dichromate


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Related to dichromate: sodium dichromate, Ammonium dichromate

dichromate

[dī′krō‚māt]
(inorganic chemistry)
A salt of dichromic acid, usually orange or red. Also known as bichromate.
References in periodicals archive ?
The dichromate anion [Cr.sub.2] [O.sub.7.sup.2-] is a toxic chemical species that is often found in wastewaters, as potassium dichromate, mainly resulting from wood, leather, textile and construction industry.
Increasing use of sodium dichromate in pigments manufacturing is set to drive the market growth over the forecast period; Declares MRFR
Maximum light fastness of 5 Blue Wool Standard was exhibited by alkanet dyed sample with a combination of pre- mordanting potassium dichromate; post-mordanting ferric chloride; and post-treated Albafix WFF, Dicrylan, UV-SUN and Rayosan.
Most common allergens of ESS were potassium dichromate (24%) nickel (17.3%) cobalt (17.3%) [Table 1].
A sample containing <25 mg C (total sample mass ranged from ~0.02 g for graphite to ~1.0 g for dolomite) was placed into a 250-mL conical flask; 10mL of IN potassium dichromate was added and allowed to react for 30 min, followed by rapid addition, while swirling, of 20 mL 98% sulfuric acid.
Sodium dichromate acts as a medium for producing other chromium compounds.
The only tested allergens with a statistically significant difference between the West Virginia population and the national cohort were mercapto mix (1.7% in our sample compared to 0.5% in national sample (p<0.001)) and potassium dichromate (4.6% in our sample compared to 1.6% in national sample (p.<0.001)) when the statistical correction was applied.
Paraphenylenediamine (20%) and nickel sulphate (10%) were the commonest allergens, followed by parthenium (8%), fragrance mix (8%) and potassium dichromate (8%).
Focusing on the latter, they explain to professional and amateur woodworkers such aspects as preparing the wood for color, ammonium hydroxide for fuming, potassium dichromate, introduction to natural dyes, logwood, grain filling, and wire brushing.
To determine the ion transport properties of the synthesized compounds, transition metal picrate and dichromate liquid-liquid extraction studies were carried out.
After incubating at 37[degrees]C for 5 min, the enzyme activity was terminated by adding 2 ml of 5% dichromate and acetic acid (1:3 v/v) to the reaction mixture.
Diffusion of a drop of silver nitrate solution, AgN[O.sub.3], through a gel matrix containing potassium dichromate, [K.sub.2][Cr.sub.2][O.sub.7], will lead to the periodic precipitation of silver dichromate, [Ag.sub.2][Cr.sub.2][O.sub.7] (Grzybowski, 2009; Liesegang, 1896).