4.1 The inclusion of the following paragraph, or a suitable equivalent, in any standard (preferably after the section on Scope) is due notification that the apparatus and reagents required in that standard are subject to the recommendations set forth in these practices.
| Name | Formula |
| * Acetic acid | CH
3COOH |
| Acetone | CH
3COCH3 |
| Acetylacetone (2,4-pentanedione) | CH
3COCH2COCH3 |
| Alizarin-Red-S | C
6H4COC6H-1,2-(OH)2-3-SO3NaCO |
| Aluminon (aurintricarboxylic acid-ammonium salt) | (4-HOC
6H3-3-COONH4)2C:C6H-3-(COONH4):O |
| Aluminum metal (99.9 % min) | Al |
| * Aluminum metal (sheet or rolled foil) | Al |
| Aluminum ammonium sulfate | Al
2(NH4)2(SO4)4·24H2O |
| Aluminum nitrate | Al(NO
3)3·9H2O |
| Aluminum sulfate | Al
2(SO4)3·18H2O |
| Aluminum oxide, fused (Alundum) | |
| 1-Amino-2-naphthol-4-sulfonic acid | NH
2C10H5(OH)SO3H |
| Ammonium acetate | CH
3COONH4 |
| Ammonium benzoate | C
6H5COONH4 |
| Ammonium bifluoride | NH
4FHF |
| Ammonium bisulfate | NH
4HSO4 |
| Ammonium bisulfite | NH
4HSO3 |
| Ammonium carbonate | (NH
4)2CO3 |
| * Ammonium chloride | NH
4Cl |
| * Ammonium citrate | CH
2(COONH4)C(OH)(COOH)CH2COONH4 |
| Ammonium fluoride | NH
4F |
| * Ammonium hydroxide
A | NH
4OH |
| Ammonium iodide | NH
4I |
| Ammonium molybdate | (NH
4)2MoO4 |
| * Ammonium heptamolybdate tetrahydrate | (NH
4)6Mo7O24·4H2O |
| Ammonium nitrate | NH
4NO3 |
| * Ammonium oxalate | NH
4OCOCOONH4·H2O |
| * Ammonium phosphate, dibasic (diammonium acid phosphate) | (NH
4)2HPO4 |
| * Ammonium persulfate (ammonium peroxydisulfate) | (NH
4)2S2O8 |
| * Ammonium sulfate | (NH
4)2SO4 |
| * Ammonium tartrate | NH
4OCO(CHOH)2COONH4 |
| Ammonium thiocyanate | NH
4SCN |
| Ammonium vanadate | NH
4VO3 |
| Antimony metal (powder) | Sb |
| Antimony trichloride | SbCl
3 |
| * Arsenic trioxide | As
2O3 |
| Asbestos (for use with Gooch crucible) | |
| | |
| Barium Chloride | BaCl
2·2H2O |
| Barium diphenylamine sulfonate | (C
6H5NHC6H4-4-SO3)2Ba |
| * Benzoic acid | C
6H5COOH |
| α-Benzoin oxime (benzoin anti-oxime) | C
6H5CHOHC:NOHC6H5 |
| Beryllium sulfate | BeSO
4·4H2O |
| Bismuth metal (99.9 % min) | Bi |
| Boric acid | H
3BO3 |
| Bromocresol green (3′,3",5′,5"-tetrabromo-
m-cresolsulfonephthalein) | C
6H4SO2OC(C6H-3,5-Br2-2-CH3-4-OH)2 |
| Bromocresol purple (5′,5"-Dibromo-
o-cresolsulfonephthalein) | C
6H4SO2OC(C6H2-3-CH3-5-Br-4-OH)2 |
| Bromine (liquid) | Br
2 |
| Bromophenol blue (3′,3",5′,5"-tetrabromophenolsulfonephthalein) | C
6H4SO2OC(C6H2-3,5-Br2-4-OH)2 |
| 1-Butanol | CH
3CH2CH2CH2OH |
| Butyl acetate (normal) | CH
3COOCH2CH2CH2CH3 |
| | |
| * Cadmium chloride | CdCl
2·21/2 H2O |
| Cadmium chloride, anhydrous | CdCl
2 |
| * † Calcium carbonate (low-boron) | CaCO
3 |
| Carbon dioxide (gas) | CO
2 |
| Carbon dioxide (solid) | CO
2 |
| Carbon tetrachloride | CCl
4 |
| Carminic acid | 1,3,4-(HO)
3-2-C6H11O6C6COC6H-5-COOH-6-OH-8-CH3CO |
| * Chloroform | CHCl
3 |
| Cinchonine | C
19H22N2O |
| Citric acid | HOC(COOH)(CH
2COOH)2 |
| Cobalt metal | Co |
| Cobalt sulfate | CoSO
4 |
| Coke | |
| Congo red test paper | |
| Copper metal (99.9 % min) | Cu |
| * Copper metal (powder or turnings) | Cu |
| Copper metal (P-free) | Cu |
| Copper metal (Mn, Ni, and Co-free, less than 0.001 % of each) | Cu |
| Copper-rare earth oxide mixture | |
|
m-Cresol purple (m-cresolsulfonephthalein) | C
6H4SO2OC(C6H3-2-CH3-4-OH)2 |
| Cupferron | C
6H5N(NO)ONH4 |
| Cupric chloride | CuCl
2·2H2O |
| * Cupric nitrate | Cu(NO
3)2·3H2O |
| * Cupric oxide (powder) | CuO |
| Cupric potassium chloride | CuCl
2·2KCl·2H2O |
| * Cupric sulfate | CuSO
4·5H2O |
| Curcumin | (2-CH
3OC6H3-1-OH-4-CH:CHCO)2CH2 |
| | |
| Devarda's alloy | 50Cu-45Al-5Zn |
Diethylenetriamine pentaacetic acid ([[(carboxymethyl)imino]bis(ethylenenenitrilo)]
tetraacetic acid) | ((HOCOCH
2)2NCH2CH2)2NCH2COOH |
| * Dimethylglyoxime | CH
3C:NOHC:NOHCH3 |
| N,N′ Diphenylbenzidine | C
6H5NHC6H4C6H4NHC6H5 |
| Diphenylcarbazide (1,5-diphenylcarbohydrazide) | C
6H5NHNHCONHNHC6H5 |
| * Disodium (ethylenedinitrilo) tetraacetate dihydrate | See (ethylenedinitrilo) tetraacetic acid disodium salt |
| Dithiol (toluene-3,4-dithiol) | CH
3C6H3(SH)2 |
| Dithizone (diphenylthiocarbazone) | C
6H5NHNHCSN:NC6H5 |
| | |
| Eriochrome black-T (1(1-hydroxy-2-naphthylazo)-6-nitro-2-naphthol-4-sulfonic acid sodium salt) | 1-HOC
10H6-2-N:N-1-C10H4-2-OH-4-SO3Na-6-NO2 |
| * EDTA (Disodium salt) | See (ethylenedinitrilo) tetraacetic acid disodium salt |
| * Ethanol | C
2H5OH |
| * Ethyl ether (diethyl ether) | C
2H5OC2H5 |
| * (Ethylenedinitrilo) tetraacetic acid disodium salt | HOCOCH
2(NaOCOCH2)NCH2N(CH2COONa)CH2COOH·2H2O |
| Ethylene glycol monomethyl ether (2-methoxy-ethanol) | CH
3OCH2CH2OH |
| | |
| * Ferric chloride | FeCl
3·6H2O |
| * Ferric nitrate | Fe(NO
3)3·9H2O |
| Ferric sulfate | Fe
2(SO4)3·nH2O |
| * Ferrous ammonium sulfate | Fe(NH
4)2(SO4)2·6H2O |
| * Ferrous sulfate | FeSO
4·7H2O |
| Fluoroboric acid | HBF
4 |
| Fluorescein, sodium salt | 2NaOCOC
6H4C:C6H3-3(:O)OC6H3-6-ONa |
| Formaldehyde | HCHO |
| * Formic acid
A | HCOOH |
| | |
| Gelatin | |
| Graphite | C |
| Glass wool | |
| Glycerol | CH
2OHCHOHCH2OH |
| | |
| Hydrazine sulfate | NH
2NH2·H2SO4 |
| * Hydrobromic acid
A | HBr |
| * Hydrochloric acid
A | HCl |
| * Hydrofluoric acid
A | HF |
| Hydrogen chloride gas | HCl |
| * Hydrogen peroxide | H
2O2 |
| Hydrogen sulfide gas | H
2S |
| Hydroquinone | 1,4-(OH)
2C6H4 |
| * Hydroxylamine hydrochloride | NH
2OH·HCl |
| * Hypophosphorous acid
B | H
3PO2 |
| | |
| Invert sugar | |
| * Iodine | I
2 |
| Iron metal or wire (99.8 % min) | Fe |
| Isopropyl ether | (CH
3)2CHOCH(CH3)2 |
| | |
| Lead metal | Pb |
| * Lead acetate | Pb(CH
3COO)2 |
| Lead chloride | PbCl
2 |
| * Lead nitrate | Pb(NO
3)2 |
| Litmus | |
| Lithium fluoride | LiF |
| | |
| Magnesium metal (Sn-free) | Mg |
| Magnesium perchlorate, anhydrous | Mg(ClO
4)2 |
| * Magnesium sulfate | MgSO
4·7H2O |
| Manganese metal (99.8 % min) | Mn |
| Manganous nitrate | Mn(NO
3)2 |
| Manganous sulfate | MnSO
4·H2O |
| Mannitol | CH
2OH(CHOH)4CH2OH |
| Marble chips | |
| * Mercuric chloride | HgCl
2 |
| * Mercury | Hg |
| * Methanol | CH
3OH |
| Methyl isobutyl ketone (4-methyl-2-pentanone) | CH
3COCH2CH(CH3)2 |
| * Methyl orange (
p[[p-dimethylamino)phenyl]azo]benzenesulfonic acid sodium salt) | 4-NaOSO
2C6H4N:NC6H4-4-N(CH3)2 |
| Methyl purple | formula unknown, patented |
| * Methyl red (
o -[[(p-dimethylamino)phenyl]azo]benzoic acid) | 4-(CH
3)2NC6H4N:NC6H4-2-COOH |
| Molybdenum metal (99.8 % min) | Mo |
| Molybdic acid, anhydride (molybdenum trioxide) | MoO
3 |
| Molybdic acid (ammonium paramolybdate) | Assay: as MoO
3-85 % |
| Morin, anhydrous (2′,3,4′,7-penta hydroxyflavone) | 5,7-(HO)
2C6H2 OC(C6H3-2,4-(OH)2):C(OH)CO |
| | |
| β-Naphthoquinoline (5,6-benzoquinoline) | C
10H6CH:CHCH:N |
| Neocuproine (2,9-dimethyl-1,10-phenanthroline) | (CH
3)2C12H6N2·12H2O |
| Nickel metal (99.8 % min) | Ni |
| Nickel metal (sheet) | Ni |
| Nickelous nitrate | Ni(NO
3)2·6H2O |
| Nickelous sulfate | NiSO
4·6H2O |
| * Nitric acid
A | HNO
3 |
| Nitrogen gas (oxygen-free) | N
2 |
| Nitrogen, liquid | N
2 |
|
m-Nitrophenol | NO
2C6H4OH |
| 1-Nitroso-2-naphthol(α-nitroso-β-naphthol) | NOC
10H6OH |
| Nitroso-R-salt (1-nitroso-2-naphthol-3,6-disulfonic acid disodium salt) | 1-NOC
10H4-2-(OH)-3,6-(SO3Na)2 |
| | |
| Osmium tetraoxide | OsO
4 |
| Oxalic acid | (COOH)
2 |
| Oxygen gas | O
2 |
| | |
| * Perchloric acid
A | HClO
4 |
| 1,10-Phenanthroline (
o -phenanthroline) | CH:CHCH:NC:CCH:CHC:CN:CHCH:CH·H
2O |
| * Phenolphthalein | C
6H4COOC(C6H4-4-OH)2 |
| * Phosphoric acid | H
3PO4 |
| Piperidine | NH(CH
2)4CH2 |
| Platinized quartz | |
| Platinized silica gel | |
| Platinum gauze | Pt |
| * Potassium biphthalate | 1-KOCOC
6H4-2-COOH |
| Potassium bisulfate | KHSO
4 |
| * Potassium bromate | KBrO
3 |
| * Potassium bromide | KBr |
| * Potassium chlorate | KClO
3 |
| * Potassium chloride | KCl |
| * Potassium chromate | K
2CrO4 |
| Potassium columbate | 4K
2O·3Cb2O5·16H2O |
| * Potassium cyanide | KCN |
| * Potassium dichromate | K
2Cr2O7 |
| * Potassium ferricyanide | K
3Fe(CN)6 |
| Potassium ferrocyanide | K
4Fe(CN)6·3H2O |
| * Potassium fluoride | KF·2H
2O |
| * Potassium hydroxide | KOH |
| * Potassium iodate | KIO
3 |
| * Potassium iodide | KI |
| Potassium iodide starch paper | |
| * Potassium nitrate | KNO
3 |
| * Potassium
m-periodate | KIO
4 |
| * Potassium permanganate | KMnO
4 |
| Potassium persulfate | K
2S2O8 |
| Potassium phosphate, monobasic | KH
2PO4 |
| * Potassium pyrosulfate | K
2S2O7 |
| * Potassium sulfate | K
2SO4 |
| Potassium tantalum fluoride | K
2TaF |
| Potassium thiocarbonate | K
2CS3 |
| * Potassium thiocyanate | KSCN |
| Pyrogallic acid (pyrogallol) | C
6H3-1,3-(OH)3 |
| | |
| Quinine sulfate | (C
20H24N2O2)2·H2SO4·2H2O |
| 8-Quinolinol (8-hydroxyquinoline) | HOC
6H3N:CHCH:CH |
| | |
| Sebacic acid | HOCO(CH
2)8COOH |
| Selenium (powder) | Se |
| Silicon dioxide (silica) | SiO
2 |
| * Silver nitrate | AgNO
3 |
| Soda-lime | |
| Soda-mica mineral (CO
2 absorbent) | |
| Sodium acetate | CH
3COONa |
| Sodium arsenite | NaAsO
2 |
| Sodium azide | NaN
3 |
| * Sodium bicarbonate | NaHCO
3 |
| * Sodium bismuthate | NaBiO
3 |
| Sodium bisulfate | see sodium hydrogen sulfate |
| * Sodium bisulfate, fused | see sodium hydrogen sulfate, fused |
| Sodium bisulfite | NaHSO
3 |
| * Sodium borate | Na
2B4O7·10H2O |
| * Sodium carbonate, anhydrous | Na
2CO3 |
| Sodium chlorate | NaClO
3 |
| Sodium chloride | NaCl |
| Sodium citrate | HOC(COONa)(CH
2COONa)2·2H2O |
| Sodium cyanide | NaCN |
| Sodium diethyldithiocarbamate | (C
2H5)2NCSSNa·3H2O |
| Sodium dimethylglyoximate | CH
3C(:NONa)C(:NONa)CH3·8H2O |
| Sodium diphenylamine sulfonate | C
6H5NHC6H4-4-SO3Na |
| Sodium dithionite (hydrosulfite) | Na
2S2O4 |
| * Sodium fluoride | NaF |
| Sodium hydrogen sulfate | NaHSO
4 |
| Sodium hydrogen sulfate, fused | A mixture of Na
2S2O7 and NaHSO4 |
| * Sodium hydroxide | NaOH |
| Sodium hypophosphite | NaH
2PO2·H2O |
| Sodium molybdate | Na
2MoO4·2H2O |
| Sodium nitrate | NaNO
3 |
| Sodium nitrite | NaNO
2 |
| Sodium oxalate | NaOCOCOONa |
| Sodium perchlorate | NaClO
4 |
| Sodium peroxide | Na
2O2 |
| Sodium phosphate, dibasic, anhydrous | Na
2HPO4 |
| Sodium pyrophosphate | Na
4P2O7·10H2O |
| Sodium pyrosulfate | Na
2S2O7 |
| Sodium sulfate, anhydrous | Na
2SO4 |
| Sodium sulfide | Na
2S·9H2O |
| Sodium sulfite | Na
2SO3·7H2O |
| Sodium sulfite, anhydrous | Na
2SO3 |
| Sodium thiocyanate | NaSCN |
| * Sodium thiosulfate | Na
2S2O3·5H2O |
| * Sodium tungstate | Na
2WO4·2H2O |
| * Stannous chloride | SnCl
2·2H2O |
| * Starch | (C
6H10O5)x |
| Succinic acid | HOCOCH
2CH2COOH |
| Sulfamic acid | NH
2SO3H |
| Sulfatoceric acid (ceric sulfate) | H
4Ce(SO4)4 |
| 5-Sulfosalicylic acid | 2-HOC
6H3-1-COOH-5-SO3H·2H2O |
| Sulfur dioxide gas | SO
2 |
| * Sulfuric acid
A | H
2SO4 |
| * Sulfurous acid
A | H
2SO3 |
| | |
| Talc | |
| * Tartaric acid | HOCO(CHOH)
2COOH |
| Test lead | Pb |
| Tetrapropylammonium hydroxide | (CH
3CH2CH2)4NOH |
| Thioglycollic acid (mercaptoacetic acid) | CH
2SHCOOH |
| Thiourea | NH
2CSNH2 |
| Tin metal (99.9 %min) | Sn |
| Titanium dioxide | TiO
2 |
| Titanium metal (low Sn) | Ti |
| Triethanolamine (2,2′,2"-nitrilotriethanol) | (CH
2OHCH2)3N |
| | |
| Uranium oxide | U
3O8 |
| * Uranyl nitrate | UO
2(NO3)2·6H2O |
| Urea | NH
2CONH2 |
| | |
| Zinc (99.9 % min) | Zn |
| Zinc metal (S-free) | Zn |
| Zinc oxide | ZnO |
| Zinc sulfate | ZnSO
4·7H2O |
| Zirconium oxide | ZrO
2 |
| Zirconium metal | Zr |
| Zirconyl chloride | ZrOCl
2·8H2O |
(A) * Reagent on which ACS specifications exist.
† ACS specification exists but does not cover all requirements.
For concentration of laboratory reagent, see Table 2.
4.2 It is assumed that the users of these practices will be trained analysts capable of performing common laboratory procedures skillfully and safely. It is expected that work will be performed in a properly-equipped laboratory.
