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Phthalic :: Phthalic (a.) Pertaining to, or designating, a dibasic acid obtained by the oxidation of naphthalene and allied substances..

Verdigris :: Verdigris (n.) A green poisonous substance used as a pigment and drug, obtained by the action of acetic acid on copper, and consisting essentially of a complex mixture of several basic copper acetates..

Metalloid :: Metalloid (n.) Now, one of several elementary substances which in the free state are unlike metals, and whose compounds possess or produce acid, rather than basic, properties; a nonmetal; as, boron, carbon, phosphorus, nitrogen, oxygen, sulphur, chlorine, bromine, etc., are metalloids..

Monobasic :: Monobasic (a.) Capable of being neutralized by a univalent base or basic radical; having but one acid hydrogen atom to be replaced; -- said of acids; as, acetic, nitric, and hydrochloric acids are monobasic..

Chlorhydrin :: Chlorhydrin (n.) One of a class of compounds formed from certain polybasic alcohols (and especially glycerin) by the substitution of chlorine for one or more hydroxyl groups.

Monsel''s Salt :: Monsel's salt () A basic sulphate of iron; -- so named from Monsel, a Frenchman..

Erythrite :: Erythrite (n.) A colorless crystalline substance, C4H6.(OH)4, of a sweet, cooling taste, extracted from certain lichens, and obtained by the decomposition of erythrin; -- called also erythrol, erythroglucin, erythromannite, pseudorcin, cobalt bloom, and under the name phycite obtained from the alga Protococcus vulgaris. It is a tetrabasic alcohol, corresponding to glycol and glycerin..

Electro-positive :: Electro-positive (a.) Hence: Positive; metallic; basic; -- distinguished from negative, nonmetallic, or acid..

Naphthylamine :: Naphthylamine (n.) One of two basic amido derivatives of naphthalene, C10H7.NH2, forming crystalline solids..

Roccellic :: Roccellic (a.) Pertaining to, or designating, a dibasic acid of the oxalic series found in archil (Roccella tinctoria, etc.), and other lichens, and extracted as a white crystalline substance C17H32O4..

Fluosilicate :: Fluosilicate (n.) A double fluoride of silicon and some other (usually basic) element or radical, regarded as a salt of fluosilicic acid; -- called also silicofluoride..

Positive :: Positive (a.) Hence, basic; metallic; not acid; -- opposed to negative, and said of metals, bases, and basic radicals..

Turpeth :: Turpeth (n.) A heavy yellow powder, Hg3O2SO4, which consists of a basic mercuric sulphate; -- called also turpeth mineral..

Boride :: Boride (n.) A binary compound of boron with a more positive or basic element or radical; -- formerly called boruret.

Subsannation :: Subsalt (n.) A basic salt. See the Note under Salt.

Vesuvine :: Vesuvine (n.) A trade name for a brown dyestuff obtained from certain basic azo compounds of benzene; -- called also Bismarck brown, Manchester brown, etc..

Negative :: Negative (a.) Metalloidal; nonmetallic; -- contracted with positive or basic; as, the nitro group is negative..

Basic :: Basic (a.) Apparently alkaline, as certain normal salts which exhibit alkaline reactions with test paper..

Ammonium :: Ammonium (n.) A compound radical, NH4, having the chemical relations of a strongly basic element like the alkali metals..

Polyacid :: Polyacid (a.) Capable of neutralizing, or of combining with, several molecules of a monobasic acid; having more than one hydrogen atom capable of being replaced by acid radicals; -- said of certain bases; as, calcium hydrate and glycerin are polyacid bases..

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