sulph- or (US) sulf-

combining form

containing sulphur

⇒ sulphate

⇒ sulphonic acid

The 'ph' spelling of sulphur and related words is used in British English. In the US the spelling is sulfur. However, the recommended spelling in chemistry is sulfur and this is found in technical writing. Also the sulf- spelling is used in the names of generic drugs

sulph-

Chiefly British.

variant of sulf-.

Related Word

sulf-

sulph-Chemistry

a prefix indicating a compound in which sulphur has been substituted for oxygen, as sodium sulphantimonate (Na₃SbS₄) compared with sodium antimonate (Na₃SbO₄). Thus, formulas such as sulphantimonite, sulpharsenate, etc., can be deduced from the formulas of the corresponding antimonite, arsenate, etc.

Also, (before consonants), sulpho-, sulf-, sulfo-. [combining form representing sulphur]

sulph-
or sulpho-
chiefly British variant of sulf-

sulph- Chem.|sʌlf|Variant of sulpho- before a vowel, as in sulphacetic (-ate), sulph-acetone, sulph-amic (-ate), sulph-amidate, sulph-amide, sulph-amine, sulph-aminic, sulph-amylic (-ate), sulph-anilic (-ate), sulph-antimonic (-ate, -iate), -ious (-ite), sulph-arsenic (-ate, -iate), -ious (-ite), sulph-arsin, sulph-ethamic (-ate), sulph-ethylic (-ate), sulph-imide, sulph-iodide: see quots. and the second elements; sulˈpharsenite, any compound containing the elements sulphur, arsenic, and oxygen.1843Chem. Gaz. I. 598 *Sulphacetate of silver.Ibid. 597 On decomposing the lead salt [sc. carbonate of lead]..with sulphuretted hydrogen, an acid is obtained, to which the author [sc. M. Melsens] has applied the name of *sulphacetic acid.1879Watts Dict. Chem., Suppl. 1047 *Sulphacetone..is formed by the action of 1 mol. phosphorus trisulphide on 6 mol. acetone.1868Ibid. V. 476 Neutral *Sulphamate of Ammonium.1857Miller Elem. Chem., Org. iv. §1. 244 *Sulphamic Acid.1868Watts Dict. Chem. V. 477 Sulphamic ethers.1844Chem. Gaz. II. 461 The *sulphamidate of ammonia is prepared by leaving the corresponding *sulphammonate in cold water for some hours.1868Watts Dict. Chem. V. 482 Sulphamidate..formed from the sulphammonate by the action of water.1838T. Thomson Chem. Org. Bodies 601 We may represent the compound thus:—SO² + H²Az + HO, or an atom of sulphurous acid, an atom of amide, and an atom of water, and distinguish it by the name of *sulphamide.1888Morley & Muir Watts' Dict. Chem. I. 186/2 Toluene *sulphamine..got by heating p amido-toluene sulphinic acid with conc. HCl.1902Encycl. Brit. XXVI. 728/2 Acetanilide..when cautiously dissolved in moderately strong fuming sulphuric acid..is..converted into the *sulphaminic acid C₆H₅. N(C₂H₃O)(SO₃H).1862Miller Elem. Chem., Org. (ed. 2) iii. §1. 164 Both the *sulphamylates of baryta.1852W. Gregory Handbk. Org. Chem. 233 *Sulphamylic Acid... This compound is formed exactly like sulphovinic acid.1856Q. Jrnl. Chem. Soc. IX. 260 *Sulphanilate of Silver.Ibid., M. Gerhardt's well-known *sulphanilic acid.1896Allbutt's Syst. Med. I. 825 A saturated solution of sulphanilic acid.1863Watts Dict. Chem. I. 335 The soluble *sulphantimonates are decomposed by all acids.1856Miller Elem. Chem., Inorg. xv. §7. 956 The tribasic *sulphantimoniate of sodium.., or Schlippe's salt.1878Abney Photogr. 72 A scarlet deposit..of silver sulph-antimoniate.1849D. Campbell Inorg. Chem. 290 Pentasulphide of antimony; *sulphantimonic acid, SbS₅.1859Mayne Expos. Lex. 1226/2 *Sulphantimonite, term for a genus of sulphosalts resulting from the combination of antimonious sulphide with the sulphobases.1868Watts Dict. Chem. V. 643 *Sulpharsenate of potassium.1858Graham & Watts Elem. Chem. II. 548 Monobasic *sulpharseniate of potassium.1841Brande Chem. (ed. 5) 893 Persulphuret of Arsenic. *Sulpharsenic Acid.Ibid. 892 Sesquisulphuret of Arsenic..*Sulpharsenious Acid.1859Mayne Expos. Lex. 1226/2 *Sulpharsenite, term for a genus of sulphosalts formed by combination with sulphobases of a degree of sulphuration of the arsenic, corresponding to arsenious acid in its composition.1868J. D. Dana Syst. Min. (ed. 5) ii. 84 (heading) Sulpharsenites, sulphantimonites, sulphobismuthites.1905Nature 6 Apr. 534/1 To these minerals a third must now be added in hutchinsonite, a new sulpharsenite from the Binnenthal, which also contains thallium as an important constituent.1954Sulpharsenite [see hutchinsonite].1961Brit. Med. Jrnl. 21 Jan. 5220/2 Sulphasalazine (‘salazopyrin’, ‘asulfidine’) has been used extensively in Sweden and America since 1941 in the treatment of colitis.1977Lancet 29 Oct. 931/1 Inflammatory bowel disease was diagnosed and the patient was put on intramuscular corticotrophin, sulphasalazine, and codeine phosphate.1868Watts Dict. Chem. V. 481 *Sulpharsin.Ibid. 625 *Sulphethamate of ammonium.1852W. Gregory Handbk. Org. Chem. 199 When neutral sulphate of oxide of ethyle is acted on by dry ammonia, there is formed the ammonia salt of a new acid, *sulphethamic acid.1857Miller Elem. Chem., Org. iii. §3. 143 *Sulphethylate of potash.Ibid. i. 28 Sulpho-vinic or *sulph-ethylic acid.1841Brande Chem. (ed. 5) 463 Exposed to the air, *sulfimide becomes white and deliquesces.1863Watts Dict. Chem. I. 338 *Sulphiodide of Antimony.

sulph- /sʌlf/ combining form. Also (US & Chemistry) sulf-.

ORIGIN: Alt. of sulpho-, sulpha- used before a vowel or h.

1.Chemistry. = sulpho-.

2.Pharmacology. = sulpha-.

DERIVATIVE sulphamate noun (Chemistry) a salt or ester of sulphamic acid M19.
sulˈphamic adjective (Chemistry): sulphamic acid, a strong crystalline acid, HOSO₂NH₂, used esp. in cleaning agents; a substituted organic derivative of this: M19.
sulphamide noun (Chemistry) the compound SO₂(NH₂)₂ M19.
sulphane noun (Chemistry) a hydride of sulphur M20.
sulphaˈnilamide noun (Pharmacology) the amide, C₆H₈N₂O₂S, of sulphanilic acid, a bacteriostatic compound that is the parent compound of the sulphonamides; a substituted derivative of this compound: M20.
sulphaˈnilic adjective (Chemistry): sulphanilic acid, a crystalline acid, (H₂N)C₆H₄SO₃HOH, used in making dyes and other chemicals: M19.
sulphˈarsenide noun (Mineralogy) a salt containing both sulphide and arsenide ions L19.
sulphiˈsoxazole noun [iso- + ox- + azole] Pharmacology a sulphonamide, C₁₁H₁₃N₃O₃S, used in the treatment of urinary tract infections; also called sulphafurazole: M20.
sulˈphonium noun [-onium] a hypothetical cation, H₃S⁺; a compound in which one or more of the hydrogen atoms in this cation is replaced by an organic radical: L19.
sulˈphoxide noun (Chemistry) any organic compound containing the group ·SO· joined to two carbon atoms L19.

sulph-
or sulpho-
— see sulf-

sulph-

Prefix

chemistry, Britain Alternative spelling of sulf-

Etymology

Shortening of sulphur

词汇	sulph-
词根词缀	Collins Dictionary.com Macquarie MWCD OED SOED Webster Wiktionary sulph- or (US) sulf- combining form containing sulphur ⇒ sulphate ⇒ sulphonic acid The 'ph' spelling of sulphur and related words is used in British English. In the US the spelling is sulfur. However, the recommended spelling in chemistry is sulfur and this is found in technical writing. Also the sulf- spelling is used in the names of generic drugs sulph- Chiefly British. 1 variant of sulf-. Related Word sulf- sulph-Chemistry a prefix indicating a compound in which sulphur has been substituted for oxygen, as sodium sulphantimonate (Na₃SbS₄) compared with sodium antimonate (Na₃SbO₄). Thus, formulas such as sulphantimonite, sulpharsenate, etc., can be deduced from the formulas of the corresponding antimonite, arsenate, etc. Also, (before consonants), sulpho-, sulf-, sulfo-. [combining form representing sulphur] sulph- or sulpho- chiefly British variant of sulf- sulph- Chem.\|sʌlf\|Variant of sulpho- before a vowel, as in *sulphacetic* (*-ate), sulph-acetone, sulph-amic* (*-ate), sulph-amidate, sulph-amide, sulph-amine, sulph-aminic, sulph-amylic* (*-ate), sulph-anilic* (*-ate), sulph-antimonic* (*-ate, -iate), -ious* (*-ite), sulph-arsenic* (*-ate, -iate), -ious* (*-ite), sulph-arsin, sulph-ethamic* (*-ate), sulph-ethylic* (*-ate), sulph-imide, sulph-iodide: see quots. and the second elements; sulˈpharsenite, any compound containing the elements sulphur, arsenic, and oxygen.1843Chem. Gaz. I. 598 Sulphacetate of silver.Ibid. 597 On decomposing the lead salt [sc. carbonate of lead]..with sulphuretted hydrogen, an acid is obtained, to which the author [sc. M. Melsens] has applied the name of sulphacetic acid.1879Watts Dict. Chem., Suppl. 1047 Sulphacetone..is formed by the action of 1 mol. phosphorus trisulphide on 6 mol. acetone.1868Ibid. V. 476 Neutral Sulphamate of Ammonium.1857Miller Elem. Chem., Org.* iv. §1. 244 Sulphamic Acid.1868Watts Dict. Chem.* V. 477 Sulphamic ethers.1844Chem. Gaz. II. 461 The sulphamidate of ammonia is prepared by leaving the corresponding sulphammonate in cold water for some hours.1868Watts Dict. Chem. V. 482 Sulphamidate..formed from the sulphammonate by the action of water.1838T. Thomson Chem. Org. Bodies 601 We may represent the compound thus:—SO² + H²Az + HO, or an atom of sulphurous acid, an atom of amide, and an atom of water, and distinguish it by the name of sulphamide.1888Morley & Muir Watts' Dict. Chem.* I. 186/2 Toluene sulphamine..got by heating p amido-toluene sulphinic acid with conc. HCl.1902Encycl. Brit. XXVI. 728/2 Acetanilide..when cautiously dissolved in moderately strong fuming sulphuric acid..is..converted into the sulphaminic acid C₆H₅. N(C₂H₃O)(SO₃H).1862Miller Elem. Chem., Org. (ed. 2) iii. §1. 164 Both the sulphamylates of baryta.1852W. Gregory Handbk. Org. Chem.* 233 Sulphamylic Acid... This compound is formed exactly like sulphovinic acid.1856Q. Jrnl. Chem. Soc. IX. 260 Sulphanilate of Silver.Ibid., M. Gerhardt's well-known sulphanilic acid.1896Allbutt's Syst. Med. I. 825 A saturated solution of sulphanilic acid.1863Watts Dict. Chem.* I. 335 The soluble sulphantimonates are decomposed by all acids.1856Miller Elem. Chem., Inorg.* xv. §7. 956 The tribasic sulphantimoniate of sodium.., or Schlippe's salt.1878Abney Photogr.* 72 A scarlet deposit..of silver sulph-antimoniate.1849D. Campbell Inorg. Chem. 290 Pentasulphide of antimony; sulphantimonic acid, SbS₅.1859Mayne Expos. Lex.* 1226/2 Sulphantimonite, term for a genus of sulphosalts resulting from the combination of antimonious sulphide with the sulphobases.1868Watts Dict. Chem.* V. 643 Sulpharsenate of potassium.1858Graham & Watts Elem. Chem.* II. 548 Monobasic sulpharseniate of potassium.1841Brande Chem.* (ed. 5) 893 Persulphuret of Arsenic. Sulpharsenic Acid.Ibid. 892 Sesquisulphuret of Arsenic..Sulpharsenious Acid.1859Mayne Expos. Lex. 1226/2 *Sulpharsenite, term for a genus of sulphosalts formed by combination with sulphobases of a degree of sulphuration of the arsenic, corresponding to arsenious acid in its composition.1868J. D. Dana Syst. Min. (ed. 5) ii. 84 (heading) Sulpharsenites, sulphantimonites, sulphobismuthites.1905Nature 6 Apr. 534/1 To these minerals a third must now be added in hutchinsonite, a new sulpharsenite from the Binnenthal, which also contains thallium as an important constituent.1954Sulpharsenite [see hutchinsonite].1961Brit. Med. Jrnl. 21 Jan. 5220/2 Sulphasalazine (‘salazopyrin’, ‘asulfidine’) has been used extensively in Sweden and America since 1941 in the treatment of colitis.1977Lancet 29 Oct. 931/1 Inflammatory bowel disease was diagnosed and the patient was put on intramuscular corticotrophin, sulphasalazine, and codeine phosphate.1868Watts Dict. Chem. V. 481 Sulpharsin.Ibid. 625 Sulphethamate of ammonium.1852W. Gregory Handbk. Org. Chem. 199 When neutral sulphate of oxide of ethyle is acted on by dry ammonia, there is formed the ammonia salt of a new acid, sulphethamic acid.1857Miller Elem. Chem., Org.* iii. §3. 143 Sulphethylate of potash.Ibid. i. 28 Sulpho-vinic or sulph-ethylic acid.1841Brande Chem. (ed. 5) 463 Exposed to the air, sulfimide becomes white and deliquesces.1863Watts Dict. Chem.* I. 338 Sulphiodide of Antimony. sulph- /sʌlf/ combining form. Also (US & Chemistry) sulf-. ORIGIN: Alt. of sulpho-, sulpha- used before a vowel or h. 1.Chemistry. = sulpho-. 2.Pharmacology. = sulpha-. DERIVATIVE sulphamate noun (Chemistry) a salt or ester of sulphamic acid M19. sulˈphamic adjective (Chemistry): sulphamic acid, a strong crystalline acid, HOSO₂NH₂, used esp. in cleaning agents; a substituted organic derivative of this: M19. sulphamide noun (Chemistry) the compound SO₂(NH₂)₂ M19. sulphane noun (Chemistry) a hydride of sulphur M20. sulphaˈnilamide noun (Pharmacology) the amide, C₆H₈N₂O₂S, of sulphanilic acid, a bacteriostatic compound that is the parent compound of the sulphonamides; a substituted derivative of this compound: M20. sulphaˈnilic adjective (Chemistry): sulphanilic acid, a crystalline acid, (H₂N)C₆H₄SO₃HOH, used in making dyes and other chemicals: M19. sulphˈarsenide noun (Mineralogy) a salt containing both sulphide and arsenide ions L19. sulphiˈsoxazole noun [iso- + ox- + azole] Pharmacology a sulphonamide, C₁₁H₁₃N₃O₃S, used in the treatment of urinary tract infections; also called sulphafurazole: M20. sulˈphonium noun [-onium] a hypothetical cation, H₃S⁺; a compound in which one or more of the hydrogen atoms in this cation is replaced by an organic radical: L19. sulˈphoxide noun (Chemistry) any organic compound containing the group ·SO· joined to two carbon atoms L19. sulph-* or sulpho- — see sulf- sulph- Prefix chemistry, Britain Alternative spelling of sulf- Etymology Shortening of sulphur
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