Barium sulphate blanc fixe

Natural barium sulphates (barytes) are inert and allow very high loadings fine-particle grades are preferred to increase the density of a plastics compound, while coarse particles are better for acoustic applications, especially in automobiles. 

A needle-like, non-toxic calcium silicate (wollastonite) is used to reinforce thermoplastic and thermosetting resins. Various grades, with and without 

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The liberated phosphoric acid is concentrated and returned to the process while the barium sulphate is sold as pigment (blanc fixe). 

As has already been stated it is economical to produce hydrogen peroxide by this method only when there is a safe market for the by-product (blanc fixe). As there was an increased demand for hydrogen peroxide but not for barium sulphate, it is not surprising that the above method had to give way to other modern methods. 

SYNS ACTYBARYTE ARTIFICIAL BARITE ARTinCIAL HEAVY SPAR BAKONTAL BARIDOL BARITE BARITOP BAROSPERSE BAROTRAST BARYTA VCTIITE BARYTES BAYRITES BLANC FIXE C.1.77120 C.I. PIGMENT WHITE 21 CITOBARYUM COLONATRAST ENAMEL WHITE ESOPHOTRAST EWEISS E-Z-PAQUE FINEMEAL LACTOBARYT LIQUIBARINE MACROPAQUE NEOBAR ORATRAST PERMANENT WHITE PRECIPITATED BARIUM SULPHATE RAYBAR REDI-FLOW SOLBAR SULFURIC ACID, BARIUM SALT (1 1) SUPRAMIKE TRAVAD UNIBARYT... 

Blanc fixe precipitated barium sulphate BaS04... 

Barytes lbar- It, ber- See also blanc fixe. Natural barium sulphate used as an ink pigment and a white extender. It is considerably more abrasive and gritty than precipitated barium sulphate See image). 

Barium sulphate Zinc oxide Blanc Fixe Snow white Zinc white Feller (1986) Riffault e/[Pg.335]

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