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| − | == Description ==
| + | '''''Covered basket container''''' |
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| − | An alkaline, white powder or mass that readily absorbs [[water]] and [[carbon dioxide]] from the air. Barium oxide is used as a dehydrating agent and as a glaze ingredient.
| + | Micmac (Native American) |
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| − | == Synonyms and Related Terms ==
| + | U.S.A., Canada, Maine or Nova Scotia, about 1875 |
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| − | barium monoxide; barium protoxide; calcined baryta; heavy earth
| + | Porcupine quills and birch bark |
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| − | == Risks ==
| + | 10.79 x 13.02 x 20.32 cm (4 1/4 x 5 1/8 x 8 in.) |
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| − | * Highly toxic by ingestion.
| + | Museum of Fine Arts, Boston: Gift of Mr. and Mrs. William White Howells 1973.161a-b |
| − | * Contact with skin and membranes may cause irritation.
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| − | * Reaction with water can be violent.
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| − | * ThermoFisher: [https://www.fishersci.com/store/msds?partNumber=AC207830250&productDescription=BARIUM+OXIDE%2C+90%25%2C+POWDE+25GR&vendorId=VN00032119&countryCode=US&language=en SDS]
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| − | ==Physical and Chemical Properties==
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| − | * Reacts exothermically with water to form barium hydroxide.
| + | ''for more information see:'' |
| − | * Soluble in water, dilute acids and methanol.
| + | [https://collections.mfa.org/objects/40663/covered-basket-container?ctx=4fab7d56-fd9f-4b3f-8a93-26ce5a0b1c93&idx=0 MFA Online Collections Database] |
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| − | {| class="wikitable"
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| − | |-
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| − | ! scope="row"| Composition
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| − | | BaO
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| − | |-
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| − | ! scope="row"| CAS
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| − | | 1304-28-5
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| − | ! scope="row"| Melting Point
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| − | | 1923 C
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| − | |-
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| − | ! scope="row"| Density
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| − | | 5.7 g/ml
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| − | |-
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| − | ! scope="row"| Molecular Weight
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| − | | mol. wt. = 153.33
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| − | |-
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| − | ! scope="row"| Refractive Index
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| − | | 1.980
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| − | |}
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| − | ==Resources and Citations==
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| − | * G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 84
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| − | * Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993
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| − | * Susan E. Schur, Conservation Terminology: A review of Past & Current Nomenclature of Materials, ''Technology and Conservation'', Spring (p.34-39); Summer (p.35-38); Fall (p.25-36), 1985
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| − | * Michael McCann, ''Artist Beware'', Watson-Guptill Publications, New York City, 1979
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| − | * ''Van Nostrand's Scientific Encyclopedia'', Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
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| − | | |
| − | * Random House, ''Webster's Encyclopedic Unabridged Dictionary of the English Language'', Grammercy Book, New York, 1997
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| − | | |
| − | * ''The Merck Index'', Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 1015
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| − | * ''CRC Handbook of Chemistry and Physics'', Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980 Comment: ref. index=1.980
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| − | [[Category:Materials database]]
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Covered basket container
Micmac (Native American)
U.S.A., Canada, Maine or Nova Scotia, about 1875
Porcupine quills and birch bark
10.79 x 13.02 x 20.32 cm (4 1/4 x 5 1/8 x 8 in.)
Museum of Fine Arts, Boston: Gift of Mr. and Mrs. William White Howells 1973.161a-b
for more information see:
MFA Online Collections Database
