon

Arsenic Barium

Beryllium. _ Bismuth

Boron Bromine

Cadmium. _ Calcium

Carbon

Cerium

Cesium

Chlorine

Chromium..

Cobalt

Columbium.

Copper

Dysprosium.

Erbium

Europium __ Fluorine Gadolinium.

Gallium

Germanium.

Gold

Hafnium

Helium

Holmium

Hydrogen

H2 (normal)

HD

D2 (normal)

Illinium Indium

Iodine Iridium

Iron Krypton

Lanthanum._ Lead

Lithium

Lutecium

Magnesium. _ Manganese. _ Masurium

Mercury

Molybdenum

Melting

point

> 1600

660.

630. -189.

*»814 704

1280

271. 2300

-7.

320. 850 3700

60028 -101

1800

1490 2000

1083.

±0. 1 5 ±0. 1 3 ±0. 5 ±20

±40

3 ±0. 1 ±300

2 ±0. 2

9 ±0. 1 ±20

±100

±50

±2

±2

±50

±20

±50

±0. 1

223 ±10

29. 958

1063.

» 1700

! -271.

78 ±0.02

±10

±0.

4 ±0. 2 -259.

-259.

-256.

-254.

2 ±0. 1 2 ±0. 1 5 ±0. 2

5 ±0. 2

156. 114 2454

1535 -157

826

327. 186

4 ±0. 1 ±1

±3

±3

±0. 5 ±5

4 ±0. 1 ±5

650

1260 2700

-38.

2625

±2

±20

87±0 02 ±50

Atomic

weight

26. 97

121. 76

39. 944

74. 91

137. 36

9. 02

209. 00

10. 82

79. 916

112. 41

40. 08

12. 00

140. 13

132. 91

35. 457

52. 01

58. 94

92. 91

63. 57

162. 46

167. 64

152.

19. 00

157. 3

69. 72

72. 60

197. 2

178. 6

4. 002

163. 5

1. 0078

114. 76

126. 92

193. 1 55. 84

83. 7

138. 92

207. 22

6. 940

175.

24. 32

54. 93

200. 61

96.

< a60

1028

7 76

846

157884

1959

9188

86

7545

37

44

62

2134

1447

1138

16

73

5265

8190

69

50

2274

92

23

54

70

393040

85

87

< » Nd

Ne

Ni

N

Os

O

Pd

P

PtPo

K

PrPaRa

Rn

Re

Rh

Rb

Ru

Sm

ScSe

SiAg

Na

SrS

Ta

Te

Tb

TlTh

Tm

Sn

Ti

W

U

V

Xe

Yb

Y

Zn

Zr

Name of element

Neodymium.

Neon

Nickel

Nitrogen

Osmium

Oxygen

Palladium

Phosphorus, Y.

Phosphorus, R. Platinum

Polonium

Potassium

Praseodymium.

Protactinium _. Radium

Radon

Rhenium

Rhodium

Rubidium

Ruthenium

Samarium

Scandium

Selenium

Silicon Silver Sodium

Strontium

Sulfur: Monoclinic .. Rhombic

Tantalum

Tellurium

Terbium

Thallium

Thorium

Thulium

Tin

Titanium

Tungsten

Uranium

Vanadium

Xenon

Ytterbium

Yttrium

Zinc Zirconium

Element 85 Element 87

Melting

point

°C

840 - 248. 6 1455 -210.

2700

-218. 8 1554

44.

d 590

1773.

• 600

63

940

" 3000

700 -71

3000

1966 ±3

39 ±1

2500 ±100

> 1 300

1200 220

1430

960.

97. 770

±40

±0. 3 ±1

±0. 3 ±200

±0. 3 ±1

1 ±0. 1 5 ±1

±1

±50

±5

±20

±0.0

±0. 2 ±10

119. 2 ±0. 2

112. 8 ±0. 2 3000

450 327

300

1800

±100

±10

±5

±3

±150

231. 1820 3410

- 3600

1735 -112

±0. 1 ±100

±20

±50

±1

1490

419. 1750 250

» 23

±200

5 ±0. 1 ±700

Computed. h At 36 atmospheres. o At 30 atmospheres. <* At 43 atmospheres.

S. GOVERNMENT PRINTING OFFICE: 1937 For sale by the Superintendent of Documents, Washington, D. C. Price 5 cents