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Iron Chromite

  • Sku - 4507
  • In Stock

Also known as Ferric Chromite (not to be confused with Chromate)

Produces grey in feldspathic glaze; black in combination with cobalt; brown with zinc; red with tin.

Iron compounds have great natural variety and are the most popular colouring pigments. In addition to the characteristics detailed below, most of them  produce yellow-ta…

kg Per kgs (Exc. VAT) Price (Exc. VAT) Quantity
0.50 £9.44 £4.72
1.00 £6.60 £6.60
2.50 £4.89 £12.23
5.00 £4.32* £21.62
10.00 £4.04* £40.41
25.00 £3.87* £96.76
50.00 £2.67* £133.30
kg Per kgs (Inc. VAT) Price (Inc. VAT) Quantity
0.50 £11.33* £5.66
1.00 £7.92 £7.92
2.50 £5.87 £14.68
5.00 £5.19* £25.94
10.00 £4.85* £48.49
25.00 £4.64* £116.11
50.00 £3.20* £159.96

* This price has been rounded to the nearest pence.

Please type the weight you require below or add pre-defined weights using the controls above.

Weight:
Price kgs: £7.92 £6.60
Total Inc. VAT Total Exc. VAT
  • Description

    Iron Chromite

    Also known as Ferric Chromite (not to be confused with Chromate)

    Produces grey in feldspathic glaze; black in combination with cobalt; brown with zinc; red with tin.

    Iron compounds have great natural variety and are the most popular colouring pigments. In addition to the characteristics detailed below, most of them  produce yellow-tan tints (depending on quality and thickness) in lead-tin glazes. At stoneware temperatures black-brown tenmoku effects are developed whilst black and grey-greens are achieved under reduction firing conditions.

    Typical results for guidance only:-

    Painted onto clay: Brown-black

    Painted onto biscuit: Brown-black

    Painted onto Unfired Glaze:  Brown (honey), black, green

    Mixed into Glaze:  Brown (honey), black, green

    Reduction Firing:  Brown (honey), black, green, pale blue (celadon)

    Properties Typical Analysis
    Appearance: Fine greenish/brown powder
    Cr₂O₃:- 44% typical
    Fe₂O₃:- >25%
    SiO₂:- <5%
    Al₂O₃:- 13-16%
    MgO:- 9-11%
       
    Moisture:- <1%
       
    Sizing:-  
    Retained on 150 micron:- 0%
    Retained on 38 micron:- <2%
  • Delivery & Returns

    Delivery & Returns

    Full Delivery & Returns information at this link>

    DELIVERIES

    Current Delivery Times: Please check the latest update at this link>

    Delivery Costs: Your carriage charge will be calculated at checkout based upon the volumetric weight of your order, and your location. If for any reason your delivery charge cannot be calculated at checkout, you will see a message explaining that our sales team will contact you with a quote. You will be under no obligation to accept this and have the right to cancel your order. 

    We deliver throughout the UK and overseas using a trusted third-party distribution network. Delivery is to kerbside or letterbox only.

    Although carriers will endeavour to deliver within the agreed timeframe, unexpected delays due to weather conditions, breakdowns, traffic and other factors may cause some disruption to schedules.


    IMPORTANT INFORMATION

    We are bound by the terms and conditions of our carriers therefore we cannot pursue a claim if these instructions are not followed:- 

    Special Delivery Conditions: You must inform us at point of order of any special conditions such as restricted access or opening times, otherwise you will be liable for any consequential costs incurred.

    Damage/Missing Items: You must check your delivery carefully before providing a ‘clear’ signature to the driver. Outward signs of damage/disruption to packaging must be noted alongside your signature. You must notify Potclays of damage or missing items within 24 hours of delivery.


    RETURNS

    Returned Goods (Non-faulty): Subject to our prior consent having been obtained, products can be returned to us in an unused condition within 30 days of invoice date.  An administrative charge will be levied of 10% of the nett value plus transport, but subject to a minimum charge of £2.00. 

    Returned Goods (Faulty): If merchandise is returned because of some defect or due to error on our part, full credit/refund will be given.  However, customers must contact us in advance so that making methods and user error can be ruled out. 

    Read more about returns >

If you have any questions contact us now

If you have any questions about our range of products, please do not hesitate to get in touch with Potclays. Our team of experts will be more than happy to answer any questions you may have.

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