borax bead test

borax bead test
in qualitative inorganic analysis, a test for the presence of certain metallic elements by observing the colours given to a bead of borax in a loop of platinum wire held in the oxidizing and reducing parts of a Bunsen burner flame

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  • Borax bead test — The borax bead test is a traditional part of qualitative inorganic analysis to test for the presence of certain metals.A small loop is made in the end of a platinum wire (as used in the flame test) and heated in a Bunsen flame until red hot. It… …   Wikipedia

  • Bead test — The bead test is a traditional part of qualitative inorganic analysis to test for the presence of certain metals. The oldest one is the borax bead test or blister test. It was introduced by Berzelius in 1812.[1] Since then other salts were used… …   Wikipedia

  • Borax — For other uses, see Borax (disambiguation). Sodium borate redirects here. For sodium perborate, see Sodium perborate. Borax …   Wikipedia

  • Bead — (b[=e]d), n. [OE. bede prayer, prayer bead, AS. bed, gebed, prayer; akin to D. bede, G. bitte, AS. biddan, to ask, bid, G. bitten to ask, and perh. to Gr. pei qein to persuade, L. fidere to trust. Beads are used by the Roman Catholics to count… …   The Collaborative International Dictionary of English

  • Bead and butt — Bead Bead (b[=e]d), n. [OE. bede prayer, prayer bead, AS. bed, gebed, prayer; akin to D. bede, G. bitte, AS. biddan, to ask, bid, G. bitten to ask, and perh. to Gr. pei qein to persuade, L. fidere to trust. Beads are used by the Roman Catholics… …   The Collaborative International Dictionary of English

  • Bead mold — Bead Bead (b[=e]d), n. [OE. bede prayer, prayer bead, AS. bed, gebed, prayer; akin to D. bede, G. bitte, AS. biddan, to ask, bid, G. bitten to ask, and perh. to Gr. pei qein to persuade, L. fidere to trust. Beads are used by the Roman Catholics… …   The Collaborative International Dictionary of English

  • bead mould — Bead Bead (b[=e]d), n. [OE. bede prayer, prayer bead, AS. bed, gebed, prayer; akin to D. bede, G. bitte, AS. biddan, to ask, bid, G. bitten to ask, and perh. to Gr. pei qein to persuade, L. fidere to trust. Beads are used by the Roman Catholics… …   The Collaborative International Dictionary of English

  • Bead tool — Bead Bead (b[=e]d), n. [OE. bede prayer, prayer bead, AS. bed, gebed, prayer; akin to D. bede, G. bitte, AS. biddan, to ask, bid, G. bitten to ask, and perh. to Gr. pei qein to persuade, L. fidere to trust. Beads are used by the Roman Catholics… …   The Collaborative International Dictionary of English

  • Bead tree — Bead Bead (b[=e]d), n. [OE. bede prayer, prayer bead, AS. bed, gebed, prayer; akin to D. bede, G. bitte, AS. biddan, to ask, bid, G. bitten to ask, and perh. to Gr. pei qein to persuade, L. fidere to trust. Beads are used by the Roman Catholics… …   The Collaborative International Dictionary of English

  • Chemical test — In chemistry, a chemical test is a qualitative or quantitative procedure designed to prove the existence of, or to quantify, a chemical compound or chemical group with the aid of a specific reagent. A presumptive test is specifically used in… …   Wikipedia

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