Block types

HEADER Block (ID 09)

A screenshot of the main Compound module interface.

• Header section

  NAME	TYPE	SIZE, BYTES	DESCRIPTION	Area on the screenshot
  CHUNK_ID	U8	1	Block identifier (09)
  PADDING1	B1	1	Filler type
  MAGIC	B4	4	Unique combination for Compound Databases (=CMPD).
  PADDING2	B2	2	Filler type
  TIMESTAMP	OLEDATE	8	Last change data, Windows OLE format.
  READ_ONLY	B1	1	Nonzero if the database is write-protected (usually official databases).	Greyed out entries if read-only.
  UNKNOWN1	B11	11	???
  COMMENT	S11	90	Database description	Description box in the screenshot.
  PADDING3	B136	136	Filler type
  UNKNOWN2	B12	12	???

COMPOUND Block (ID 01)

A compound entry to a database.

Compound units.

Real stoichiometry.

• Compound block

  NAME	TYPE	SIZE, BYTES	DESCRIPTION	Area on the screenshot
  CHUNK_ID	U1	1	Block identifier (01)
  ELEMENT_IDS	U1x7	7	1-Byte integers corresponding to element ids in PD, MAX 7 elements.	Parsed from Formula entry box.
  ELEMENT_COEFFS	U1x7	7	1-Byte integers corresponding to element coefficients, MAX 7 elements.	Parsed from Formula entry box.
  CHARGE_RAW	I1	1	Formula charge.	Parsed from Formula entry box.
  ENTRY NUMBER	U1	1	Internal FactSage help.	Reference no. boxes (which one?).
  REFERENCE	U2	2	Internal FactSage help.	Reference no. boxes (which one?).
  TIMESTAMP	OLEDATE	8	Last change data, Windows OLE format.	Modified : above Reference no.
  UNKNOWN1	B2	2	Filler type.
  COMPOUND NAME	S40	40	Name of the compound.	Compound name box.
  RESERVED STRING1	S40	40	???	???
  FORMULA NAME	S40	40	Formula string.	Input string from Formula.
  UNKNOWN	B4	4	???
  UNIT ENERGY	???	4	J, cal	Energy menu.
  UNIT PRESSURE	???	4	atm, bar	Pressure menu.
  RESERVED STRING2	S12	12	???	???
  COEFF REAL	F8x7	28	Real coefficients for fractional formulas, i.g. Fe0.986O	Real stochiometry
  PADDING	B24	24	Filler type.

PHASES Block

Phase I type.

Phase II type.

Extended properties.

Gas extended properties.

• Phase I entry type.

  NAME	TYPE	SIZE, BYTES	DESCRIPTION	Area on the screenshot
  CHUNK_ID	U1	1	Block identifier (07)
  ELEMENT_IDS	U1x7	7	1-Byte integers corresponding to element ids in PD, MAX 7 elements.
  ELEMENT_COEFFS	U1x7	7	1-Byte integers corresponding to element coefficients, MAX 7 elements.
  CHARGE_RAW	I1	1	Formula charge.
  ENTRY NUMBER	U1	1	Internal FactSage help.
  REFERENCE	U2	2	Internal FactSage help.
  TIMESTAMP	OLEDATE	8	Last change data, Windows OLE format.
  UNKNOWN1	B2	2	Filler type.
  ENTHALPY	F8	8
  ENTROPY	F8	8
  PHASEID RAW NEG	U4	4
  PHASEID RAW	U4	4
  DENSITY RAW	F8	8
  T EXPANSION COEFFS	F4x4	16
  COMPRESSIBILITY COEFFS	F4x4	16
  BULK MODULUS DERIV	F4x2	16
  TEMPERATURE MAGN	F4	4
  MOMENT MAGN	F4	4
  PFACTOR	F4	4
  PADDING	B20	20
  PHASE NAME	S40	40
  PADDING	B80	80

• Phase II entry type.

  NAME	TYPE	SIZE, BYTES	DESCRIPTION	Area on the screenshot
  CHUNK_ID	U1	1	Block identifier (08)
  ELEMENT_IDS	U1x7	7	1-Byte integers corresponding to element ids in PD, MAX 7 elements.
  ELEMENT_COEFFS	U1x7	7	1-Byte integers corresponding to element coefficients, MAX 7 elements.
  CHARGE_RAW	I1	1	Formula charge.
  ENTRY NUMBER	U1	1	Internal FactSage help.
  REFERENCE	U2	2	Internal FactSage help.
  TIMESTAMP	OLEDATE	8	Last change data, Windows OLE format.
  UNKNOWN1	B2	2	Filler type.
  TRANSITION ENTHALPY	F8	8
  TRANSITION TEMPERATURE	F8	8
  PHASEID RAW PARENT	U4	4
  PHASEID RAW	U4	4
  DENSITY RAW	F8	8
  T EXPANSION COEFFS	F4x4	16
  COMPRESSIBILITY COEFFS	F4x4	16
  BULK MODULUS DERIV	F4x2	16
  TEMPERATURE MAGN	F4	4
  MOMENT MAGN	F4	4
  PFACTOR	F4	4
  PADDING	B20	20
  PHASE NAME	S40	40
  PADDING	B80	80

CP Blocks

Cp ranges.

• CP Block (ID 02-06)

  NAME	TYPE	SIZE, BYTES	DESCRIPTION	Area on the screenshot
  CHUNK_ID	U1	1	Block identifier (02-06)
  ELEMENT_IDS	U1x7	7	1-Byte integers corresponding to element ids in PD, MAX 7 elements.
  ELEMENT_COEFFS	U1x7	7	1-Byte integers corresponding to element coefficients, MAX 7 elements.
  CHARGE_RAW	I1	1	Formula charge.
  ENTRY NUMBER	U1	1	Internal FactSage help.
  REFERENCE	U2	2	Internal FactSage help.
  TIMESTAMP	OLEDATE	8	Last change data, Windows OLE format.
  UNKNOWN1	B2	2	Filler type.
  ENTHALPY	F8	8	Enthalpy at the lower end of the interval?
  ENTROPY	F8	8	Entropy at the lower end of the interval?
  PHASEID RAW	U4	4	???
  UNKNOWN1	B4	4	???
  TMIN	F8	8	Minimum interval temperature, K.
  TMAX	F8	8	Maximum interval temperature, K.
  CP COEFFS	F8x8	64	Heat capacity coefficients.
  CP POWERS	F8x8	64	Heat capacity powers.
  PADDING	B56	56	Filler type.

COMMENT Block (ID 10)

Phase comments.

• Comment block

  NAME	TYPE	SIZE, BYTES	DESCRIPTION	Area on the screenshot
  CHUNK_ID	U1	1	Block identifier (10)
  ELEMENT_IDS	U1x7	7	1-Byte integers corresponding to element ids in PD, MAX 7 elements.
  ELEMENT_COEFFS	U1x7	7	1-Byte integers corresponding to element coefficients, MAX 7 elements.
  CHARGE_RAW	I1	1	Formula charge.
  ENTRY NUMBER	U1	1	Internal FactSage help.
  REFERENCE	U2	2	Internal FactSage help.
  TIMESTAMP	OLEDATE	8	Last change data, Windows OLE format.
  UNKNOWN1	B2	2	Filler type.
  COMMENT	S80	80	Comment string.
  PADDING	B144	144	Filler type.

KAPPA Block (ID 11)

Diffusivity? properties.

• KAPPA block

  NAME	TYPE	SIZE, BYTES	DESCRIPTION	Area on the screenshot
  CHUNK_ID	U1	1	Block identifier (11)
  ELEMENT_IDS	U1x7	7	1-Byte integers corresponding to element ids in PD, MAX 7 elements.
  ELEMENT_COEFFS	U1x7	7	1-Byte integers corresponding to element coefficients, MAX 7 elements.
  CHARGE_RAW	I1	1	Formula charge.
  ENTRY NUMBER	U1	1	Internal FactSage help.
  REFERENCE	U2	2	Internal FactSage help.
  TIMESTAMP	OLEDATE	8	Last change data, Windows OLE format.
  UNKNOWN1	B2	2	Filler type.
  TMIN	F8	8	Minimum interval temperature.
  TMAX	F8	8	Maximum interval temperature.
  PHASEID RAW	U4	4	???.
  F1T COEFF	F8x10	80	???.
  F1T POWER	F4x8	32	???.
  F2P COEFF	F8x3	24	???.
  F2P POWER	F4x2	8	???.
  F3T COEFF	F8x5	40	???.
  F3T POWER	F4x3	12	???.
  PADDING	B4	4	Filler type.