MDS 549.03

Wording: Natural sciences & mathematics Chemistry Mineralogy Not set Dictionaries and Encyclopaedias

0 Computer science, information & general works 252,013 ℹ️	1 Philosophy & psychology 270,129 🧠	2 Religion 681,242 🙏	3 Society, government, & culture 1,328,382 👫	4 Language 209,883 💬	5 Natural sciences & mathematics 431,918 🔬	6 Applied science & technology 940,635 💡	7 Arts & recreation 1,031,850 🎨	8 Literature & rhetoric 1,436,736 📚	9 History & geography 837,760 🗺️
50 Science 35,266 🥼	51 Mathematics 82,055 ➗	52 Astronomy 25,356 🔭	53 Physics 44,008 🍎	54 Chemistry 28,260 ⚗️	55 Earth sciences; geology 36,663 🌎	56 Fossils & Dinosaurs 11,038 💀	57 Biology 55,751 🧬	58 Plants (Botany) 26,824 🌿	59 Animals 86,697 🐼
540 Chemistry and allied sciences 6,727 ⚗	541 Chemical Reactions 5,775 💭	542 Techniques, procedures, apparatus, equipment, materials 560 🔬	543 Analytical chemistry 2,912 🌈	544 [Formerly: Qualitative Analysis] 336	545 [Formerly: Quantitative Analysis] 275	546 Elements, Mixtures, Compounds 2,694 ⚨	547 Organic chemistry 6,228 ⌬	548 Crystallography 1,088 💎	549 Mineralogy 1,665 ⚒
549.0 156	549.1 Determinative; Blowpiping 157	549.2 Native elements 25	549.3 Sulfids, tellurids, selenids, arsenids, antimonids, bismuthids 12	549.4 Compounds of chlorin, bromin, iodin, and fluorin 6	549.5 Oxygen compounds 26	549.6 Silicates 159 🏖	549.7 Other ternary oxygen compounds 34	549.8 Hydrocarbons	549.9 Geographic distribution 203 🌐
549.00 2	549.01 7	549.02 28	549.03 Dictionaries and Encyclopaedias 22	549.04	549.05 15	549.06 3	549.07 43	549.08 8	549.09 26